BA7746FS - Rohm

BA7746FS VCR Hi-Fi audio signal REC / PB amplifier

Pin No. Pin name, function and remarks Voltage Circuit diagram 〈VCC REC + B〉 • Power supply for REC + B. • Connect to VCC (pin 7). 1 VCC — 2 〈REC TC〉 • REC + B time constant. • Use to adjust the REC + B rise time using the C value. The value of the built-in resistor is 20kΩ. • The effect of current spikes when recording is started is reduced REC: 0.9V.

Features

REC MUTE and OVER REC functions. The playback system has a high-gain preamplifier, a low- offset head switch, VCA, and an EP-gain amplifier. In addition, all functions operate off a single 5V supply, and a H / L control system eliminates the need for special power supplies for the recording and playback systems. The IC has low power consumpution, and comes in a compact 32-pin SSOP-A package that requires little area on the PCB. It will improve the reliability and performance of your designs while reducing external component requirements. Applications
• VCRs Features
• 1) The low-noise playbac.