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NJM2527 COLOR TFT SIGNAL PROCESSOR s GENERAL DESCRIPTION The NJM2527 is a color TFT signal processor. It contains all function, like as Y/C separator circuit, color signal de-modulator, synchronous separate circuit, RGB interface, and sideblack control circuit, required by color TFT signal processing. The NJM2527 keeps selecting NTSC/PAL with external VCXO circuit TRAP circuit for each broadcasting. s PACKAGE OUTLINE NJM2527FR2 s FEATURES q NTSC/PAL matching (Resemblance PAL de-modulation system) q Internal Y/C separate circuit q Input mode: Composite video signal, Y/C separate signal, External RGB signal q Internal synchronous separate circuit (Liquid crystal panel PLL use) q Internal black level insertion circuit (Use for aspect ratio change) q Internal Gamma 2-point correction circuit q Bipolar technology q Package Outline QFP48-R2 s BLOCK DIAGRAM SIDEBLACK SUBVG2B SUBVG2R SUBVG1B SUBVG1R BRIGHT ROUT RDET EXTINR VCC2 s PIN CONFIGURATION 1 . GDET 2 . GOUT 3 . BDET 4 . BOUT 5 . FRP 6 . GND1 7 . SW 8 . YCLAMP 9 . HSYIN 10.SYNCOUT 11.SYNCIN 12.REGOUT 13.CIN 14.ACCDET 15.FADJ 16.KILLER 17.CLEANING 18.IDENT 19.TINT 20.COLOR 21.PALPHASE 22.VCXOIN(NTSC) 23.VCXOOUT(NTSC) 24.APC 25.VCXOIN(PAL) 26.VCXOOUT(PAL) 27.PICTURE 28.VIDEOIN 29.TRAP 30.VCC1 31.CONTRAST 32.GACLAMPB 33. EXTINB 34. GACLAMPG 35. EXTING 36. GACLAMPR 37.EXTINR 38. VG1 39. VG2 40. SUBVG1R 41. SUBVG1B 42. SUBVG2R 43. SUBVG2B 44. SIDEBLACK 45. BRIGHT 46.VCC2 47. RDET 48. ROUT VG2 VG1 38 48 47 46 45 44 43 42 41 40 39 37 GDET 1 GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT CONTRAST 36 GACLAMPR ALTAMP CLAMP GOUT BRIGHT 2 LIMITER 35 EXTING BDET 3 INT/EXT SW 34 GACLAMPG BOUT 4 FRP 5 MATRIX DEMOD 1/2*VCC 2 33 EXTINB 32 GACLAMPB GND1 6 31 CONTRAST SW 7 30 VCC1 PICTURE YCLAMP 8 COLOR KILLER IDENT MASK HSYIN 9 BGPGE N 29 TRAP CLAMP CLAMP TRAP 28 VIDEOIN PICTURE SYNCOUT 10 SYNCSE P 27 SHIFT TINT ACC APC HPF SYNCIN 11 26 VCXOOUT(PAL) VCXO 25 REGOUT 12 REG VCXOIN(PAL) 13 14 15 16 17 18 19 20 21 22 23 24 VCXOOUT(NTSC) VCXOIN(NTSC) IDENT Ver.3 PALPHASE CLEANING ACCDET KILLER COLOR FADJ TINT APC CIN -1- NJM2527 s ABSOLUTE MAXIMUM RATINGS PARAMETERS Supply Voltage 1 Supply Voltage 2 Power Dissipation Each Adjustment Terminal Sync Out Voltage Video Input Voltage External Input Voltage Analog RGB Input Signal FRP Input Signal Voltage SYNC Input Voltage Operating Temperature Range Storage Temperature Range SYMBOL VCC1 - GND VCC2 - GND PD VIN VSD VVDIN EXTIN RGBIN FRPIN SYNCIN Topr Tstr RATINGS 10.0 10.0 1000* VCC1 10.0 3.0 VCC1 VCC1 VCC1 3.0 -40 to +85 -40 to +150 (Ta=25C) UNIT V V W V V VP-P V V V VP-P C C *Test Board(117.0x84.0x0.8mm)mounting s RECOMMENDED OPERATING CONDITION PARAMETER Supply Voltage Range Composite Signal Voltage Y Input Signal Voltage C Input Signal Voltage Analog RGB Input Signal SYNC Input Signal HSY Input Signal TINT Adjust Voltage Color Adjust Voltage BY De-mod. Axis Adjust Voltage Picture Adjust Voltage Contrast Adjust Voltage Gamma 1 Adjust Voltage Gamma 2 Adjust Voltage Sub Gamma 1 Adjust Voltage Sub Gamma 2 Adjust Voltage Bright Adjust Voltage SYMBOL VIN YIN CIN RGBIN SYNCIN HSYIN TINT COLOR PALPHASE PICTURE CONTRAST VG1 VG2 SUBVG1R, B SUBVG2R, B BRIGHT NTSC PAL TEST CONDITION VCC1 - GND VCC2 - GND Pedestal-White Pedestal-White Amplitude of Burst Signal Pedestal-White C.Sync Sync Tip-Pedestal MIN. 4.75 VCC1 0.6 0.6 0.2 0.6 0.3 2 1.6 0 0 0 1.5 1.5 1.5 0 0 1.9 TYP. 5.0 5.0 0.7 0.7 0.3 0.7 1.0 0 (Ta=25C) MAX. 5.25 7.0 0.8 0.8 0.4 0.8 1.5 5 4.1 0.3 5 5 5 2.8 3.5 3.8 5 5 3.6 UNIT V V VP-P VP-P VP-P VP-P VP-P VP-P V V V V V V V V V V V (Point 1) Investigation Crosstalk level when design for depend to application. Ver.3 -2- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Operating Current 1 Operating Current 2 SYMBOL ICC1 ICC2 TEST CONDITION (TP=IC Pin No.) VCC1, No signal VCC2, No signal SG1 applied to TP33, TP35 and TP37. SG10 applied to TP5, SG11 applied to TP9, SG2 applied to TP11, define the each amplitude (BLK-WHT) at SW7=H, and TP31=0V, 2.5V, 5V as V1, V2 and V3. Then measure the each output of the non-inverting GCT1=20LOG(V1/V2) GCT2=20LOG(V3/V2) Measure points are Rout, Gout, Bout. SG3 (100KHz, 2.0MHz / 70mVp-p) applied to TP28, SG10 applied to TP5, SG11 applied to TP9, SG2 applied to TP11, 1.5V applied to TP38, 3.2V applied to TP39.measure amplitude on TP2 of non-inverting. The each gain on SG3 of sin signal of frequency define as G(2.0M),G(100K). GPSMIN1=G (2.0M)-G (100K) At SW27=H, TP27=0V GPSMAX1=G (2.0M)-G (100K) At SW27=H, TP27=5V SW13=H, TP13(B)=0V, SG3 (100KHz, 2.0MHz / 70mVp-p) applied to TP28, SG10 applied to TP5, SG11 applied to TP9,SG2 applied to TP11, 1.5V applied to TP38, 3.2V applied to TP39.measure amplitude on TP2 of non-inverting.The each gain on SG3 of sin signal of frequency define as G(2.0M),G (100K). (typical swing) GPSMIN2=G (2.0M)-G (100K) at SW27=H,TP27=0V GPSMAX1=G (2.0M)-G (100K) at SW27=H,TP27=5V SW13=H, TP13(B)=0V,TP27=2.5V,SG2 applied to TP11, SG11 applied to TP9, SG3 (100KHz, 3.579545MHz , 4.43361875MHz 200mVpp) applied to TP28. B1, B2 define output swing of TP2 at TP19=2.8V,SG3 (3.579545MHz), SG3 (100KHz). B3, B4 define output swing of TP2 at TP19=0V, SG3 (4.43361875MHz), SG3 (100kHz). GCFNT=20*LOG (B1/B2) GCFPAL=20*LOG (B3/B4) MIN. TYP. 45.0 14.5 MAX. 60.0 20.0 UNIT mA mA GCT1 Contrast Adjust Gain Variable Range GCT2 - -12.0 -9.0 dB 1.0 2.5 - Image Quality Adjust Variable Minimum Range (Y/C) GPSMIN1 - 0.0 4.0 dB Image Quality Adjust Variable Maximum Range (Y/C) GPSMAX1 10.0 15.0 - Image Quality Adjust Variable Minimum Range (Composite) GPSMIN2 - -5.0 -1.0 dB Image Quality Adjust Variable Maximum Range (Composite) GPSMAX2 6.0 10.0 - Trap attenuation (NTSC) GCF NT - -45 -30 dB Trap attenuation (PAL) GCF PAL - -45 -30 Ver.3 -3- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG11 applied to TP9, SG2 applied to TP11, 0.7V applied to TP38,SG6 (3.579545MHz, 300mVpp typical swing) applied to TP13, Vo1, Vo2 and Vo3 define output swing of TP2 at set SG6 on 0dB, +6dB, -25dB toward 0.3Vpp. GA1=20LOG(Vo2/Vo1) GA2=20LOG(Vo3/Vo1) MIN. TYP. MAX. UNIT G A1 ACC Characteristic (NTSC) GA 2 - 0.0 2.0 dB -15.0 -10.0 - GA 3 ACC Characteristic (PAL) GA 4 G c1 Color Control Gain Variable Range G c2 f A1 APC Capture Range (Input Composite Signal, NTSC) f A2 f A3 APC Capture Range (Input Y/C Signal, NTSC) f A4 SG11 applied to TP9, SG2 applied to TP11, 0.7V applied to TP38,SG6 (4.43MHz, 300mVpp typical swing) applied to TP13,TP19=L.Vo1, Vo2 and Vo3 define output swing of TP2 at set SG6 on 0dB, +6dB,-25dB toward 0.3Vpp. -15.0 GA3=20LOG(Vo2/Vo1) GA4=20LOG(Vo3/Vo1) SG11 applied to TP9, SG2 applied to TP11, 0.7V applied to TP38,SG6 -70 (3.579545MHz,typical Swing 300mVpp) applied to TP13. Vo1, Vo2 and Vo3 define output swing of TP2 at TP20=0V, 2.5V, 5.0V. 2.0 GC1=20LOG(Vo1/Vo2) GC2=20LOG(Vo3/Vo2) SG11 applied to TP9, SG2 applied to TP11, SG6 (3.579545MHz, 300mVpp typical swing) applied to TP13 or TP28. This item is difference between the input frequency and 3.579545 MHz at work out 2V of TP16 voltage by variable the BURST +700 frequency. fA1=when approach BURST frequency from low frequency. fA2= when approach BURST frequency from high frequency at SW13=H,TP13(B)=0V,VIDEOIN=SG6 fA3=when approach BURST frequency from low frequency. fA4= when approach BURST +700 frequency from high frequency at SW13=L,TP13=SG6 0.0 2.0 dB -10.0 - -50 -40 dB 4.0 - -2900 -700 Hz +1500 - -2900 -700 Hz +1500 - Ver.3 -4- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG11 applied to TP9, SG2 applied to TP11, TP19=0, SG6 (4.43361875, 300mVpp typical swing) applied to TP13 or TP28. This item is Difference between the input frequency and 4.43361875 MHz at work out 2V of TP16 voltage by variable the BURST frequency. fA5=when approach BURST frequency from low frequency. fA6= when approach BURST frequency from high frequency at SW13=H,TP13(B)=0V,VIDEOIN=SG6 fA7=when approach BURST frequency from low frequency. fA8= when approach BURST frequency from high frequency at SW13=L,TP13=SG6 SG3 (700mVpp, 3.579545MHz) applied to TP28, SG2 applied to TP11, SG11 applied to TP9. SW13=H, TP13 (B) voltage at change Y/C to composite by raise on TP13 (B) voltage. SG3 (700mVpp, 3.579545MHz) applied to TP28, SG2 applied to TP11, SG11 applied to TP9, SG10 applied to TP5, SW13=H, TP13 (B) Voltage at change composite to Y/C by drop on TP13 (B) voltage. SG6 (3.579545MHz, 300mVpp) applied to TP13, SG2 applied to TP11, SG11 applied to TP9. The 1 was controlled input phase so that output swing of TP2 maximum at TP19=1.6V. The each 2 and 3 were the controlled input phase so that output swing of TP2 maximum at TP19=2.8V, 4.0V. T1=2-1 T2=2-3 SG6 (3.58MHz, 300mVpp) applied to TP13, SG2 applied to TP11, SG11 applied to TP9.This item TP19 voltage at change from NTSC to PAL at down TP19 voltage. MIN. TYP. MAX. UNIT f A5 APC Capture Range (Input Composite Signal, PAL) f A6 - -2900 -700 Hz +700 +1500 - f A7 APC Capture Range (Input Y/C Signal, PAL) f A8 - -2900 -700 Hz +700 +1500 - CompositeY/C Input Switching