cxa1741q Sony Electronics, cxa1741q Datasheet - Page 12

• Manufacturer Part Number: cxa1741q
• Description: If Amplifier For Analog Cellular Communications
• Manufacturer: Sony Electronics

Application Circuit
Vcc
Note: Use a 0.1µF capacitor for Pin 14 decoupling.
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
The IC malfunctions at a capacitance of 0.047µF or lower.
The oscillator circuit must be changed according to the crystal characteristics.
When designing PCB pattern, make PCB pattern so that Pins 3, 4, and 5 are connected correlatively.
This makes IC other than TACS/NTACS standard possible to use without changing PCB pattern.
0.1µ
20k
51k
2.2µ
2.2µ
2.2µ
TACS
31
32
33
34
35
36
37
38
39
40
50K
30
1
Vcc
BIAS
NTACS
50K
29
2
BPF0
BPF1
PSN
PSN
28
3
1.5µ
27
4
AUDIO
LIM
MIXER
OUT
26
5
1/2
82p
94k
—12—
RSSI
25
6
0.1µ
RSSI
OUT
AGC
DET
Vcc
24
7
47k
220k
RF AMP
23
8
0.1µ
45MHz
OSC
22
IN
9
100p
10
21
0.1µ
20
19
18
17
16
15
14
13
12
11
10p
0.1µ
0.1µ
0.1µ
0.047µ
Oscillator circuit
0.1µ
Vcc
Vcc
7p
109.9MHz
CXA1741Q
0.33µ