– 49 –
CD-BP2000W/210W/2000W/BK2000W/210W
IC2 VHiLC78641E-1: Servo/Signal Control (LC78641E) (2/2)
44 LVDD – – L channel Power terminal for L channel.
45 LCHO Output 1/2VDD D/A converter L channel output terminal.
46 LVSS – – Ground terminal for L channel. Surely connected to 0V.
47 RVSS – – R channel Ground terminal for R channel. Surely connected to 0V.
48 RCHO OUTPUT 1/2VDD D/A converter R channel output terminal.
49 RVDD – – Power terminal for R channel.
50 XVDD – – For quartz Power terminal for quartz oscillation.
51 XIN Input Oscillation oscillation Ground terminal of 16.9344MHz quartz oscillation.
52 XOUT Output Oscillation
53 XVSS – – Ground terminal for quartz oscillation. Surely connected to 0V.
54 ASLRCK Input – For anti L/R clock input terminal. (When not used,connect to 0V)
55 ASDACK Input – shock mode Bit clock input terminal. (When not used,connect to 0V)
56 ASDFIN Input – L/R channel data input terminal. (When not used,connect to 0V)
57* LRSY Output L For digital L/R clock output terminal.
58* DATACK Output L data output Bit clock output terminal.
59* DATA Output L L/R channel data output terminal.
60* 16M Output Clock output 16.9344MHz output terminal.
61* SFSY Output L Output terminal of synchronous signal of subcode frame.
It drops when subcode stand by.
62* SBSY Output L Output terminal of synchronous signal of subcode block.
63* PW Output L Output terminal of subcodes P,A,R,S,T,U and W.
64 SBCK Input – Clock input terminal to read subcode. (When not used,connect to 0V)
65 CE Input – For Chip enable signal input terminal.
66 CL Input –
microcomputer
Data transmission clock input terminal.
67 DI Input – interface Data input terminal.
68 DO Output L Data output terminal.
69 INT Output H Interruption signal output terminal.
70 WRQ Output H Interruption signal output terminal.
71 RES Input – Reset input terminal of LC78640. When turning on power, set it at "L".
72 DRF Output L Focus ON detection terminal.
73 VDD5V – – Power terminal for microcomputer interface.
74 VSS – – Ground terminal of digital system. Surely connected to 0V.
75 CONT6 In/Output Input mode General purpose input/output terminal 6.
Controlled with serial data command
from microcomputer
.
When not used,
76 CONT7 In/Output Input mode General purpose input/output terminal 7.
set it as the input terminal
and
open it by connecting
to 0V, or set it
as the output terminal and open it.
77* V/ *P Output H Monitor output terminal for automatic switch of rough servo/phase control.
"H" for rough servo, and "L" for phase servo.
78* FSEQ Output L
Output terminal synchronous signal detection. "H" is output when synchronous
signal
detected by EFM signal matches synchronous signal
internally generated.
79* DEFECT In/Output Input mode
Defect terminal. After resetting, it is configured as an input terminal. It can be controlled
from the outside. It also becomes a defect monitor terminal under command control
80* EFMO Output Unfixed
EFM signal output terminal.
Pin No.
Function
Terminal Name
Input/Output
Setting in Reset
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Be sure to supply the same potential to each power terminal. (VVDD,ADAVDD,VDD,LVDD,RVDD,XVDD)
Terminal witch is controlled by the power terminal (VDD5V) for a microcomputer interface :
CE (65pin), CL (66pin), DI (67pin), DO (68pin), INT (69pin), WRQ (70pin), RES (71pin), DRF (72pin),
CONT6 (75pin), CONT7 (76pin)
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