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| NJM2573 LOW VOLTAGE 3ch VIDEO AMPLIFIER WITH LPF s GENERAL DESCRIPTION The NJM2573 is a Low Voltage 3ch Video Amplifier with LPF. Internal 75 driver is easy to connect TV monitor directly. The NJM2573 corresponds to a clamp and bias inputs, and selection of a clamp/ bias is possible for one circuit, and it corresponds to various video signals. The NJM2573 features low power and small package, and is suitable for low power design on downsizing of DVC. sFEATURES q Operating Voltage q Input type s PACKAGE OUTLINE NJM2573V 2.8 to 5.5V Vin1: CLAMP Vin2: CLAMP/ BIAS Vin3: BIAS q Internal LPF q Internal 6dB amplifier q Internal 75 Driver Circuit (2-system drive) q Internal Power Saving Circuit q Bipolar Technology q Package Outline SSOP14 sBLOCK DIAGRAM V+ V+ 6dB Vin1 CLAMP 6dB Vin2 CLAMP/BIASSW CLAMP BIAS 6dB Vin3 BIAS LPF LPF LPF 75driver Vout1 Vsag1 75driver Vout2 Vsag2 75driver Vout3 GND Power Save GND Ver.3 -1- NJM2573 sPIN CONFIGURATION SSOP14 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1. Vsag1 + 2. V 1 3. Vin1 4. Power Save 5. Vin2 6. GND1 7. Vin3 8. CLAMP/BIAS SW 9. Vout3 10. GND2 11. Vout2 12. Vsag2 + 13. V 2 14. Vout1 Ver.3 -2- NJM2573 sABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL + Supply Voltage V Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg RATINGS 7.0 300 -40 to +85 -40 to +125 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 SYMBOL Vopr ICC Isave Vomv Vom RGB Gv No Signal Power Save Mode f=1kHz,THD=1%, CLAMP Input f=1kHz,THD=1%, BIAS Input TEST CONDITION MIN. 2.8 2.2 1.4 6.0 -0.5 TYP. 3.0 18.0 60 2.4 2.2 6.4 0.0 -2.0 -12 -65 0.2 0.2 +60 MAX. 5.5 26.0 90 Vp-p 6.8 +0.5 dB % deg dB dB dB UNIT V mA uA + Low Pass Filter Characteristic Cross talk Differential Gain Differential Phase S/N Ratio 2nd. Distortion SW Change Voltage High Level SW Change Voltage Low Level Vin=100kHz, 1.0Vp-p,Sin Signal (CLAMP) Vin=100kHz 0.7Vp-p,Sin Signal (BIAS) Vin=4.5MHz/100kHz, 1.0Vp-p(CLAMP) Gfy4.5M Vin=4.5MHz/100kHz, 0.7Vp-p(BIAS) Vin=8MHz/100kHz, 1.0Vp-p(CLAMP) Gfy8M Vin=8MHz/100kHz, 0.7Vp-p(BIAS) Vin=16MHz/100kHz, 1.0Vp-p(CLAMP) Gfy16M Vin=16MHz/100kHz, 0.7Vp-p(BIAS) Vin=4.43MHz, 1.0Vp-p,Sin Signal (CLAMP) CT Vin=4.43MHz 0.7Vp-p,Sin Signal (BIAS) (CLAMP) Vin=1.0Vp-p DG Input 10step Video Signal (CLAMP) Vin=1.0Vp-p DP Input 10step Video Signal (CLAMP) Vin=1.0Vp-p,100% White Video Signal SNv (BIAS) Vin=0.7Vp-p,100% Red field Signal (CLAMP) Vin=1.0Vp-p, 3.58MHz, Sin Signal, RL=75 Hv (BIAS) Vin=0.7Vp-p, 3.58MHz, Sin Signal, RL=75 VthPH VthPL - -40 + dB 1.8 0 - V V 0.3 sCONTROL TERMINAL PARAMETER Power Save STATUS H L OPEN H CLAMP/BIAS SW L OPEN Power Save: ON Power Save: OFF Power Save: OFF BIAS CLAMP CLAMP NOTE Ver.3 -3- NJM2573 s TEST CIRCUIT V+ 0.1u + 10u 33u + 33u 1 Vsag1 Vout1 14 + 75 75 out2-1 out2-2 2 0.1u in1 75 Vps 4 0.1u in2 75 10u 6 0.1u in3 75 + + + V+1 V+2 13 33u 3 Vin1 Vsag2 12 + NJM2573V 33u Power Save Vout2 11 + 75 75 out2-1 out2-2 5 Vin2 GND2 10 75 75 GND1 Vout3 9 + out3-1 out3-2 7 Vin3 C/B SW 8 Vsw Ver.3 -4- NJM2573 sEQUIVALENT CIRCUIT PIN No. PIN NAME FUNCTION INSIDE EQUIVALENT CIRCUIT V+ 270 270 3 VIN1 Clamp input Vin1 GND SW 32k 4 Power Save Power save 48k GND V+ 270 270 5 Vin2 Clamp/Bias input Vin2 20k 270 GND 6 NC GND1 Non connection GND V+ 20k Vin3 270 7 Vin3 Bias input GND Ver.3 -5- NJM2573 PIN No. PIN NAME FUNCTION INSIDE EQUIVALENT CIRCUIT SW 32k CLAMP/ 8 BIAS SW Clamp/Bias switch 48k GND V+ 9 Vout3 Bias output 8.8k Vout3 GND 10 GND2 GND V+ 11 Vout2 Clamp/Bias output 8.8k 750 Vout2 GND V+ 12 Vsag2 Sag compensation 8.8k 750 Vsag2 GND + 13 V2 Power Supply Ver.3 -6- NJM2573 PIN No. PIN NAME FUNCTION INSIDE EQUIVALENT CIRCUIT V+ 14 Vout1 Clamp output 8.8k 750 Vout1 GND V+ Vsag1 1 Vsag1 Sag compensation 8.8k 750 GND 2 s APPLICATION NC V1 + Non connection Power Supply When the power supply voltage is not impressing, please don't impress voltage to the control terminal. Ver.3 -7- NJM2573 sTYPICAL CHARACTERISTICS Voltage Gain vs. Frequency Vin=1.0Vpp 10 0.0 -10 Gv[dB] -20 -30 1ch 2ch_clamp 2ch_bias 3ch 10 5 -40 10 6 10 7 10 8 Frequency[Hz] [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 -8- |
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