Voltage VTHCY 1.3 1.6 1.9 V Y/CComposite Input Switching Voltage VTHYC 0.7 1.0 1.3 V T1 TINT Variable Range T2 +30 +45 - deg - -45 -30 NTSC /PAL Switching Voltage VTHNP 0.4 0.7 1.0 V Ver.3 -5- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Color Killer Operating Input Level (NTSC) SYMBOL TEST CONDITION (TP=IC Pin No.) SG6 (3.58MHz, 300mVpp) applied to TP13, SG2 applied to TP11, SG11 applied to TP9.This item Measure input level at killer is tern on at decrease the input swing. TP19=0V, SG2 applied to TP11, SG11 applied to TP9, SG6 (4.43MHz, 300mVpp) applied To TP13.This item measure input level at killer is tern on at decrease The input swing. SG2 applied to TP11, SG11 applied to TP9, SW7=H, SG1 (700mVpp) applied to TP33, TP35, TP37, SG10 applied to TP5. Then VRB, VGB, and VBB define the non-invert black level of TP48, TP2, TP4. VRBI, VGBI, and VBBI define the invert black level of them. VBRGB=VRB-VGB,VBB-VGB= VRBl-VGBl, SW7=L,SG4 applied to TP28. Then VRB (Y),VGB (Y), and VBB (Y) defines the non-inverting black level of TP48, TP2, and TP4. VRBI (Y), VGBI(Y), and VBBI (Y) define the invert black level of them. VBlE=VRB-VRB (Y), VGB-VGB (Y), =VBB-VBB (Y),VRBl-VRBl(Y), =VGBl-VGBl(Y),VBBl-VBBl(Y) SG2 applied to TP11, SG11 Applied to TP9, SW7=H, SG1 (700mVpp) applied to TP33, TP35, TP37, SG10 applied TP5. This item measure the signal swing (BLK-WHT) of TP48, TP2, TP4. VRG, VGG, VBG define the noninverting side of them. VRGl, VGGl, VBGl define the invert side of them. SW7=L, SG4 applied TP28. This item measure the signal swing (BLK-WHT) of TP48, TP2, TP4. VYRG, VYGG, VYBG define the non-inverting side of them. GINV =20LOG(VRGI/VRG) =20LOG(VGGI/VGG) =20LOG(VBGI/VBG) VRGB =20LOG(VRG/VGG) =20LOG(VGG/VBG) =20LOG(VBG/VRG) GIE =20LOG(VRG/VYRG) =20LOG(VGG/VYGG) =20LOG(VBG/VYBG) MIN. TYP. MAX. UNIT VKIN1 - -42 dB Color Killer Operating Input Level (PAL) VKIN2 - -37 - Output Level Voltage Difference among RGB VBRGB -150 0 +150 mV INT-EXT Output Black Level Voltage Difference VBIE -150 0 +150 mV Gain Difference Between Invert And Non-invert GINV -0.6 0 +0.6 Gain Difference Among RGB GRGB -0.6 0 +0.6 dB INT-EXT Gain Difference GIE -0.6 0 +0.6 Ver.3 -6- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER FRP Input Threshold Voltage SYMBOL TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11, SG11 Applied to TP9, SW7=H, SG1 applied to TP35.This item define TP5 voltage at invert output of TP2 at increase TP5 voltage. SG2 applied to TP11, SG11 applied to TP9, SW7=H, 1.5V applied to TP31 , 3.2V applied to TP38, SG5 (100kHz) applied to TP35. Sine wave of non-invert output signal of TP2 is input signal frequency at -3dB Toward swing of 100kHz at variable frequency of SG5. Switching Voltage of TP7 VTHEXH=ON Level Voltage Switching Voltage of TP7 VTHEXL=OFF Level Voltage SG2 applied to TP11,SG11 applied to TP9,SW7=H,SG10 applied to TP5 SG7(350mVpp) applied to TP33,TP35,TP37. This item measure the slope on TP48,TP2, and TP4 at TP38=1.8V,TP39=3.0V. Output voltage MIN. TYP. MAX. UNIT VTHFRP 1.2 1.5 1.8 V Interface Frequency as Characteristic fINT 5.0 6.5 - MHz EXTRGB Input Threshold Voltage VTHEXH VTHEXL 2.0 - - V 0.8 G1 22.0 26.0 30.0 Gamma Characteristic dB G2 G2 7.5 G1 11.5 15.5 Synchronous Separate Input Sensitivity Current Synchronous Separate Output ON Voltage Leak Current at Synchronous Separate Output OFF Synchronous Separate Output Delay 1 IIS VON ISL tPHLSY Input voltage Current flow from TP11. Then measure current at TP10 change from High to Low. SG2 applied to TP11.Then Measure output signal level voltage of TP10. Current 40uA flow from TP11.Then measure current of sink to TP10 at TP10=5V. SG2 applied to TP11.Then Measure time difference of 50% swing level of SYNCIN and TP10 SYNCIN tPHLSY - 21 30 A - 0.2 0.5 V - - 1.0 A - 0.3 s Synchronous Separate Output Delay 2 tPLHSY TP10 tPLHSY - 0.4 - Ver.3 -7- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Synchronous Separate Output Turn OFF Time Synchronous Separate Output Turn OFF Time External Synchronous Input Timing 1 External Synchronous Input Timing 2 External Synchronous Input Timing 3 SYMBOL ttHL ttLH TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11.Then measure time difference of 20% to 80% swing level of TP10. Sync Separate Output MIN. - TYP. 0.2 0.2 MAX. - UNIT s - t1 3.0 - - t2 t1 External Sync Input t3 2.0 - - s t3 t2 1.6 2.0 2.4 RGB Output Delay Time 1 tPHL1 RGB Output Delay Time 2 tPHL2 CTRGB1 Crosstalk Among RGB CTRGB2 CTRGB3 SG2 applied to TP11, SG11 applied to TP9, SW7=H, SG10 