
TA2157F/FN
2002-11-21
5
Pin
No.
Symbol
I/O
Function Description
Internal Circuit
14
VRO
O
Reference voltage (VRO) output pin
VRO = 1/2 VCC when VCC = 3.3 V
15
FEO
O
Focus error signal generation amp output pin
16
FEN
I
Focus error signal generation amp
negative-phase input pin
17
RFRP
O
Signal amp output pin for track count
Combining RFRP signal and TEO signal with
TC94A14F/FA/FB configures tracking search
system.
18
RFRPIN
I
Signal generation amp input pin for track count
14
10 k
W
20
W
20
W
16
15
15 k
W
167
W
20
m
A
VC
167
W
40
m
A
10
pF
17
20 k
W
333
W
400
m
A
3 pF
18
1 k
W
1
m
A
1
m
A
40
k
W
VC
33
pF
33
pF
1.
5
m
A
1.
5
m
A