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| NJM2574 LOW VOLTAGE VIDEO AMPLIFIER WITH LPF sGENRERAL DESCRIPTION The NJM2574 is a Low Voltage Video Amplifier contained LPF circuit, 75 driver and internal CLAMP/BIAS SW, LPF/through SW to connect TV monitor directly. The input composite signal.(0.5Vpp) The mute circuit with power save function is suitable for low power design. The NJM2574 is suitable for down sizing of Digital Steel Camera, and DVC for small package. sPACKAGE OUTLINE NJM2574RB1 sFEATURES q Operating Voltage q Input Composite Signa q Output Swing q Internal CLAMP/BIAS SW q Internal LPF/through SW q Operating Current q Operating Current in Battery Saving q 75 2 system Drive q Bipolar Technology q Package Outline TVSP8 2.8 to 5.5V 0.5Vpp 2.4Vpp typ. at Vcc=3V,CLAMP MODE 9.0mA typ. at Vcc=3.0V 70uAtyp. at Vcc=3.0V sBLOCK DIAGRAM LPF/Through SW 1 V+ 5 Vin 6 CLAMP/BIAS 8 SW CLAMP BIAS 12dB LPF 75Driver 4 Vout 3 Vsag 2 7 GND Power Save -1- NJM2574 sABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL + Supply Voltage V Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg + RATINGS 7.0 320 -40 to +85 -40 to +125 (Ta=25C) UNIT V mW C C sELECTRICAL CHARACTERISTICS ( V =3.0V,RL=150,Ta=25C) PARAMETER Operating Voltage Operating Current Operating Current at Power Save Maximum Output Voltage Swing Voltage Gain Frequency Characteristic (Through MODE) Low Pass Filter Characteristic SYMBOL Vopr ICC Isave Vomv Vom RGB Gv Gf No Signal Power Save Mode f=1kHz,THD=1%,CLAMP MODE LPF MODE f=1kHz,THD=1%, BIAS MODE, through MODE Vin=100kHz,0.5Vp-p, Input Sine Signal Vin=20MHz/100kHz,0.5Vp-p TEST CONDITION MIN. 2.8 2.2 1.4 12.0 -6.0 -0.95 1.8 0 TYP. 3.0 9.0 70 2.7 2.0 12.4 -3.0 -0.45 -3.0 -23 0.5 0.5 +60 -60 MAX. 5.5 10.0 90 Vp-p 12.8 0.05 -17 V + UNIT V mA uA dB dB Gfy4.5M Vin=4.5MHz/100kHz,0.5Vp-p Gfy8M Vin=8MHz/100kHz,0.5Vp-p Gfy23.5M Vin=23.5MHz/100kHz,0.5Vp-p Vin=0.5Vp-p, DG Input 10step Video Signal Vin=0.5Vp-p, DP Input 10step Video Signal Vin=0.5Vp-p, SNv 100% White Video Signal, RL=75 Band Width 100kHz to 6MHz Vin=0.5Vp-p, 3.58MHz, Hv Sine Video Signal, RL=75, VthH VthL dB Differential Gain Differential Phase S/N 2nd. Distortion SW Change Voltage High Level SW Change Voltage Low Level % deg dB dB V 0.3 s CONTROL TERMINAL PARAMETER Power Save(7pin) STATUS H L OPEN H LPF/Through SW(1pin) L OPEN Power Save : OFF Power Save : ON Power Save : ON LPF MODE Through MODE Through MODE NOTE -2- NJM2574 sTEST CIRCUIT Vin Power save 0.1uF CLAMP/BIAS SW 8 7 6 75 V+ 5 + 10uF 0.1uF NJM2574 1 2 GND LPF/Through SW 3 + 22uF Vsag 4 + 100uF 75 Vout 75 sAPPLICATION CIRCUIT Vin Power save 75 + 10uF V 8 7 6 + Vin Power save 75 + 10uF V+ 5 0.1uF CLAMP/BIAS SW 5 0.1uF 8 7 6 CLAMP/BIAS SW 0.1uF 0.1uF NJM2574 1 2 GND 3 + 33uF Vsag 4 + 33uF 1 NJM2574 2 GND Vsag 3 + 33uF 4 + 100uF 75 LPF/Through SW 75 75 LPF/Through SW Vout Vout2 Vout1 752system Drive -3- NJM2574 s TYPICAL CHARACTERISTICS Voltage Gain vs. Freqency 20 10 Voltage Gain Gv(dB) 0 -10 -20 -30 -40 100 103 Clamp+LPF Bias+Through 1 106 Frequency(Hz) 10 106 Voltage Gain vs. Freqency (Clamp+LPF Input) 20 10 Voltage Gain Gv(dB) Voltage Gain Gv(dB) 0 -10 -20 -30 -40 100 103 Voltage Gain vs. Freqency (Bias+Through Input) 20 10 0 -10 -20 -30 -40 100 103 1 106 Frequency(Hz) 