applied TP5, SG8 (0.35Vpp) applied to TP33, TP35, TP37. Then measure time difference of 50% swing level of TP33 and TP48,TP35 and TP2, TP37 and TP4 tPHL1=turn ON tPHL2=turn OFF SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP7=H, TP5=H, TP35= TP33=GND, SG5 (1MHz, 700mVpp) applied to TP37. Measure the output of 1MHz component on TP48, TP2 and TP4. Calculate the swing ratio of TP2, TP4 toward TP48. SG2 applied to TP11 , SG11 applied to TP9,SW7=H, TP7=H,TP5=H,TP37=TP33=GND, SG5 (1MHz, 700mVpp) applied to TP35. Measure the output of 1MHz component on TP48, TP2 and TP4. Calculate the swing ratio of TP48, TP4 toward TP2. SG2 applied to T P11, SG11 applied to TP9,SW7=H, TP7=H,TP5=H, TP37=TP35=GND, SG5 (1MHz, 700mVpp) applied to TP33. Measure the output of 1MHz component on TP48, TP2 and TP4. Calculate the swing ratio of TP48, TP2 toward TP4. - 0.1 s - 0.1 - - -50 -40 - -50 -40 dB - -50 -40 Ver.3 -8- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG5 (1MHz, 700mVpp) applied to TP37, TP28=GND. Measure the output of 1MHz component on TP48. Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG5 (1MHz, 700mVpp) applied To TP35, TP28 =GND. Measure the output of 1MHz component on TP2.Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG5 (1MHz, 700mVpp) applied To TP33, TP28 =GND. Measure the output of 1MHz component on TP4.Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG3 (1MHz, 700mVpp) applied to TP28, TP37=GND. Measure the output of 1MHz component on TP48.Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG3 (1MHz, 700mVpp) applied To TP28, TP35=GND. Measure the output of 1MHz component on TP2.Calculate the swing ratio of TP7=5V,0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG3 (1MHz, 700mVpp) applied To TP28, TP33=GND. Measure the output of 1MHz component on TP4.Calculate the swing ratio of TP7=5V, 0V. MIN. TYP. MAX. UNIT CTERINT - -50 -35 Crosstalk 1 Between SW (EXTINT) CTEGINT - -50 -35 dB CTEBINT - -50 -35 CTIE1R - -50 -35 Crosstalk 2 Between SW (INTEXT) CTIE1G - -50 -35 dB CTIE1B - -50 -35 Ver.3 -9- NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11 , SG11 applied to TP9,SW7=H,SG10 applied to TP5. When TP44=5V, define the non-invert black level of TP48, TP2, TP4 as VRB, VGB, VBB. When TP44=5V, define the invert black level of TP48,TP2,TP4 as VRBI,VGBI, VBBI. When TP44=0V, define the non-invert black level of TP48,TP2, TP4 as VRB (B), VGB (B), VBB (B). When TP44=0V, define the invert black level of TP48,TP2,TP4 as VRBI(B), VGBI (B), VBBI (B). VSB=VRB-VRB (B), VGB-VGB (B), VBB-VBB (B) =VRBI (B)-VRBI, VGBI (B)-VGBI, VBBI (B)-VBBI Delay time of Y signal and C signal At TP2. SG2 applied to TP11.SG11 applied To TP9.SW7=H, TP7=H, SG8 applied to TP33, TP35, TP37.TP11=SG2. Measure the tern on and tern off time at 20% to 80% of output wave on TP48, TP2, TP4.Then convert to slew rate. SG6 (3.58MHz, 300mVpp) applied to TP13, SG10 applied to TP5, SG2 applied to TP11,SG11 applied to TP9.TP38=1.5V,TP39=3.0V, vary the chroma phase on SG6,define non-inverting maximum output swing of TP48, TP2, SYNC IN as VR, VG, VB. (R-Y)/(B-Y)=VR/VB (G-Y)/(B-Y)=VG/VB MIN. TYP. MAX. UNIT Side-black Level VSB - 100 - mV Delay Between Y-C TdYC - 200 - ns RGB Slew Rate SRRGB 9 22 40 V/s Demodulation Relativity Swing (R-Y/B-Y) Demodulation Relativity Swing (G-Y/B-Y) R-Y B-Y - 0.65 - G-Y B-Y - 0.45 - Ver.3 - 10 - NJM2527 s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Demodulation Relativity Phase (R-Y/B-Y) Demodulation Relativity Phase (G-Y/B-Y) SYMBOL RB TEST CONDITION (TP=IC Pin No.) SG6 (3.58MHz, 300mVpp) applied to TP13, SG10 applied to TP5, SG2 applied to TP11, SG11 applied to TP9. TP38=1.5V,TP39=3.0V,vary the chroma phase on SG6, define the phase at maximum output amplitude of TP48, TP2, TP4 as R,G,B. RB=R-B GB=G-B SG6 (3.58MHz, 300mVpp) applied to TP13, DC5V applied to TP5, SG2 Applied to TP11, SG11 applied to TP4, adjust the chroma phase on SG6 for maximum the amplitude of TP4. Measure the ratio of 7.159059MHz component to the 15.734kHz component. MIN. TYP. MAX. UNIT - 90 deg GB - 240 - Demodulation Output residual Carrier VCR - -40 - dB Ver.3 - 11 - NJM2527 s APPLICATION CIRCUIT EXAMPLE (NTSC/PAL) 1H +5V 5V 0V 0.1 0.1 0.1 0.1 0.1 0.1 0.7Vp-p 0.01 1 SIDEBLACK SUBVG2B SUBVG2R SUBVG1B VG2 ROUT 100 5V 45 5V 43 5V 42 5V 41 5V 40 5V 39 5V 38 100 48 47 46 44 VG1 + 37 0.1 EXTINR BRIGHT + RDET SUBVG1R VCC2 75 0.1 EXTINR Analog RGB Signal 1 + 1 GDET ALTAMP LIMITER BRIGHT 2 GOUT GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT 36 0.1 Analog RGB