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NJM2570A
75 Driver with Filter and Y/C MIX
s GENERAL DESCRIPTION NJM2570A is a video amplifier included LPF in Y and C system. Adjustable LPF characteristic with external resistor and output with 75ohm driver optimize the TV monitor system. Also, it can discriminated the aspect ratio of TV by internal DC interface for S terminal. NJM2570A includes power save circuit to suitable for portable video application. s PACKAGE OUTLINE
NJM2570AV
s FEATURES q Operating Voltage 4.5 to 5.5V q Input Y and C 0.5Vpp q Internal LPF 0dBtyp. at 4MHz (at IREF=33k) -35dBtyp. at 10MHz (at IREF=33k) 0dBtyp. at 6MHz (at IREF=22k) -40dBtyp. at 16MHz (at IREF=22k) q Internal DC Interface for aspect ratio discrimination q Bipolar technology q Package Outline SSOP16 s BLOCK DIAGLAM
V+1 V+2
s PIN CONFIGURATION
1 16
8
9
1. Cin 2. GND 3. SDCin 4. SDCout 5. Cout 6. Vout 7. Vsag 8. GND2 9. V+2 10. Ysag 11. Yout 12. VREF 13. POWERSAVE 14. Yin 15. V+1 16. IREF
15
9
Yin
14
CLAMP
6dB
LPF 6dB
6dB
11
Yout
10
Ysag
6dB
6
Vout
7 12dB
Vsag
Cin
1
HPF
BIAS
LPF
12dB
5
Cout
SDCin
3
6dB 4 SDCout
voltage reference current referrence
comparator
13 PowerSave
12 VREF
16 IREF
2 GND1
8 GND2
-1Ver.2
NJM2570A
s ABSOLUTE MAXIMUM RATINGS(Ta=25C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL V+ PD Topr Tstg RATINGS 7.0 300 -40 to +85 -40 to +125 UNIT V mW C C
s RECOMMENDED OPEARATING CONDITION(Ta=25C) PARAMETER Operating Voltage 1 Operating Voltage 2 SYMBOL Vopr1 Vopr2 RATINGS V1 V+2
+
MIN. 4.5 4.5
TYP. MAX. UNIT 5.0 5.5 V 5.0 5.5 V
-2Ver.2
NJM2570A
s ELECTRICAK CHARACTERISTICS (V+1=V+2=5.0V,Powersave=1.8V, IREF=22k,SDCin=open, SDCout=100k, RL=150, Input=ACgnd(75 to GND),Ta=25C at non-designation) PARAMETER Operating Circuit 1 Operating Circuit 2 Operating Circuit 1 at Power Save Operating Circuit 2 at Power Save Voltage Gain 1(Y Signal) Voltage Gain Difference 1 (Y Signal) Voltage Gain 1(C Signal) Voltage Gain Difference 2 (C Signal) Voltage Gain 1(V Signal) SYMBOL ICC1 ICC2 Isave1 Isave2 Gvy Gvyv Gvc Gvcv Gvv Gfy1-1 Frequency Characteristics (Y Signal) Gfy1-2 Gfy2-1 Gfy2-2 Gfc1-1 Gfc1-2 Gfc1-3 Frequency Characteristics (C Signal) Gfc2-1 Gfc2-2 Gfc2-3 Gfc3 *1 Y/C Delay1 *1 Y/C Delay2 *1 Y Group Delay1 *1 Y Group Delay2 *1 C Group Delay1 *1 C Group Delay2 TdYC1 TdYC2 TdY1 TdY2 TdC1 TdC2
+ +