10 106 1 106 Frequency(Hz) 10 106 Operating Current vs. Supply Voltage Operating Current at Standby State Isave(uA) 12.0 Operationg Current Icc(mA) Operating Current at Standby State vs. Supply Voltage 120.0 100.0 80.0 60.0 40.0 20.0 0.0 2.0 10.0 8.0 6.0 4.0 2.0 2.0 3.0 4.0 5.0 6.0 + 7.0 8.0 3.0 4.0 5.0 6.0 + 7.0 8.0 Supply Voltage V (V) Supply Voltage V (V) -4- NJM2574 s TYPICAL CHARACTERISTICS Maximum Output Voltage Swing vs. Supply Voltage (Clamp+LPF Type Input) Maximum Output Voltage Swing Vomv(Vpp) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 2.0 Total Harmonic Distortion=1%, 1kHz Vin Vomv Maximum Output Voltage Swing vs. Supply Voltage (Bias+Through Type Input) Maximum Output Voltage Swing VomRGB(Vpp) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 2.0 Total Harmonic Distortion=1%, 1kHz Vin VomRGB 3.0 4.0 5.0 6.0 + 7.0 8.0 3.0 4.0 5.0 6.0 + 7.0 8.0 Supply Voltage V (V) Supply Voltage V (V) Voltage Gain vs. Supply Voltage 0.5Vpp, 100kHz sinewave signal input 14.0 13.5 Voltage Gain Gv(dB) 13.0 12.5 12.0 11.5 11.0 2.0 Gain Frequency Characteristics vs. Supply Voltage (Bias+Through Type Input) 0.5Vpp, 20MHz/100kHz Gain Frequency Characteristics Gf(dB) 0.0 -2.0 -4.0 -6.0 -8.0 -10.0 2.0 3.0 4.0 5.0 6.0 + 7.0 8.0 3.0 4.0 5.0 6.0 + 7.0 8.0 Supply Voltage V (V) Supply Voltage V (V) Low Pass Filter Characteristic 1 vs. Supply Voltage (Clamp+LPF Type Input) 1.0 LPF Characteristic 1 Gfy4.5M(dB) 0.5 0.0 -0.5 -1.0 -1.5 -2.0 2.0 0.5Vpp, 4.5MHz/100kHz Low Pass Filter Characteristic 2 vs. Supply Voltage (Clamp+LPF Type Input) 0.5Vpp, 8MHz/100kHz LPF Characteristic 2 Gfy8M(dB) 0.0 -2.0 -4.0 -6.0 -8.0 -10.0 2.0 3.0 4.0 5.0 6.0 + 7.0 8.0 3.0 4.0 5.0 6.0 + 7.0 8.0 Supply Voltage V (V) Supply Voltage V (V) -5- NJM2574 s TYPICAL CHARACTERISTICS Low Pass Filter Characteristic 3 vs. Supply Voltage (Clamp+LPF Type Input) 0.5Vpp, 23.5MHz/100kHz LPF Characteristic 3 Gfy23.5M(dB) -16.0 -18.0 Differential Gain vs. Supply Voltage 0.5Vpp, 10step video signal input 4.0 3.5 Differential Gain DG(%) 3.0 2.5 2.0 1.5 1.0 0.5 -20.0 -22.0 -24.0 -26.0 -28.0 -30.0 -32.0 2.0 3.0 4.0 5.0 6.0 + 7.0 8.0 0.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Supply Voltage V (V) Supply Voltage V+(V) Differential Phase vs. Supply Voltage 0.5Vpp, 10step video signal input 4.0 3.5 Differential Phase DP(deg) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2.0 3.0 4.0 5.0 6.0 + Signal to Noise Ratio vs. Supply Voltage 0.5Vpp, 100% white video signal input, 100kHz-6MHz 100.0 Signal to Noise Ratio SNv(dB) 90.0 80.0 70.0 60.0 50.0 40.0 2.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 8.0 Supply Voltage V (V) Supply Voltage V+(V) Second Harmonic Distortion vs. Supply Voltage 0.5Vpp, 3.58MHz sinewave signal input -20.0 Second Harmonic Distortion Hv(dB) -30.0 -40.0 -50.0 -60.0 -70.0 -80.0 -90.0 -100.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Switching Voltage vs. Supply Voltage 2.0 VthH VthL Switching Voltage Vth(V) 1.5 1.0 0.5 0.0 2.0 3.0 4.0 5.0 6.0 + 7.0 8.0 Supply Voltage V+(V) Supply Voltage V (V) -6- NJM2574 s TYPICAL CHARACTERISTICS PowerSave Switching Voltage vs. Supply Voltage PowerSave Switching Voltage VthP(V) 2.0 VthPH VthPL Operating Current vs. Temperature 11.0 Operationg Current Icc(mA) 10.0 9.0 8.0 7.0 6.0 5.0 1.5 1.0 0.5 0.