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Sony Semiconductor Electronic Components Datasheet

CXA3174N Datasheet

AGC IF for GSM/PCS

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CXA3174N pdf
CXA3174N
AGC IF for GSM/PCS
For the availability of this product, please contact the sales office.
Description
The CXA3174N is a 4-bit digital control variable
gain amplifier suitable for the communications.
20 pin SSOP (Plastic)
Features
Gain control amplifier with the wide gain variable
range
Doubler circuit for the LO (local) signal eliminates
need for the phase shifter
Functions
IF signal gain control circuit
• I/Q quadrature demodulator
Doubler circuit for the LO signal
Gain control by the 4-bit digital data
Power saving
Applications
GSM and PCS portable telephones
Absolute Maximum Ratings (Ta = 25 °C)
Supply voltage VCC
14
Operating temperature range
Topr
–35 to +80
Storage temperature range
Tstg –65 to +150
Operating Conditions
Supply voltage VCC
2.7 to 3.3
V
°C
°C
V
Structure
Bipolar silicon monolithic IC
Block Diagram and Package Outline
20 19 18 17 16 15 14 13 12 11
Phase
Shifter
Gain Control AMP
×2
Gain Cont
Reg
1 2 3 4 5 6 7 8 9 10
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E96932A8Z


Sony Semiconductor Electronic Components Datasheet

CXA3174N Datasheet

AGC IF for GSM/PCS

No Preview Available !

CXA3174N pdf
CXA3174N
Pin Description
Pin
Symbol
No.
Pin voltage
1 QXOUT
2 QOUT
19 IOUT
20 IXOUT
3
5
10
NC
12
17
18
1.5 V
1
2
19
20
Equivalent circuit
5.4k
Description
Q inverted signal output.
VCC
Q signal output.
I signal output.
GND
I inverted signal output.
Not connected.
VCC
4 LOIN
6 VC4
7 VC3
8 VC2
9 VC1
1.3 V
4
2k
500
2k
Local signal input.
40k
6
7
8
9
GND
AGC control signal input. MSB.
VCC
AGC control signal input. 3LSB.
AGC control signal input. 2LSB.
GND
AGC control signal input. LSB.
—2—


Part Number CXA3174N
Description AGC IF for GSM/PCS
Maker Sony Corporation
Total Page 10 Pages
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CXA3174N pdf
CXA3174N Datasheet PDF
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