Terminal Function Of Ics; Ic701 (An8885Sbe1) Servo Amplifier - Panasonic SA-AK52 Service Manual

14 Terminal Function of ICs

14.1. IC701 (AN8885SBE1) Servo Amplifier

Pin No. Mark I/O
1 PDE I
2 PDF I
3 VCC I
4 PDA I
5 PDB I
6 LPD I
7 LD O
8 RF O
9 RFIN I
10 CSBRT I
11 CEA I
12 BDO O
13 LDON I
14 GND —
14.2. IC702 (MN662790RSC) Servo processor/ Digital signal processor/
Digital filter/ D/A converter
No. Mark I/O
1 BCLK O
2 LRCK O
3 SRDATA O
4 DVDD1 I
5 DVSS1 I
6 TX O
7 MCLK I
8 MDATA I
9 MLD I
10 SENSE O
11 /FLOCK O
12 /TLOCK O
13 BLKCK O
14 SQCK I
15 SUBQ O
16 DMUTE I
17 STAT O
18 /RST I
19 SMCK O
20 CSEL I
21 TRV O
22 TVD O
23 PC O
Function
Tracking signal input 1
Tracking signal input 2
Power supply
Focus signal input terminal 1
Focus signal input terminal 2
APC amp input
APC amp output
RF summing output
Detector's input
Capacitor for OFTR connection
Capacitor for HPF amp connection
BDO output ("H" : drop out)
APC control
Ground
Function
N.C.
N.C.
N.C.
Power supply input (for digital
circuit)
GND (for digital circuit)
Digital audio interface signal
output (Latches data at first
transition)
Microprocessor command
clock signal input
Microprocessor command
data signal input
Microprocessor command
load signal input
Sense signal output (OFT,
FESL,MAGEND,NAJEND,PO
SAD,SFG) (Not used, open)
Focus servo feeding signal
output ("L" : Feed)
Tracking servo feeding signal
output ("L" : Feed)
Sub-code block clock signal
output (fBLKCK = 75Hz
during normal playback)
External clock signal input for
sub-code Q resistor
Sub-code Q code output
Muting input ("H": mute)
Status signal output
(CRC,CUE,CLVS,TTSTVP,F
CLV,SQCK)
Reset signal input
1/2-divided clock signal of
crystal oscillating at MSEL =
"H" (fSMCK = 8.4672 MHz)
1/4-divided clock signal of
crystal oscillating at MSEL =
"L" (fSMCK = 4.2336 MHz)
Frequency Selection Terminal
H = 33.8688 MHz; L =
16.9344 MHz
N.C.
Traverse drive output
Spindle motor ON output ("L"
: ON)
Pin No. Mark I/O
15 /RFDET O
16 PDOWN O
17 OFTR O
18 NC O
19 ENV O
20 NC I
21 NC I
22 TEN I
23 TEOUT O
24 FEOUT O
25 FEN I
26 VREF O
27 TBAL I
28 FBAL I
No. Mark
24 ECM
25 ECS
26 KICK
27 TRD
28 FOD
29 VREF
30 FBAL
31 TBAL
32 FE
33 TE
34 RFENV
35 VDET
36 OFT
37 TRCRS
38 /RFDET
39 BDO
40 LDON
41 PLLF2
42 DSLF2
43 WVEL
44 ARF
45 IREF
46 DRF
47 DSLF
48 PLLF
49 VCOF
50 AVDD2
51 AVSS2
25
Function
NRFDET output ("L" : detection)
Power-down input
OFTR output
N.C.
3T-ENV output
N.C.
N.C.
TE amp input
TE amp output
FE amp output
FE amp input
Reference voltage output
Tracking balance control
Focus balance control
I/O Function
O Spindle motor drive signal
output(forced mode output)
O Spindle motor drive signal
output
(servo error signal output)
O N.C.
O Tracking drive output
O Focus drive output
I D/A (drive) output (TVD, ECS,
TRD, FOD, FBAL, TBAL)
Reference voltage input
O Focus balance adjustment
output
O Tracking balance adjustment
output
I Focus error signal input
(analog input)
I Tracking error signal input
(analog input)
I RF envelope signal input
I Vibration detection signal
input ("H" : detection)
I Off-track signal input ("H" : off
track)
I Track cross signal input
I RF detection signal input ("L"
: detection)
I Dropout signal input ("H" :
Dropout)
O Laser on signal output ("H" :
ON)
I/O N.C.
O Tracking Offset alignment
output/DSL Balance Output
(DA Output)
O N.C.
I RF signal input
I Reference current input
I DSL bias terminal (Not used,
open)
I/O DSL loop filter terminal
I/O PLL loop filter terminal
I/O VCO loop filter terminal
I Power supply input
analog circuit)
I GND (for analog circuit)
SA-AK52
(for