AA8622 Agamem Microelectronics Inc. PRELIMINARY Dual Video Amplifier DESCRIPTION AA8622 is a dual video amplifier with 6db gain, 75 output buffer and SAG correction. The 75 buffer is capable of driving two circuits. The SAG could reduce the output coupling capacitor. The power saving circuit provides the power saving function. The IC is available in 8-pin TSSOP package. 1. 2. 3. FEATURES Composite video driver with 6dB gain Dual channels video amplifier Output short circuit protection function 4. 5. 6. SAG correction function A load sufficient for driving two circuits Low operating current, 17mA typical 7. 8. Internal voltage clamp circuit 8-pin TSSOP package APPLICATION ¾ VCR ¾ ¾ ¾ Video Camera TV Video Player AA8622 BLOCK DIAGRAM Vcc 7 Vin2 75ȍ 6dB CLAMP Vout2 Driver Amp 75ȍ 5 100uF 750ȍ Vsag2 2.2K 75ȍ 6 22uF 2.0Kȍ Vout1 (6dB) Vout1 1 75ȍ 6dB Vout1 Driver Amp CLAMP Vin1 Vout2 (6dB) Vout2 8 75ȍ 4 100uF 750ȍ Vsag1 2.2Kȍ 75ȍ 3 22uF 2.0Kȍ 2 1 2009/2/18