IC BLOCK DIAGRAM & DESCRIPTION
IC602 LC78622 (Digital Signal Processor)
Power terminal for crystal oscillator
Joining terminal for crystal resonator (16.9344 MHz)
Ground terminal for crystal oscillator. Make sure to ground.
Output terminal for synchronizing signals of sub-code clock.
Monitor terminal for 1 bit or 2 bit error correction
Output terminal for sub-code P, Q, R, S, T, U or W.
Output terminal for synchronizing signals of sub-code frame. When sub-code is stood by, falls.
Input terminal for clock to read out sub-code. Schmitt input (when not used, make sure to ground.)
Output terminal for synchronizing signal (7.35 kHz) which is divided from crystal oscillator.
Output terminal for Q output standby of sub-code.
Input terminal for read/write control. Schmitt input.
Output terminal for Q output of sub-code.
Input terminal for command from micro-computer.
Input terminal either for clock to take in command input or for clock to take out sub-code from SQOUT. Schmitt input.
Input terminal for reseting this LSI. Switches to "L" position for a moment at power-on.
Output terminal for test. Make sure to open circuit. (Normally "L" output)
Output terminal of 16.9344 MHz
Output terminal of 4.2336 MHz
Input terminal for test. Pull-down resistor incorporated. Make sure to ground.
Input terminal for chip selecting. Pull-down resistor incorporated. Make sure to ground when not controlled.
Input terminal for test. No pull-down resistor. Make sure to ground.
Note: Each power terminal (VDD, VVDD, LVDD, RVDD and XVDD) must be supplyed with the same voltage.
IC801 LA1823 (Tuner)
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