CXA3174N 데이터 시트보기 (PDF) - Sony Semiconductor
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CXA3174N Datasheet PDF : 10 Pages
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AGC IF for GSM/PCS
CXA3174N
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
Absolute Maximum Ratings (Ta = 25 °C)
• Supply voltage VCC
14
V
• Operating temperature range
Topr
–35 to +80
°C
• Storage temperature range
Tstg
–65 to +150 °C
Applications
GSM and PCS portable telephones
Operating Conditions
Supply voltage VCC
2.7 to 3.3
V
Structure
Bipolar silicon monolithic IC
Block Diagram and Package Outline
20
19
18
17
16
15
14
13
12
11
Reg
Gain Control AMP
Phase
Shifter
Gain Cont
×2
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
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