NJM2570 PRELIMINARY 75Ω Ω Driver with Filer and Y/C MIX ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE NJM2570 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. NJM2570 includes power save circuit to suitable for portable video application. ■ FEATURES ● Operating Voltage 4.5 to 5.5V ● Input Y and C 0.5Vpp ● Internal LPF 0dBtyp. at 4MHz (at IREF=33kΩ) -35dBtyp. at 10MHz (at IREF=33kΩ) 0dBtyp. at 6MHz (at IREF=22kΩ) -40dBtyp. at 16MHz (at IREF=22kΩ) ● Internal DC Interface for aspect ratio discrimination ● Bipolar technology ● Package Outline SSOP16 NJM2570V ■ PIN CONFIGURATION 1 16 8 9 Yin 14 CLAMP 6dB V+1 V+2 ■ BLOCK DIAGLAM 15 9 LPF 6dB 6dB 6dB Yout 10 Ysag 6 Vout 7 Vsag 5 Cout 4 SDCout 6dB 11 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 Cin 1 SDCin 3 BIAS 6dB LPF 6dB 6dB voltage reference current referrence comparator 13 12 16 2 8 PowerSave VREF IREF GND1 GND2 -1Ver.1 NJM2570 PRELIMINARY ■ ABSOLUTE MAXIMUM RATINGS(Ta=25°C) 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 ■ RECOMMENDED OPEARATING CONDITION(Ta=25°C) PARAMETER Operating Voltage 1 Operating Voltage 2 SYMBOL Vopr1 Vopr2 RATINGS V+1 V+2 MIN. 4.5 4.5 TYP. MAX. UNIT 5.0 5.5 V 5.0 5.5 V ■ ELECTRICAK CHARACTERISTICS(V+1=V+2=5.0V,RL=150Ω,Ta=25°C, IREF=22kΩ 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) SYMBOL MIN. TYP. MAX. UNIT - 10 18 mA V 2=5.0V, No signal - 15 25 mA Isave1 V+1=5.0V, Power Save Mode - 50 120 µA Isave2 V+2=5.0V, Power Save Mode - 0 120 µA ICC1 ICC2 TEST CONDITION V+1=5.0V, No signal + Gvy Yin=100kHz,0.5Vpp Input Sign signal 12.0 12.4 12.9 dB Voltage Gain 1(C Signal) Gvc Cin=4.43MHz,0.15Vpp Input Sign signal 12.0 12.4 12.9 dB Voltage Gain 1(V Signal) Gvv Yin=100kHz,0.5Vpp Input Sign signal Yin=4MHz/100kHz, 0.5Vpp, Input Sine signal IREF=33kΩ Yin=10MHz/100kHz, 0.5Vpp, Input Sign signal IREF=33kΩ Yin=6MHz/100kHz, 0.5Vpp, Input Sine signal IREF=22kΩ Yin=16MHz/100kHz, 0.5Vpp Input Sine signal, IREF=22kΩ Cin=4.43MHz-500kHz, 0.15Vpp Input Sine signal, IREF=33kΩ Cin=4.43MHz+500kHz, 0.15Vpp Input Sine signal, IREF=33kΩ Cin=4.43MHz-500kHz, 0.15Vpp Input Sine signal, IREF=22kΩ Cin=4.43MHz+500kHz, 0.15Vpp Input Sine signal, IREF=22kΩ V+1=V+2=4.5V,Yin=100kHz, Sine Signal, THD=1%, RL=75Ω V+1=V+2=4.5V,Cin=4.43MHz, Sine Signal, THD=1%, RL=75Ω V+1=V+2=4.5V,Yin=100kHz, Sine Signal, THD=1%, RL=75Ω 12.0 12.4 12.9 dB -3.0 0 1.0 - -35 -30 -3.0 0 2.0 - -40 -30 -1.0 1.0 3.0 -5.0 -2.0 1.0 -1.0 0 1.0 -1.0 0 1.0 1.2 1.5 - Vp-p 1.05 1.85 - Vp-p 1.2 1.4 - Vp-p Active 1.8 - V+ Gfy1-1 Frequency Characteristics (Y Signal) Gfy1-2 Gfy2-1 Gfy2-2 Gfc1-1 Frequency Characteristics (C Signal) Gfc1-2 Gfc2-1 Gfc2-2 Maximum Output Voltage Swing 