Signal EXTING 0.7Vp-p GACLAMPR CONTRAST CLAMP 35 0.1 75 0.1 GACLAMPG 33 0.1 EXTINB MATRIX EXTINB 0.7Vp-p To Liquid crystal RGB input terminal 100 EXTING INT/EXT SW 34 1 + 3 BDET 4 1/2*VCC2 Analog RGB Signal 100 1H 5V BOUT DEMOD 5 FRP 6 GND1 5V 7 SW 0.1 YCLAMP 9 BGPGEN 10 8 PICTURE CLAMP COLOR KILLER CLAMP IDENT MASK TRAP 29 30 32 75 GACLAMPB 5V 31 CONTRAST VCC1 100 + 0.1 0.1 8.2uH +5V TRAP 15uH 75 0.01 100p Compsite Video Signal 1.0Vp-p VIDEOIN 28 1 5V 27 + Liquid crystal panel PLL input, output 5V 360 SYNCIN 75 0.1 1k HSYIN 5V VIDEOIN SYNCOUT 910k + PICTURE 500 SHIFT TINT ACC 11 APC HPF SYNCSEP 26 VCXO 25 *3 0.1 3p SYNCIN 1000p 12 REGOUT REG VCXOOUT(PAL) VCXOIN(PAL) CSYNC Signal Compsite Signal 1.0Vp-p 0.1 13 CIN 14 ACCDET 15 FADJ 16 KILLER 17 IDENT CLEANIN 18 19 TINT 5V 20 COLOR 5V 21 PALPHASE 5V 22 VCXOOUT(NTSC) VCXOIN(NTSC) 23 24 APC 5V 5.6k 0.01 0.47 8.2k + 0.01 0.047 56p 10M 680p 12k 0.1 1M 0.1 0.1 0.1 75 *1 5V CIN 0.3Vp-p *1:332PN-2636BS(TOKO) *2:3.579545MHz X'tal DSX151GA(DAISHINKU) *3:4.433619MHz X'tal DSX151GA(DAISHINKU) Color Signal 3p *2 1.8k Ver.3 - 12 - NJM2527 s APPLICATION CIRCUIT EXAMPLE (NTSC) 1H +5V 5V 0V 0.1 0.1 0.1 0.1 0.1 0.1 0.7Vp-p 0.01 1 SIDEBLACK SUBVG2B SUBVG2R SUBVG1B VG2 ROUT 100 5V 45 5V 43 5V 42 5V 41 5V 40 5V 39 5V 38 100 48 47 46 44 VG1 + 37 0.1 EXTINR BRIGHT + RDET SUBVG1R VCC2 75 0.1 EXTINR Analog RGB Signal 1 + 1 GDET ALTAMP LIMITER BRIGHT 2 GOUT GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT 36 0.1 Analog RGB Signal EXTING 0.7Vp-p GACLAMPR CONTRAST CLAMP 35 0.1 75 0.1 GACLAMPG 33 0.1 EXTINB MATRIX EXTINB 0.7Vp-p To Liquid crystal RGB input terminal 100 EXTING INT/EXT SW 34 1 + 3 BDET 4 1/2*VCC2 Analog RGB Signal 100 1H 5V BOUT DEMOD 5 FRP 6 GND1 5V 7 SW 0.1 YCLAMP 9 BGPGEN 10 8 PICTURE CLAMP COLOR KILLER CLAMP IDENT MASK TRAP 29 30 32 75 GACLAMPB 5V 31 CONTRAST VCC1 100 + 0.1 0.1 8.2uH +5V TRAP 15uH 75 0.01 100p Compsite Video Signal 1.0Vp-p VIDEOIN 28 1 5V 27 + Liquid crystal panel PLL input, output 5V 360 SYNCIN 75 0.1 1k HSYIN 5V VIDEOIN SYNCOUT 910k + PICTURE SHIFT 11 SYNCSEP 26 VCXO 25 VCXOIN(PAL) VCXOOUT(PAL) 0.1 SYNCIN 1000p 12 REGOUT REG CSYNC Signal Compsite Signal 1.0Vp-p 0.1 13 CIN 14 ACCDET 15 FADJ 16 KILLER 17 CLEANIN 18 IDENT 19 TINT 5V 20 COLOR 5V 21 PALPHASE TINT 22 ACC APC HPF 23 VCXOOUT(NTSC) 24 APC 5V 5.6k 0.01 0.47 8.2k + VCXOIN(NTSC) 12k 0.047 0.1 1M 0.1 0.1 75 CIN 0.3Vp-p *1:3.579545MHz X'tal DSX151GA(DAISHINKU) Color Signal 3p *1 1.8k Ver.3 - 13 - NJM2527 s APPLICATION CIRCUIT EXAMPLE (PAL) 1H +5V 5V 0V 0.1 0.1 0.1 0.1 0.1 0.1 0.7Vp-p 0.01 1 SIDEBLACK SUBVG2B SUBVG2R SUBVG1B VG2 ROUT 100 5V 45 5V 43 5V 42 5V 41 5V 40 5V 39 5V 38 100 48 47 46 44 VG1 + 37 0.1 EXTINR BRIGHT + RDET SUBVG1R VCC2 75 0.1 EXTINR Analog RGB Signal 1 + 1 GDET ALTAMP LIMITER BRIGHT 2 GOUT GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT 36 0.1 Analog RGB Signal EXTING 0.7Vp-p GACLAMPR CONTRAST CLAMP 35 0.1 75 0.1 GACLAMPG 33 0.1 EXTINB MATRIX EXTINB 0.7Vp-p To Liquid crystal RGB input terminal 100 EXTING INT/EXT SW 34 1 + 3 BDET 4 1/2*VCC2 Analog RGB Signal 100 1H 5V BOUT DEMOD 5 FRP 6 GND1 5V 7 SW 0.1 YCLAMP 9 BGPGEN 10 8 PICTURE CLAMP COLOR KILLER CLAMP IDENT MASK TRAP 29 30 32 75 GACLAMPB 5V 31 CONTRAST VCC1 100 + 0.1 0.1 8.2uH +5V TRAP 15uH 75 0.01 100p Compsite Video Signal 1.0Vp-p VIDEOIN 28 1 5V 27 + Liquid crystal panel PLL input, output 5V 360 SYNCIN 75 0.1 1k HSYIN 5V VIDEOIN SYNCOUT 910k + PICTURE 500 SHIFT TINT ACC 11 APC HPF SYNCSEP 26 VCXO 25 *2 0.1 3p SYNCIN 1000p 12 REGOUT REG VCXOOUT(PAL) VCXOIN(PAL) CSYNC Signal Compsite Signal 1.0Vp-p 0.1 13 CIN 14 ACCDET 15 FADJ 16 KILLER 17 IDENT CLEANIN 18 19 TINT 20 COLOR 5V 21 PALPHASE 5V 22 VCXOIN(NTSC) 23 VCXOOUT(NTSC) 24 APC 5V 5.6k 0.01 0.47 8.2k + 0.01 0.1 0.047 1M 56p 10M 680p 12k 0.1 *1 5V CIN 0.3Vp-p *1:332PN-2636BS(TOKO) *2:4.433619MHz X'tal DSX151GA(DAISHINKU) Color Signal 0.1 75 Ver.3 - 14 - NJM2527 s INPUT SIGNAL SYMBOL No Sync 10 Step Video Signal INPUT SIGNAL 350mVp-p SG1 700mVp-p 1H Composite Y Signal with Sync signal 4.7s SG2 1H 286mVp-p or 10 STEP Signal Sine Video Signal with Sync Variable amplitude SG3 350mVp-p Variable frequency and amplitude 100mVp-p, 700mVp-p 286mVp-p 1H 10STEP Vide Signal 700mVp-p SG4 1H Ver.3 - 15 - NJM2527 s INPUT SIGNAL SYMBOL Sine Video Signal with No sync Variable frequency and amplitude SG5 Variable amplitude 400mVp-p, 700mVp-p 350mVp-p 1H INPUT SIGNAL C Signal SG6 Burst Swing =300mVP-P Chroma Swing =300mVP-P Ramp Video Signal with no sync SG7 350mVp-p 1H Turn ON, Turn OFF Video Signal under 50ns