Mn662790Rsc (Ic651) : Digital Servo & Digital Signal Prossesor - JVC BC72 Service Manual

VS-DT7R
4.3 MN662790RSC (IC651) : Digital servo & Digital signal prossesor
4.3.1 Terminal layout
4.3.2 Pin function
Pin No. Symbol I/O
1 BCLK O
2 LRCK O
3 SRDATA O
4 DVDD1 -
5 DVSS1 -
6 TX O
7 MCLK I
8 MDATA I
9 MLD I
10 SENSE -
11 FLOCK -
12 TLOCK -
13 BLKCK O
14 SQCK I
15 SUBQ O
16 /DMUTE I
17 STAT O
18 DSP_RST I
19 SMCK -
20 CSEL I
21 TEST2 -
22 TVD O
23 PC -
24 ECM O
25 ECS O
26 VDETMON -
27 TRD O
28 FOD O
29 VREF I
30 FBAL O
31 TBAL O
32 FE I
33 TE I
34 RF ENV I
35 TEST3 I
36 OFT I
37 TRCRS I
38 /RFDET I
39 BDO I
20
Bit clock output for SRDATA
LR signal separation output
Serial data output
Power supply for digital circuit
GND for digital circuit
Digital audio ineterface output
Micro computer command clock signal input
Micro computer command data input
Micro computer command load signal input (L:Load)
Not use
Not use
Not use
Sub code block signal output
External clock input for sub code Q register input
Sub code Qdata output
Muting input (H:Mute)
Status signal input
Reset signal input (L:Reset)
Not use
Connect to DVDD1 (H fix)
Not use
Traverse drive output
Not use
Spindle motor drive signal (Enforced mode output)
Spindle motor drive signal (Servo error signal output)
Not use
Tracking drive output
Focus drive output
Reference voltage for D/A output block
Focus balance adjust signal output
Tracking balance adjust signal output
Focus error signal input (Analog input)
Tracking error signal input (Analog input)
RF envelope signal input (analog input)
Connect to GND
Off track signal input (H:Off track)
Track crosssignal input
RF detect signal input (L:Detect)
Drop out signal input (H:Drop out)
Function