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TA2109F-X (IC521) : RF amp.
1. Pin layout
2. Block diagram
3. Pin function
Pin
Symbol I/O
No.
1
Vcc
-
2
FNI
I
3
FPI
I
4
TPI
I
5
TNI
I
6
MDI
I
7
LDO
O
8
SEL
I
9
TEB
I
10
2VRO
O
11
TEN
I
TEO
O
12
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24
1
SBAD
13
50k ohm
FEO
14
36pF
FEN
7.96k ohm
15
10k ohm
VRO
16
21k ohm
21k ohm
50uA
20k ohm
RFRP
17
12k ohm
12k ohm
RFIS
18
20k ohm
PEAK
RFGO
BOTTOM
19
RFGC
20
23.5k ohm
AGCI
21
re=130 ohm
RFO
22
GND
23
1.53k ohm
RFN
24
3.3k ohm
3.3k ohm
Pin function
Power supply input terminal
Main beam I-V amp input terminal
Main beam I-V amp input terminal
Sub beam I-v input terminal
Sub beam I-V input terminal
Monitor photo diode amp input terminal
Laser diode amp output terminal
Laser diode control signal input terminal
T. error balance adj. signal input terminal
Reference voltage output terminal
TE amp negative input terminal
TE error signal output terminal
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13
12
15k ohm
30k ohm
15k ohm
10k ohm
10k ohm
20uA
30k ohm
10k ohm
21k ohm 29k ohm
24k ohm 24k ohm
1.74k ohm
180k ohm
20pF
180k ohm
12k ohm
20pF
180k ohm
40pF
60k ohm
60k ohm
180k ohm
40pF
Pin
Symbol I/O
No.
13
SBAD
O
14
FEO
O
15
FEN
I
16
VRO
O
17
RFRP
O
18
RFIS
I
19
RFGO
O
20
RFGC
I
21
AGCI
I
22
RFO
O
23
GND
-
RFN
I
24
7.67k ohm
TEO
12
20pF
TEN
11
10k ohm
2VRO
10
TEB
9
3 STATE
DET.
SEL
SW1
47k ohm
8
LDC
LDO
1k ohm
SW2
7
680 ohm
SW3
MDI
6
2.12k ohm
13k ohm
TNI
5
I-I
TPI
I-I
4
20k ohm
FPI
3
20k ohm
20k ohm
FNI
2
20k ohm
Vcc
1
Pin function
Sub beam adder signal output terminal
Focus error signal output terminal
FE amp negative input terminal
Reference voltage (VREF) output terminal
Track count signal output terminal
RFRP detect circuit input terminal
RF gain signal output terminal
RF amplitude adj. control signal input terminal
RF signal amplitude adj. amp input terminal
RF signal output terminal
Ground terminal
RF amp negative input terminal
KD-S871R
1-29
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