SG8 350mVp-p 1H Turn ON, Turn OFF Signal under 50ns 5V SG9 5Vp-p 0V 1H Ver.3 - 16 - NJM2527 s INPUT SIGNAL SYMBOL FRP Signal of inverting Every 1H INPUT SIGNAL 1H SG10 5V 5Vp-p 0V Horizontal Sync. Signal Synchronous to SG2 4.7S 1H 286mVp-p t1 t3=2S(typ) 2.0V t2=5S(typ) 0.8V SG11 SG2 SG11 Ver.3 - 17 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the capacitor for G signal center mpdulator. Leakless capacitor for use. INSIDE EQIVALENT CIRCUIT VCC2 5K 1 GDET 200 GND1 GND1 G signal output. VCC2 2 GOUT 250 GND1 GND1 32K Connect to the capacitor for B signal center modulator. Leakless capacitor for use. 5K VCC2 3 BDET 200 GND1 GND3 B signal output. VCC2 4 BOUT 250 GND3 GND1 32K Ver.3 - 18 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the polarity reversal pulse of RGB output signal. Input: 5VP-P INSIDE EQIVALENT CIRCUIT VCC1 5 FRP 200 30K 36K GND1 GND1 30K 36K 30K 36K Connect to GND. 6 GND1 Select the internal/external signal. SW=Low:Internal signal mode High:External signal mode VCC 7 SW SW L H OUT INT EXT 36K GND GND 36K 36K 200 30K 30K 30K Connect to the CLAMP capaciter for Y-signal. Leakless capacitor for use. VCC1 8 YCLAMP GND1 GND1 Ver.3 - 19 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the outside synchronous. Fripfrop reverse with the start of synchronous signal at PAL. INSIDE EQIVALENT CIRCUIT VCC1 9 HSYIN 200 20K 40K GND1 GND1 Composite synchronous signal output, non-inverting and open collector. VCC1 10 SYNC OUT 4K 30K GND1 8K GND1 Synchronous signal input, synchronize with RGBOUT. Input level is 2Vp-p maximum,and can input include Y-signal and composite video signal. 11 SYNCIN 150 VCC1 GND1 GND1 Regurator output,connect to decupling capacitor internal use only. VCC1 12 REGOUT 24.5K 30K GND1 GND1 Ver.3 - 20 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Chroma signal input,300mVP-P CIN=GND:Composite input mode INSIDE EQIVALENT CIRCUIT VCC1 5K 13 CIN 200 GND1 GND1 Connect to ACC filter. VCC1 500 14 ACCDET 500 60K 500 GND1 Adjust the frequency with internal filter. VCC1 15 FADJ 6K 6K 6K GND1 GND1 Connect to the color killer filter. VCC1 21.5K 16 KILLER 1.2K GND1 GND1 Ver.3 - 21 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the burst cleaning coil at PAL selection. NTSC selection:open 1.8K INSIDE EQIVALENT CIRCUIT VCC1 17 CLEAN ING 200 GND GND1 Connect to the ident filter at PAL selection. NTSC selection:open VCC1 21.5 K 18 IDENT 1.2K GND GND1 Adjust Hue signal. Adjustable Hue range:45deg to control DC supply. TINT=GND:PAL mode =High:NTSC mode 19 TINT 200 VCC1 25K 35K 40K GND1 GND1 Adjust color. Adjust the tint color by input voltage. 60K VCC1 20 COLOR 200 24K 40K GND1 40K GND1 Ver.3 - 22 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Adjust the BY de-modulator axis. Adjust the de-modulation angle to 90 degree at PAL. NTSC selection:open PAL PHASE INSIDE EQIVALENT CIRCUIT VCC1 21.5 K 40K 21 200 79.5K GND1 GND1 VCXO input at NTSC. VCC1 5K 10K 500 10K 10K 500 22 VCXOIN (NTSC) GND1 VCXO output at NTSC. VCC1 23 VCXO OUT (NTSC) 4K GND1 GND1 Connect to the APC detector filter. VCC1 18K 24 APC GND1 GND1 Ver.3 - 23 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION VCXO input at PAL. VCC1 5K 10K 500 10K 10K 500 INSIDE EQIVALENT CIRCUIT 25 VCXOIN (PAL) GND1 VCXO output at PAL. VCC1 26 VCXO OUT (PAL) 4K GND1 GND1 Adjust the frequency of Y-signal for revise outline of Y-signal. Emphasize outline,when voltage increase. VCC1 27K 27 PICTURE 200 33K 28K GND1 GND1 Composite video signal / Y-signal input. CIN (6pin) =GND:Composite input mode. VCC1 28 VIDEO IN GND1 GND1 Ver.3 - 24 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the ceramic condenser (100pF) or TRAP filter for Y/C separate. INSIDE EQIVALENT CIRCUIT VCC1 29 TRAP 300 250 10K GND1 GND1 Supply voltage,+5V Connect to +5V supply 30 VCC1 Adjust the gain of RGB signal. Adjust the RGB signal range by CONTRAST input voltage. VCC1 VCC 40K 50K 20K 31 CONT RAST 200 GND1 Same as above GND1 Same as above Connect to the CLAMP pedestal level of B signal. Leakless capacitor for use. VCC1 32 GA CLAMPB GND1 GND1 Ver.3 - 25 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION External B(RGB) signal input, 700mVP-P and source color signal. INSIDE EQIVALENT CIRCUIT VCC1 33 EXTINB GND1 GND1 Connect to the CLAMP pedestal level of G signal. Leakless capacitor for use. VCC1 34 GA CLAMPG GND1 GND1 External G(RGB) signal input, 700mVP-P and source color signal. VCC1 35 EXTING GND1 GND1 Connect to the CLAMP pedestal level of R signal. Leakless capacitor for use. VCC1 36 