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NJM2578 Dataheets PDF



Part Number NJM2578
Manufacturers JRC
Logo JRC
Description LOW VOLTAGE VIDEO AMPLIFIER
Datasheet NJM2578 DatasheetNJM2578 Datasheet (PDF)

NJM2578 www.DataSheet4U.com LOW VOLTAGE VIDEO AMPLIFIER WITH LPF sGENERAL DESCRIPTION The NJM2578 is a Low Voltage Video Amplifier contained LPF circuit. Internal 75Ω driver is easy to connect TV monitor directly. The NJM2578 features low power and small package, and is suitable for low power design on downsizing of DSC and DVC. sPACKAGE OUTLINE NJM2578KJ1 sFEATURES q Operating Voltage 2.8 to 5.5V q Input coupling capacitor is not necessary q 12dB amplifier q Internal LPF -23dB at 23.5MHz t.

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NJM2578 www.DataSheet4U.com LOW VOLTAGE VIDEO AMPLIFIER WITH LPF sGENERAL DESCRIPTION The NJM2578 is a Low Voltage Video Amplifier contained LPF circuit. Internal 75Ω driver is easy to connect TV monitor directly. The NJM2578 features low power and small package, and is suitable for low power design on downsizing of DSC and DVC. sPACKAGE OUTLINE NJM2578KJ1 sFEATURES q Operating Voltage 2.8 to 5.5V q Input coupling capacitor is not necessary q 12dB amplifier q Internal LPF -23dB at 23.5MHz typ. q Internal 75Ω Driver Circuit (2-system drive) q Power Save Circuit q Bipolar Technology q Package Outline SON6 sBLOCK DIAGRAM V+ 6 75Ω Driver 2 Vout 12dB Vin 4 LPF 3 Vsag 5 GND 1 Pow er Save -1- NJM2578 www.DataSheet4U.com sABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL + V PD Topr Tstg + RATINGS 7.0 150 -40 to +85 -40 to +125 UNIT V mW °C °C sELECTRICAL CHARACTERISTICS (V =3.0V,RL=150Ω,Ta=25°C) PARAMETER Operating Voltage Operating Current Operating Current at Power Save Maximum Output Voltage Swing Voltage Gain SYMBOL Vopr ICC Isave Vomv Gv No Signal Power Save Mode f=100kHz,THD=1% TEST CONDITION MIN. TYP. MAX. UNIT V mA uA Vp-p dB 2.8 2.2 12.0 -0.95 1.8 0 3.0 9.0 10 2.6 12.4 -0.45 -3.0 -23 0.5 0.5 +60 -60 - 5.5 12.0 25 12.8 0.05 -17 V + Vin=100kHz, 0.5Vp-p, Input Sine Signal Gfy4.5M Vin=4.5MHz/100kHz, 0.5Vp-p Gfy8M Gfy19M DG DP SNv Hv VthPH VthPL Vin=8MHz/100kHz, 0.5Vp-p Vin=19MHz/100kHz, 0.5Vp-p Vin=0.5Vp-p, 10step Video Signal Vin=0.5Vp-p, 10step Video Signal Vin=0.5Vp-p, RL=75Ω 100% White Video Signal, 100KHz to 6MHz Vin=0.5Vp-p, 3.58MHz,Sine Signal, RL=75Ω Active Non-active Low Pass Filter Characteristic Differential Gain Differential Phase S/N Ratio 2nd. Distortion SW Change Voltage High Level SW Change Voltage Low Level sCONTROL TERMINAL PARAMETER Power Save dB % deg dB dB V 0.3 STATUS H L OPEN Power Save: OFF Power Save: ON Power Save: ON NOTE -2- NJM2578 www.DataSheet4U.com sTEST CIRCUIT in GND 0.1u 10u + V+ 330 Ω GND 6 V+ 5 GND 4 Vin NJM2578 PS 1 Vps 100u + Vout 2 Vsag 3 22u + out1 out2 75 Ω 75 Ω Please input the signal, which made the bottom end of a waveform the GND level. Please do not set an input terminal to OPEN at non-signal. -3- NJM2578 www.DataSheet4U.com s EQUIVARENT CIRCUIT PIN No. 1 SYNBOL Power Save INSIDE EQUIVARENT CIRCUIT PS 32k 48k GND 2 Vout V + 16.2k 750 Vout GND 3 Vsag V + Vsag 16.2k 750 GND 4 Vin 36k Vin 25k V + GND 5 6 GND V+ -4- NJM2578 www.DataSheet4U.com s TYPICAL CHRACTERISTICS Supply Current vs. Supply Voltage 14 13 12 11 10 9 8 7 6 2 3 4 10 Isave[uA] 40 Supply Current at Power Save Mode vs. Supply Voltage 60 (No Signal) (No Signal) 50 Icc[mA] 30 20 0 Maximum Output Voltage Swing vs. Supply Voltage (f=100kHz,THD=1%) 6.0 14.0 5 + V [V] 6 7 8 2 3 4 Voltage Gain vs. Supply Voltage (vin=100kHz,0.5Vpp sine-signal) 5 + V [V] 6 7 8 5.0 13.5 1.


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