TEST CONDITION V 1=5.0V, No signal V 2=5.0V, No signal V+1=5.0V, Power Save Mode V+2=5.0V, Power Save Mode Yin=100kHz,0.5Vpp Input Sign signal Yin=100kHz,0.5Vpp Input Sign signal, Measure the Gvv3=Vout/Yin. Gvyv=Gvv3-Gvy Cin=4.43MHz,0.15Vpp Input Sign signal Cin=4.43MHz,0.15Vpp Input Sign signal, Measure the Gvv2=Vout/Cin. Gvcv=Gvv2-Gvc Yin=100kHz,0.5Vpp Input Sign signal Yin=4MHz/100kHz, 0.5Vpp, Input Sine signal IREF=33k Yin=10MHz/100kHz, 0.5Vpp, Input Sign signal IREF=33k Yin=6MHz/100kHz, 0.5Vpp, Input Sine signal IREF=22k Yin=16MHz/100kHz, 0.5Vpp Input Sine signal, IREF=22k Cin=4.43MHz-500kHz, 0.15Vpp Input Sine signal, IREF=33k Cin=4.43MHz+500kHz, 0.15Vpp Input Sine signal, IREF=33k Cin=10MHz/4.43MHz, 0.15Vpp Input Sign signal, IREF=33k Cin=4.43MHz-500kHz, 0.15Vpp Input Sine signal, IREF=22k Cin=4.43MHz+500kHz, 0.15Vpp Input Sine signal, IREF=22k Cin=16MHz/4.43MHz, 0.15Vpp Input Sign Singal, IREF=22k Cin=1MHz/4.43MHz, 0.15Vpp Input Sign Signal, IREF=22k IREF=22k IREF=33k IREF=22k,4.43MHz,Sign Signal IREF=33k,4.43MHz,Sign Signal IREF=22k,4.43MHz,Sign Signal IREF=33k, 4.43MHz,Sign Signal
MIN. 12.0 -0.5 12.5 -0.5 12.0 -3.0 -3.0 -1.0 -5.0 -1.0 -1.0 -
TYP. 10 15 50 0 12.4 0 13.5 0 12.4 0 -35 0 -40 1.0 -2.0 -35 0 0 -40 -1.5 0 0 100 155 100 155
MAX. 18 25 120 120 12.9 +0.5 14.5 +0.5 12.9 1.0 -30
UNIT mA mA A A dB dB dB dB dB
dB 2.0 -30 3.0 1.0 -30 1.0 1.0 -30 ns ns ns ns ns ns dB
-3Ver.2
NJM2570A
s ELECTRICAK CHARACTERISTICS (V+1=V+2=5.0V,Powersave=1.8V, IREF=22k,SDCin=open, SDCout=100k, RL=150, Input=ACgnd(75 to GND),Ta=25C at non-designation) PARAMETER Maximum Output Voltage Swing 1(Y Signal) Maximum Output Voltage Swing 1(C Signal) Maximum Output Voltage Swing 1(V Signal) *1 Differential Gain(V) *1 Differential Phase(V) *1 Differential Gain(V) *1 Differential Phase(V) SW Change Voltage High Level for Power Save SW Change Voltage High Level for Power Save Crosstark 1(Yin to Cout) Crosstalk 2(Cin to Yout) *1 S/N1(Y Signal) *1 S/N2(C Signal) *1 S/N3(C Signal) *1 S/N4 (V Signal) *1 S/N5(CV Signal) *1 S/N6(CV Signal) Total Harmonics Distortion (Y Signal) Total Harmonics Distortion (V Signal) SYMBOL Voym Vocm Vovm DGy DPy DGv DPv VcH VcL CTyc CTcy SNy SNc SNc2 SNv SNv2 SNcv THDy THDv TEST CONDITION V+1=V+2=4.5V,Yin=100kHz, Sine Signal, THD=1%, RL=75 V+1=V+2=4.5V,Cin=4.43MHz, Sine Signal, THD=1%, RL=75 V+1=V+2=4.5V,Yin=100kHz, Sine Signal, THD=1%, RL=75 Yin=0.5Vpp,10Step video signal, measure the Yout. Yin=0.5Vpp,10Step video signal, measure the Yout. Yin=0.5Vpp,Cin=0.15V, 10Step video signal,measure the Vout. Yin=0.5Vpp,Cin=0.15V 10Step