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| NJM2274 LOW POWER VIDEO AMPLIFIER WITH Y-C MIXER s GENERAL DESCRIPTION The NJM2274 is a low power, 3V operation video amplifier with Y/C mixer and 75 ohm driver , which connect TV monitor directly. The NJM2274 has mute function , and suitable for energy save products and any low power system , which are Digital Camera , DVC and other video amplifier system. NJM2274R s PACKAGE OUTLINE s FEATURES q Low Operating Voltage 2.8 to 5.5V q Internal Y/C MIX Circuit q Y-input : Clamp C-input : Bias q Operating Current 9.3mA typ. at V+=3.0V q Operating Current at Power Save 0.9mA typ. at V+=3.0V q Bipolar Technology q Package Outline VSP8 s BLOCK DIAGLAM Power Save 6 Vref. Vcc 5 Yin 1 Disc. Clamp 3 750 4 Vsag Vout Cin 8 Bias 7 C mute 2 GND -1- NJM2274 s ABOSOLUTE MAXIMUM RATINGS PARAMRTER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL V+ PD Topr Tstg RATINGS 7.0 320 -40 to +85 -40 to +125 (Ta=25C) UNIT V mW C C s ELECTRICAL CHARACTERISTICS ( V+=3.0V,Ta=25C) PARAMETER Operating Voltage Operating Current Operating Current (Power Save Mode) Maximum Output Voltage Voltage Gain Frequency Characteristic Differential Gain Differential Phase Chroma Mute Cross talk S/N SYMBOL Vopr Iccq Iccs Vom Gv Gf DG DP CT SNv No Signal Power Save Mode f=1kHz,THD=1% Yin=100kHz , 0.5Vpp, Sine Video Signal (note) Yin=10MHz/100kHz,0.5Vpp, Sine Video Signal (note) Yin=0.5Vpp,10Step Video Signal Yin=0.5Vpp,10Step Video Signal Cin=4.43MHz,0.1Vpp Yin=0.5Vpp, 100%White Video Signal , Cin=AC gnd Wide Band 100kHz to 6MHz,RL=75ohm Yin=0.5Vpp,3.58MHz Red Field Video Signal, Cin=AC gnd RL=75ohm Chroma Input TEST CONDITION MIN. 2.8 2.2 11.9 -1.0 TYP. 3.0 9.3 0.9 12.4 0 2.5 1.0 -65 -60 MAX. 5.5 12.0 1.2 12.9 +1.0 UNIT V mA mA Vpp dB dB % deg dB dB Second Distortion Input Resistance Mute Switch Change Voltage Power Save Switch Change Voltage (note) Sine Video Signal Hv Zinc VthMH VthML VthPH VthPL 16 1.4 0 1.4 0 -40 20 - 24 V+ 0.6 V+ 0.6 dB k V V 40uS -2- NJM2274 s CONTROL TERMINAL EXPLANATION PARAMETER Chroma Mute STATUS H L OPEN H L OPEN Chroma Mute : ON Chroma Mute : OFF Chroma Mute : OFF Power Save : OFF Power Save : ON Power Save : ON NOTE Power Save s TEST CIRCUIT 75 50 Cin A SW4 B Cmute CTL P.S CTL V+ 10F 100pF A SW3 0.1F 8 7 6 5 B 1000pF 100pF NJM2274 1 0.1F SW1 A B 75 Vout1 SW2 A B Yin 75 2 3 4 100F 22F Vout2 75 50 -3- NJM2274 MEMO [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. |
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