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 -40 0 40 80 o 120 Supply Voltage V+(V) Ambient Temperature Ta( C) Operating Current at Standby State Isave(uA) 100.0 Maximum Output Voltage Swing Vomv(Vpp) Operating Current at Standby State vs. Temperature Maximum Output Voltage Swing vs. Temperature (Clamp+LPF Type Input) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 Total Harmonic Distortion=1%, 1kHz 80.0 60.0 40.0 20.0 0.0 -40 0 40 80 o 120 -40 0 40 80 o 120 Ambient Temperature Ta( C) Ambient Temperature Ta( C) Maximum Output Voltage Swing vs. Temperature (Bias+Through Type Input) Maximum Output Voltage Swing VomRGB(Vpp) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 Total Harmonic Distortion=1%, 1kHz Gain Frequency Characteristics vs. Temperature (Bias+Through Type Input) 0.5Vpp, 20MHz/100kHz Gain Frequency Characteristics Gf(dB) 0.0 -2.0 -4.0 -6.0 -8.0 -10.0 -40 0 40 80 o 120 -40 0 40 80 o 120 Ambient Temperature Ta( C) Ambient Temperature Ta( C) -7- NJM2574 s TYPICAL CHARACTERISTICS Low Pass Filter Characteristic 1 vs. Temperature (Clamp+LPF Type Input) 1.0 LPF Characteristic 1 Gfy4.5M(dB) 0.5 0.0 -0.5 -1.0 -1.5 -2.0 0.5Vpp, 4.5MHz/100kHz Low Pass Filter Characteristic 2 vs. Temperature (Clamp+LPF Type Input) 0.5Vpp, 8MHz/100kHz 0.0 LPF Characteristic 2 Gfy8M(dB) -2.0 -4.0 -6.0 -8.0 -10.0 -40 0 40 80 o 120 -40 0 40 80 o 120 Ambient Temperature Ta( C) Ambient Temperature Ta( C) Low Pass Filter Characteristic 3 vs. Temperature (Clamp+LPF Type Input) 0.5Vpp, 23.5MHz/100kHz LPF Characteristic 3 Gfy23.5M(dB) -16.0 -18.0 Differential Gain vs. Temperature 0.5Vpp, 10step video signal input 4.0 3.5 Differential Gain DG(%) 3.0 2.5 2.0 1.5 1.0 0.5 -20.0 -22.0 -24.0 -26.0 -28.0 -30.0 -32.0 -40 0 40 80 120 0.0 -40 0 40 80 o 120 Ambient Temperature Ta(oC) Ambient Temperature Ta( C) Differential Phase vs. Temperature 0.5Vpp, 10step video signal input 4.0 Signal to Noise Ratio SNv(dB) Signal to Noise Ratio vs. Temperature 0.5Vpp, 100% white video signal input, 100kHz-6MHz 100.0 90.0 80.0 70.0 60.0 50.0 40.0 3.5 Differential Phase DP(deg) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -40 0 40 80 120 -40 0 40 80 o 120 Ambient Temperature Ta(oC) Ambient Temperature Ta( C) -8- NJM2574 s TYPICAL CHARACTERISTICS Second Harmonic Distortion vs. Temperature 0.5Vpp, 3.58MHz sinewave signal input -20.0 Second Harmonic Distortion Hv(dB) -30.0 Switching Voltage vs. Temperature 2.0 VthH VthL Switching Voltage Vth(V) -40 0 40 80 o -40.0 -50.0 -60.0 -70.0 -80.0 -90.0 -100.0 120 1.5 1.0 0.5 0.0 -40 0 40 80 o 120 Ambient Temperature Ta( C) Ambient Temperature Ta( C) PowerSave Switching Voltage vs. Temperature PowerSave Switching Voltage VthP(V) 2.0 VthPH VthPL 1.5 1.0 0.5 0.0 -40 0 40 80 o 120 Ambient Temperature Ta( C) -9- NJM2574 s APPLICATION When you use a power save terminal more than by 4.0V, please put resistance of about 20k into a power save terminal. I n addition, power save terminal voltage (VthH) -- in the case of below 4.0V, resistance is not required Example) q PS(VthH) 4.0V q PS(VthH) < 4.0V Power Save PS r VthH 4.0V r 20k Power Save VthH < 4.0V V (VthH) PS V (VthH) [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. - 10 - |
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