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參數(shù)資料
| 型號： | CXA3328TN |
| 英文描述： | WIRELESS COMMUNICATIONS Analog Signal Processor RX-IF IC for W-CDMA Cellular Phones (15 pages 176K Rev. E00738D24-PS) |
| 中文描述： | 無線通信市場模擬信號處理器的RX -集成電路中頻的W - CDMA蜂窩電話（15頁176K牧師E00738D24聚苯乙烯） |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 503K |
| 代理商： | CXA3328TN |
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CXA3309ER
Description of Operation
1. Outline of operation
This IC performs the signal processing between the analog transmit baseband processor block and the analog
transmit RF processor block of the cellular phone. The figure below shows the general circuit block diagram for
the portable cellular phones using this IC. The input for this IC is connected to the baseband signal processor
block; the output is connected to the analog RF processor block.
2. IC Internal Signal Flow
Two baseband-processed signals I, Q and the local signal are input to this IC as shown in the figure below.
The local signal itself and the local signal divided by 4 are multiplied, and then the unnecessary sideband
products are eliminated using the external LC resonator. Also, that signal becomes the quadrature I/Q local
signal via the CR phase shifter. The baseband I/Q signals are input to the quadrature modulatar, and
baseband processing to IF upconversion is performed with the quadrature local signals, it is input to the gain
control amplifier, and output after the gain controlled to the necessary level.
RF receive/
transmit processor
Baseband signal
processor
CXA3328TN/EN
CXA3309ER
OUT/OUTX
0
–90
I/IX
Q/QX
Local
1/4
CR Phase
Shifter
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CXA3328TN/EN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Signal Processor RX-IF IC forW-CDMA Cellular Phones |
| CXA3329ER | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Analog Signal Processor TX-IF IC for W-CDMA Cellular Phones |
| CXA3355AER | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:GPS Down Converter IC |
| CXA3355ER | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:GPS Down Converter IC |
| CXA3355ERVQFN | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:GPS Down Converter IC |
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