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KDC-7027/7027Y
8
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Description / Processing Operation
6,7
NC
-
Not used (N.C.)
8
AVSS3
-
GND
9
AVDD3
-
VDD (BU5V)
10
FBAL
O
Focusing balance adjustment output
11
TBAL
O
Tracking balance adjustment output
12
FE
I
Focusing error signal input
13,14
NC
-
Not used (N.C.)
15
TE
I
Tracking error signal input
16-18
NC
-
Not used (N.C.)
19
REFNV
I
RF envelope signal input
20
VREF
I
VREF input terminal
21
ARF
I
RF signal input (for DSL)
22
DRF
I
DSL bias terminal
23
DSLF
I/O
DSL loop filter terminal
24
IREF
I
Reference current input terminal
25
PLLF
I/O
PLL loop filter terminal
26
PLLF2
I/O
PLL loop filter characteristic switching terminal
27
VCOF
I/O
VCO loop filter terminal
28
VCOF2
I/O
VCO loop filter terminal Digital servo 33.8688MHz generation
29
TRV
O
Traverse forced feed output
30
TVD
O
Traverse drive output
31
PC
O
Spindle motor ON/OFF output (Lo : ON)
32
ECM
O
Spindle motor drive output (forced mode output)
33
ECS
O
Spindle motor drive output
34
KICK
O
Kick pulse output
35
TRD
O
Tracking drive output
36
FOD
O
Focusing drive output
37
TOFS
O
Tracking off-set adjustment output
PLL sampling clock output
Sub-code frame clock signal output
Crystal frame clock signal output
Interpolation flag signal output (H : Interpolated)
47
TRCRS
I
Track crossing signal input
48
STOUT
O
Serial data output for monitor signal
49
STLD
O
Load output for monitor signal
50
SMCK
O
Bit clock signal output for monitor signal
51
CSEL
I
Crystal oscillation frequency selection terminal (Hi : 33.8688MHz, Lo : 16.9344MHz)
52
TEST1
I
Test terminal 1
Not used (Connected to GND lines)
53
TEST2
I
Test terminal 2
Not used (Connected to GND lines)
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