IC DESCRIPTION
IC, LC78622ED
Pin No.Pin NameI/ODescription
1DEFIIDefect detection signal (DEF) input. ("L" is applied when not used.)
2TAIIFor PLL/Test input. A pull-down resistor is incorporated.
3PDOOPhase comparison output to control the external VCO.
4VVSS�Ground of the built-in VCO. Normally, 0V.
5ISETIFor the connection of a resistor which adjusts the PDO output current.
6VVDD�Power supply of the built-in VCO.
7FRIAdjusts the VCO frequency range.
8VSS�Ground of digital circuits. Normally, 0V.
9EFMOOFor slice level control/EFM signal output.
10EFMINIEFM signal input.
11T2ITest input. A pull-down resistor is incorporated. Be sure to connect this to 0V.
12CLV+
ODisc motor control tri-state outputs.
13CLV-
Output to monitor the automatic switching between the rough servo control and phase servo
14V/PO
control. "H" :Rough servo, "L": Phase servo.
15HFLITrack detection signal input. Schmitt trigger input.
16TESITrack error signal input. Schmitt trigger input.
17TOFFOTracking off output.
18TGLOTracking gain switching output. "L" raises the gain.
19JP+
OTrack jump control tri-state outputs.
20JP-
21PCKOMonitors the clock signal for EFM data playback.4.3218MHz when the phase is locked.
Sync signal detection output. Goes "H" when the sync signal detected from the EFM
22FSEQO
signal matches the sync signal generated internally. (Not used)
23VDD�Power supply of digital circuits.
24SL+I/OGeneral purpose input/output 1. Controlled by serial data command issued by the microprocessor.
25SL�I/OGeneral purpose input/output 2. Controlled by serial data command issued by the microprocessor.
26NC�Not connected.
27PUINI/OCD pickup inside limit switch.
28RWI/OSerial data command sled signal output terminal from microprocessor.
29EMPHODeemphasis monitor. "H": when playing a deemphasis disc. (Not used)
30C2FOC2 flag output. (Not used)
31DOUTOOutputs a digital OUT signal. (EIAJ format) (Not used)
32T3
ITest input. A pull-down resistor is incorporated. Be sure to connect this to 0V.
33T4
34N.C�Not connected.
35MUTELOLch 1-bit DAC/Lch muting output. (Not used)
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