1(Y Signal) Maximum Output Voltage Swing 1(C Signal) Maximum Output Voltage Swing 1(V Signal) SW Change Voltage High Level for Power Save SW Change Voltage High Level for Power Save -2Ver.1 Voym Vocm Vovm VcH dB dB V VcL Non-active 0 - 0.3 NJM2570 PRELIMINARY + + ■ ELECTRICAK CHARACTERISTICS(V 1=V 2=5.0V,RL=150Ω,Ta=25°C, IREF=22kΩ at non-designation) PARAMETER SYMBOL 2nd. Distortion 1(Y Signal) Hy TEST CONDITION 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=75Ω at Yout Bandwidth 100kHz to 6MHz Cin=100% Red Field Video Signal, RL=75Ω at Yout Bandwidth 100Hz to 500kHz Yin=50% White Video Signal, RL=75Ω at Yout at Vout Bandwidth 100kHz to 6MHz Yin=1MHz,0.5Vpp, Sine Signal 2nd. Distortion 1(C Signal) Hc Cin=4.43MHz,0.15Vpp, Sine Signal - -50 -40 dB 2nd. Distortion 1(V Signal) Hv Gv SDC Vom SDC VthR SDC RSDC Yin=1MHz,0.5Vpp, Sine Signal - -50 -40 dB SDCin=1.0V,RL=100kΩ 5.5 6.0 6.5 dB RL=100kΩ, V+1=V+2=4.5V 3.6 - - V - - 0.3 V 165 220 275 kΩ Crosstark 1(Yin to Cout) CTyc Crosstalk 2(Cin to Yout) CTcy S/N1(Y Signal) SNy S/N2(C Signal) SNc S/N3(V Signal) SNv SDC Voltage Gain SDC Maxim Output Voltage Threshold Voltage for SDC Output Impedance SDC Output Impedance Change Guarantee for SDC High Impedance SDCout at High Impedance MIN. TYP. MAX. UNIT - -50 -40 dB - -60 -40 dB 55 60 - dB 55 60 - dB 53 57 - dB - -50 -40 dB ■ CONTROL TERMINAL PARAMETER Power Save CONTROL H L OPEN NOTES Power Save: OFF Power Save: ON Power Save: ON -3Ver.1 NJM2570 PRELIMINARY ■ TEST CIRCUIT + 0.1uF 33kΩ 22kΩ 50Ω 5V 10uF 75Ω 75Ω Yout2 10uF + 0.1uF Yin 0.1uF 75Ω + Yout1 100uF + 22uF + 16 15 14 13 12 11 10 9 IREF V+1 Yin POWER SAVE VREF Yout Ysag V+2 NJM2570 GND1 SDCin SDCout Cout Vout Vsag GND2 1 2 3 4 5 6 7 8 0.1uF 10kΩ Cin SDCout Cin + 100uF -4Ver.1 75Ω + 22uF Vout1 Cout1 75Ω 75Ω Cout2 100kΩ 50Ω + 100uF 75Ω Vout2 75Ω NJM2570 PRELIMINARY ■ TERMINAL EXPLANATION PIN No. SYMBOL 1 Cin EQUIVALENT CIRCUIT DC VOLTAGE NOTE V+ 1 V+1 150Ω 20kΩ 2 GND 3 SDCin V+ 1 V +1 100Ω 4 SDCout V+ 1 10kΩ 125kΩ 95kΩ -5Ver.1 NJM2570 PRELIMINARY ■ TERMINAL EXPLANATION PIN No. SYMBOL 5 Cout EQUIVALENT CIRCUIT V +1 DC VOLTAGE V +2 9.3kΩ 6 Vout V +1 V +2 750Ω 7 Vsag V +1 V +2 750Ω 8 -6Ver.1 GND2 9.3kΩ 9.3kΩ NOTE NJM2570 PRELIMINARY ■ TERMINAL EXPLANATION PIN No. SYMBOL 9 V +2 10 Ysag EQUIVALENT CIRCUIT V +1 Yout V +1 9.3kΩ V +2 750Ω 12 Vref V +1 NOTE V +2 750Ω 11 DC VOLTAGE V +1 9.3kΩ V +1 100Ω 28kΩ -7Ver.1 NJM2570 PRELIMINARY ■ TERMINAL EXPLANATION PIN No. SYMBOL 13 Power Save EQUIVALENT CIRCUIT 32kΩ 48kΩ 14 Yin V +1 V +1 150Ω 150Ω 15 V +1 16 Iref V +1 V +1 6kΩ 150Ω -8Ver.1 DC VOLTAGE NOTE NJM2570 PRELIMINARY [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 -9Ver.1