GA CLAMPR GND1 GND1 Ver.3 - 26 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION External R(RGB) signal input, 700mVP-P and source color signal INSIDE EQIVALENT CIRCUIT VCC1 37 EXTINR GND1 GND1 Adjust the first point of low side in RGB characteristic. Pre-set and controlled RGB together. VCC1 44K 50K 35K 300 300 VCC1 38 VG1 200 40K GND1 GND1 Same as above Same as above Adjust the first point of high side in RGB characteristic. Pre-set and controlled RGB together. VCC VCC1 44K 30K 10K 300 300 39 VG2 40K 200 GND1 Same as above GND1 Same as above Adjust the second point of low side in R signal characteristic. Pre-set and not controlled RGB together,adjust the R signal only. VCC1 40K 44K 40 SUBVG1R 200 40K 70K 40K GND1 GND1 Ver.3 - 27 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Adjust the second point of low side in B signal characteristic. Pre-set and not controlled RGB together,adjust the B signal only. 41 SUBVG1B INSIDE EQIVALENT CIRCUIT VCC1 40K 44K 200 40K 70K 40K GND1 GND1 Adjust the second point of high side in R signal characteristic. Pre-set and not controlled RGB together,adjust the R signal only. 42 SUBVG2R VCC1 40K 44K 200 40K 40K 40K GND1 GND1 Adjust the second point of high side in B signal characteristic. Pre-set and not controlled RGB together,adjust the B signal only. 43 SUBVG2B VCC1 40K 44K 200 40K 40K 40K GND1 GND1 Control signal input with both black side of moniter,when aspect ratio change 4:3 and 16:9. SIDEBLACK=High:Black level SIDEBLACK=Low or OPEN:Through RGB signal is controlled together. 44 SIDE BLACK 200 30K 36K GND1 30K 36K VCC1 30K 36K GND1 Ver.3 - 28 - NJM2527 s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Adjust the bright of RGB signal,controlled black level. INSIDE EQIVALENT CIRCUIT VCC1 VCC1 10 75 45 BRIGHT 200 GND Same as above GND1 Same as above RGB output Supply voltage,+5V Connect to +5V supply. VCC2 VCC1 46 VCC2 Connect to the capacitor for R signal center modulator. Leakless capacitor for use. VCC2 5K 47 RDET 200 GND1 GND2 R signal output. VCC2 48 ROUT 250 GND2 GND1 32K Ver.3 - 29 - NJM2527 s PIN FUNCTION at NO USE No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 SYMBOL GDET GOUT BDET BOUT FRP GND1 SW YCLAMP HSYIN SYNCOUT SYNCIN REGOUT CIN ACCDET FADJ KILLER CLEANING IDENT TINT COLOR PALPHASE VCXOIN (NTSC) VCXOOUT (NTSC) APC FUNCTION Connect to capacitor for demodulate G signal OPEN Connect to capacitor for demodulate B signal OPEN Input inverting pulse of RGB output GND OPEN: composite mode only OPEN Connects to external synchronous Signal without fail. OPEN Synchronous signal input Connect to capacitor without fail. GND: when composite signal input OPEN: other OPEN Connect with 12K OPEN OPEN OPEN NTSC MODE: 1.6V or higher voltage PAL MODE: GND OPEN OPEN OPEN OPEN OPEN No 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SYMBOL VCXOIN (PAL) VCXOOUT (PAL) PICTURE VIDEOIN TRAP VCC1 CONTRAST GACLAMPB EXTINB GACLAMPG EXTING GACLAMPR EXTINR VG1 VG2 SUBVG1R SUBVG1B SUBVG2R SUBVG2B SIDEBLACK BRIGHT VCC2 RDET ROUT OPEN OPEN OPEN Connect with 0.01uF to GND OPEN Supply voltage (+5V) Input fixed DC voltage Connect to clamp capacitor OPEN Connect to clamp capacitor OPEN Connect to clamp capacitor OPEN Input fixed DC voltage Input fixed DC voltage OPEN OPEN OPEN OPEN OPEN Input fixed DC voltage Supply voltage (+5V VCC1) Connect to capacitor for demodulate R signal GND FUNCTION Ver.3 - 30 - NJM2527 s None-use PIN Connection 1). Do not use composite mode demodulator. Color demodulate system: 14pin, 16-18pin ,20pin and 22-26pin are OPEN. NTSC: 19pin connect to the DC voltage of 1.6V over. PAL: 19pin connect to GND. Brightness signal processing system: 28pin connect with 0.01uF to GND. 29pin, 8pin ,27pin are OPEN. 2). Do not use composite mode NTSC demodulator. 22pin, 23pin are OPEN. 19pin connect to GND. 3). Do not use composite mode PAL demodulator. 17pin, 18pin, 25pin,26pin and 21pin are OPEN. 19pin connect to the DC voltage of 1V over. 4). Do not use external analog RGB input. 7pin, 33pin, 35pin and 37pin are OPEN. 5). Do not use synchronous signal processor. Because it is necessary to produce BGP and Clamp Pulse in IC, please use a synchronous signal processing circuit without fail. 6). Do not use the other SYNC IN terminal. SYNC signal input 11pin. Please do not 11pin and 9pin openly. 7). Do not use C-SYNC output. 10pin is OPEN. 8). Do not use the adjust terminal of interface and Gamma circuit. As for 31pin, 38pin, 39pin, 45pin, please input DC voltage of request without fail. 40-43pin are OPEN. 9). Do not use SIDE BLACK circuit. 