NJM2274 LOW POWER VIDEO AMPLIFIER WITH Y-C MIXER ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE 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 ■ FEATURES ● Low Operating Voltage 2.8 to 5.5V ● Internal Y/C MIX Circuit ● Y-input : Clamp C-input : Bias ● Operating Current 9.3mA typ. at V+=3.0V ● Operating Current at Power Save 0.9mA typ. at V+=3.0V ● Bipolar Technology ● Package Outline VSP8 ■ BLOCK DIAGLAM Vcc Power Save 5 6 Vref. Yin 1 Clamp 3 Vout 4 Vsag Disc. 750Ω Cin 8 Bias 7 2 C mute GND -1- NJM2274 ■ ABOSOLUTE MAXIMUM RATINGS PARAMRTER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range (Ta=25°C) SYMBOL V+ PD Topr Tstg RATINGS 7.0 320 -40 to +85 -40 to +125 UNIT V mW °C °C ■ ELECTRICAL CHARACTERISTICS ( V+=3.0V,Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT 2.8 3.0 5.5 V Operating Voltage Vopr Operating Current Operating Current (Power Save Mode) Maximum Output Voltage Iccq No Signal - 9.3 12.0 mA Iccs Power Save Mode - 0.9 1.2 mA Vom 2.2 - - Vpp 11.9 12.4 12.9 dB -1.0 0 +1.0 dB - 2.5 - % Voltage Gain Gv Frequency Characteristic Gf Differential Gain DG 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 Differential Phase DP Yin=0.5Vpp,10Step Video Signal - 1.0 - deg Chroma Mute Cross talk CT - -65 - dB S/N SNv 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 - -60 - dB - -40 - dB 16 20 24 kΩ VthMH VthML VthPH 1.4 0 1.4 - V+ 0.6 V+ VthPL 0 - 0.6 Second Distortion Hv Input Resistance Zinc Mute Switch Change Voltage Power Save Switch Change Voltage (note) Sine Video Signal 40uS<t<50uS 714mVpp 357mVpp 286mVpp -2- V V NJM2274 ■ CONTROL TERMINAL EXPLANATION PARAMETER STATUS NOTE Chroma Mute H L OPEN Chroma Mute : ON Chroma Mute : OFF Chroma Mute : OFF Power Save H L OPEN Power Save : OFF Power Save : ON Power Save : ON ■ TEST CIRCUIT 75Ω 50Ω Cin A V+ Cmute CTL B P.S CTL SW4 10µF 100pF A 100pF B 1000pF SW3 0.1µF 8 7 6 5 NJM2274 1 0.1µF 2 3 4 100µF Vout2 SW1 A 22µF 75Ω B Vout1 75Ω SW2 A B Yin 75Ω 50Ω -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.