24
24
D-AJ03
GVSW
13
VRO
14
FEO15
FEN16
RFRP
BOTTOM
PEAK
17
RFRPIN18
RFGO
19
RFGC20
AGCIN
21
RFO
22
RFN
23
GND
RFDC
TEO
TEN
TEBC
SEL
LDO
MDI
TNI
TPI
FPI
FNI
V
CC
24
12
11
10
9
8
7
6
5
4
3
2
1
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
k
X0.5
X2
1.3V
15pF
10pF
10pF
50µA
40µA
1
X0.5
X2
240kΩ
1.75kΩ
2kΩ
14kΩ
1kΩ
50kΩ
2kΩ
+
-
+
-
+
-
+
-
15pF
40pF
40pF
240kΩ
22kΩ
94kΩ
60k
Ω
20kΩ
20kΩ
20kΩ
20kΩ20kΩ
20kΩ
50kΩ
15kΩ
40kΩ
20kΩ
20kΩ
12kΩ
12kΩ
15kΩ
60kΩ
3kΩ
3kΩ
180kΩ
180kΩ
30kΩ40kΩ
40kΩ
+
-
22kΩ
94kΩ
PEAK
Description
I/O
Pin
No.
Symbol
1 Vcc 3.3 power pin 3.3
2 FNI I Main beam amp input 1.65
3 FPI I Main beam amp input 1.65
4 TPI I Sub beam amp input 1.65
5 TNI I Sub beam amp input 1.65
6 MDI I Monitor photo diode amp input 0
7 LDO O Laser diode amp output 2.67
8 SEL I
APC on/off sig., LDO pin cont. input
0
and bottom/peak detect f switching1.65
9 TEBC I Tracking error bal. sig. input 1.75
10 TEN I Tracking error sig. gen. amp (-) input 1.65
11 TEO O Tracking error sig. gen. amp output 1.65
12 RFDC O RF sig. peak detection output 1.5
13 GVSW I AGC, FE, TE amp gain switching 2.1
14 VRO O Ref. V (VRO) output 1.65
15 FEO O Focus error sig. gen. amp output 1.65
16 FEN I Focus error sig. gen. amp (-) input 1.65
17 RFRP O Tracking count sig. gen. amp output 0.75
18 RFRPIN I Tracking count sig. gen. amp input 1.65
19 RFGO O RF sig. amplitude adj. amp output 1.23
20 RFGC I RF amplitude adj. cont. sig. input 1.62
21 AGCIN I RF sig. amplitude adj. amp input 2.39
22 RFO O RF sig. gen. amp output 1.1
23 RFN I RF sig. gen. amp input 1.65
24 GND GND pin 0
TA2157F Terminal Function
LOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
30
29
28
27
26
25
24
23
22
21
20
19
18
17
DI
CE
VSS
TEST
LOUT
LBASS2
LBASS1
LTRE
LIN
LSELO
L4
L3
VDD
VREF
NC
ROUT
RBASS2
RBASS1
RTRE
RIN
RSELO
R4
L2
L1
NC
R3
R2
R1
NC
CL
L4
L3
L2
L1
R1
R2
R3
R4
NC
NC
4
3
2
1
30
29
28
27
26 25 24 23 22 21
10
98
7
65
20
19
18
17
16
15
14
13
12
11
LTRE LIN LSELO
RTRE RIN RSELO
TEST
Vss
CE
DI
CL
V
DD
Vref
NC
ROUT
LBASS2
RBASS2
LBASS1
RBASS1
CONTROL
CIRCUIT
CONTROL
CIRCUIT
CONTROL
CIRCUIT
CCB
INTERFACE
LVref
RVref
TA2157F (IC146)
LC75342M (IC315)
Voltage
(V)
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