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EVB3020A PDF预览

EVB3020A

更新时间: 2022-11-26 16:58:23
品牌 Logo 应用领域
杰尔 - AGERE 射频GSM
页数 文件大小 规格书
44页 406K
描述
GSM Multiband RF Transceiver

EVB3020A 数据手册

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Advance Data Sheet  
December 1999  
W3020 GSM Multiband RF Transceiver  
Features  
Applications  
n 2.7 V operation, low power consumption  
n GSM dual-band hand portables:  
GSM900/1800  
n Integrated receive, transmit, and synthesizer  
GSM900/1900  
functions  
n GSM single-band hand portables:  
GSM900  
n IF frequency and transmit offset frequency  
generated from the same LO  
GSM1800  
n Integrated dual LNAs and mixers  
GSM1900  
n Minimizes PCB design work between systems  
n Surface-mount, 64-pin TQFPT package  
GSM1800/1900  
ADC  
RX I  
IF  
270 MHz  
¸
2
F
GSM900  
SAW  
RX Q  
ADC  
VCO  
900: 1150 MHz—1230 MHz  
1800: 1530 MHz—1610 MHz  
1900: 1660 MHz—1730 MHz  
RF MODE  
& AGC  
CONTROL  
900: 925 MHz—960 MHz  
1800: 1805 MHz—1880 MHz  
1900: 1930 MHz—1990 MHz  
540 MHz VCO  
W3000  
FREQUENCY  
SYNTHESIZER  
LO2 PLL  
900: 880 MHz—915 MHz  
1800: 1710 MHz—1785 MHz  
1900: 1850 MHz—1910 MHz  
TX IF  
1800/1900: 180 MHz  
GSM1800/1900  
DAC  
TX I  
¸
¸
2
3
S
F
PA  
GSM900  
SWITCHED DIVIDER  
900: 270 MHz  
DAC  
TX Q  
Note: shaded area is off-chip.  
Figure 1. W3020 Circuit Block Diagram  

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