44pin is OPEN. Ver.3 - 31 - NJM2527 s FUNCTION DESCRIPTION 1. Synchronous Mode The composite signal or synchronous signal input to pin-11 (SYNCIN). The signal that was input to pin-11 (SYNCIN) is separated synchronous. The pin-9 (HSYIN) input external synchronous signal without fail. In the case that HSY (Horizontal synchronous pulse) is not input, NJM2527 does not do a normal action, because inside clamp pulse does not generate. 2. Color Signal Play Mode 1) ACC Circuit (Automatic Chroma Control) The chroma signal input to pin-13 (CIN), and detect the burst-signal through the HPF circuit, and controlled stable burst-signal feedback from demodulate output. When the pin-13 is GND level, the mode is composite input, and pin-28 (VIDEOIN) composite-video signal input to ACC circuit. 2) APC Circuit, and VCXO (Automatic Phase Control) The burst signal level of chroma is constant by ACC circuit. The PLL circuit consists of VCXO and locked burst signal. The pin-19 (TINT) input DC voltage adjust the VCXO phase, and adjust the demodulate axis. When the pin-19 is GND, the mode is PAL, and only accepts analog RGB input. 3) Color Killer The chroma signal is output to demodulator when PLL locked, and the color killer is - 42dB(NTSC). 4) IDENT Circuit NJM2527 synchronizes to H-SYNC in PAL mode. And, the career is reversing 90-degree phases. IDENT circuit arranges the flip-flop polarity (that is driven by HD) and the color burst phase of the chroma signal that are input from 13-Pin (CIN). In the case that IDENT circuit does not act normally, Color-Killer acts, and the chroma signal is not output to de-modulator. 5) CLEANING Cleaning filter avoids receiving the influence of burst signal noise that is input to APC and ACC circuit by tuning circuit. Chroma phase can be adjusted by utilizing this cleaning filter. 6) Color Circuit This circuit adjusts the color TINT. The pin-20 (COLOR) adjusts the chroma signal range from ACC circuit. This signal demodulator without burst signal by burst gate pulse (BGP). 7) DEMOD This DEMOD circuits demodulate color differential signal after the ACC circuit. The RGB signal consists of color differential and Y signal by matrix circuit, and input to Int./Ext. signal switches. 3. Y-signal Mode 1) TRAP The composite video signal input to pin-28 (VIDEOIN) without the chroma by TRAP circuit. The TPAP frequency is 3.58MHz or 4.43MHz, and not through when Y/C input mode. 2) Picture Circuit The Y/composite-signal input to pin-28 (VIDEOIN) without the synchronous signal. The pin-27 (PICTURE) adjusts the frequency characteristic around 2MHz and emphasizes the outline. The pin-27 level emphasizes outline depend on the DC voltage. includes second differential circuit. 4. INT./EXT. Signal Switch Mode The analog RGB signal (0.7VP-P typ.) input to pin-37, pin-35, and pin-33, and these signal clamps pedestal. The ext-signal select Y/C-signal or Int-signal by pin-7 (SW). Ver.3 - 32 - NJM2527 5. RGB Signal Mode 1) Contrast The pin-31 (CONTRAST) adjusts the all of RGB signal, which is black-to-white range. 2) Gamma Amplifier This circuit is non-liner amplifier to adjust the RGB signal equal to the luminous gamma characteristics. There is two-point adjustment for accurate correction. The pin-38 (VG1) adjusts low side, and the pin-39 (VG2) adjusts high side. Input Signal VG1 adjust VG2 adjust 3) Sub Gamma Circuit This circuit adjusts gamma characteristics of B/R signal, and sub gamma adjusts white-balance for the monitor. The pin-40 (SUBVG1R) and pin-42 (SUBVG2R) adjust low side with R-signal and high side with gamma characteristics. The pin-41 (SUBVG1B) and pin-43 (SUBVG2B) adjust low side with B-signal and high side for gamma characteristics. These terminal controls R-signal and B-signal separately. 4) Bright The pin-45 (BRIGHT) clamps the pedestal after the brightness adjustment (black to black). 5) Side Black The side-black circuit output black level, when the mode is black mask for wide picture. The RGB signal is black level when pin-44 (SIDEBLACK) input signal is low period only. 6) Output Amplifier The pin-5 (FRP) input to the timing pulse with inverting RGB output, and output the inverting RGB signal per every 1H. The RGB outputs are: FRP-High: Non-inverting output FRP-Low: Inverting output The center voltage is preset to half of Vcc2. Yin FRP RGB output Vcenter Ver.3 - 33 - NJM2527 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver.3 - 34 - |
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