Features

1) The playback amplifier has a total gain of 59dB (Typ.), and has a low-noise preamplifier. Designed for VHS-band operation with low external parts count. The IC has 2 circuits for 2-head VCR applications.

2) Two playback output systems (throgh output and AGC output). The AGC output level is 270mVP-P (Typ.) ; suitable for FM brightness signal output.

3) Auto-tracking interface for automated tracking adjustment. An integrate and hold detector is used to reduce the load on the microcontroller.

4) The recording amplifier uses constant-current BLT drive that handles load variations (i.e. headimpedance) well, and gives stable recording characteristics. A single circuit is provided for 2-head VCR use.

5) Built-in recording level AGC means adjustment of FM recording current is not necessary.

6) Head switches for 2-channel PRE / REC system provided.

7) Operates off a single 5V power supply, with low power dissipation.

Applications

VCRs