video signal,measure the Yout. Active Non-active Yin to Cout=20log(Cout/Yout) Yin=4.43MHz,0.5Vpp Sine Signal, Cin=AC GND Cin to Yout=20log(Yout/Cout) Cin=4.43MHz,0.15Vpp Sine Signal, Yin=AC GND Yin=50% White Video Signal, RL=75 at Yout Bandwidth 100kHz to 6MHz Cin=100% Red Field Video Signal, RL=75 at Cout Bandwidth 100Hz to 500kHz Cin=100% Red Field Video Signal, RL=75 at Cout Bandwidth 100Hz to 500kHz PM Noise Yin=50% White Video Signal, RL=75 at Vout Bandwidth 100kHz to 6MHz Cin=100% Red Field Video Signal, RL=75 at Cout Bandwidth 100Hz to 6MHz AM Noise Cin=100% Red Field Video Signal, RL=75 at Vout Bandwidth 100Hz to 6MHz PM Noise V+1=V+2=4.5V,IREF=22k, Yin=100kHz,0.5Vpp sing signal V+1=V+2=4.5V,IREF=22k, Yin=100kHz,0.5Vpp sign signal MIN. 1.2 1.05 1.2 1.8 0 55 55 59 53 63 59 TYP. 1.5 1.85 1.4 0.6 0.6 0.2 0.2 -50 -50 60 60 64 57 68 64 MAX. V+ 0.3 -40 -40 0.8 0.8 dB dB dB dB dB dB dB dB % % UNIT Vp-p Vp-p Vp-p % deg % deg V
-4Ver.2
NJM2570A
s ELECTRICAK CHARACTERISTICS (V+1=V+2=5.0V,Powersave=1.8V, IREF=22k,SDCin=open, SDCout=100k, RL=150, Input=ACgnd(75 to GND),Ta=25C at non-designation) PARAMETER *1 2nd. Distortion 1 (Y Signal) *1 2nd. Distortion 2 (C Signal) *1 2nd. Distortion 3 (V Signal) 2nd. Distortion 4(V Signal) SDC Voltage Gain SDC Maxim Output Voltage Threshold Voltage for SDC Output Impedance SDC Output Impedance SYMBOL Hy Hc Hv1 Hv2 Gv SDC Vom SDC VthR SDC RSDC TEST CONDITION Yin=1MHz,0.5Vpp, Sine Signal Cin=4.43MHz,0.15Vpp, Sine Signal Yin=1MHz,0.5Vpp, Sine Signal Yin=DC,Cin=4.43MHz, V+1=V+2=4.7V,Vout=1.275Vpp(Cout= 0.91Vpp in Vout) SDCin=1.0V,RL=100k RL=100k, V+1=V+2=4.5V *2 Change Guarantee for SDC High Impedance SDCout at High Impedance MIN. 5.5 3.6 140 TYP. -50 -50 -47 -50 6.0 220 MAX. -40 -40 -37 -40 6.5 0.3 275 UNIT dB dB dB dB dB V V k
*1 Limits are guaranteed by statistical analysis. *2 Reference to the TEST CIRCUIT.
s CONTROL TERMINAL PARAMETER Power Save CONTROL H L OPEN Power Save: OFF Power Save: ON Power Save: ON NOTES
-5Ver.2
NJM2570A
s TEST CIRCUIT
+ 0.1uF 33k 22k 50 75 10uF 75 Yout2 75 10uF 0.1uF Yin + + Yout1 + 12 11 100uF + 10 22uF 5V
16
15
14
13
0.1uF
9
IREF
V+1
Yin
POWER SAVE
VREF
Yout
Ysag
V+2
NJM2570A
Cin 1 GND1 2 SDCin 3 SDCout 4 Cout 5 + 100uF Vout 6 + 100uF Vsag 7 + 22uF Vout1 75 Cout2 75 75 Vout2 GND2 8
10k Cin 100k 50 75
SDCout
0.1uF
Cout1 75
-6Ver.2
NJM2570A
[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
-7Ver.2

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