KD-S747
1-34 (No.49822)
4.7 TA2157FN-X (IC501) : RF amp
• Terminal layout
• Block diagram
24 ~ 13
1 ~ 12
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
18
19
20
21
22
23
24
20k 20k
15k
20k
20k
3k
180k
240k
240k
15pF
15pF
40pF
40pF
10pF
60k
60k
22k
22k
94k
94k
14k
50k
20k
20k
20k
40k
50k
PEAK
15k
40k
2k
1.75k
1.3V
2k
1k
180k
3k
12k
12k
20k
40k
30k
10pF
50 A
BOTTOM
PEAK
K
1
x0.5
x2
x0.5
x2
PIN
SEL
(APC SW)
TEB
(TE BAL)
RFGC
(AGC Gian)
TEB
(TE BAL)
VCTRLPIN
VCC
APC ON
-50%
+12dB
Normal mode
(0dB)
HiZ
APC ON
0%
+6dB
Normal mode
(0dB)
GND
APC OFF
(LDO=H)
50%
0dB
CD-RW mode
(+12dB)