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參數(shù)資料
型號(hào): W3020
英文描述: GSM Multiband RF Transceiver
中文描述: 手機(jī)多頻段射頻收發(fā)器
文件頁(yè)數(shù): 1/44頁(yè)
文件大?。?/td> 409K
代理商: W3020
W3020 GSM Multiband RF Transceiver
Advance Data Sheet
December 1999
Features
n
2.7 V operation, low power consumption
n
Integrated receive, transmit, and synthesizer
functions
n
IF frequency and transmit offset frequency
generated from the same LO
n
Integrated dual LNAs and mixers
n
Minimizes PCB design work between systems
n
Surface-mount, 64-pin TQFPT package
Applications
n
GSM dual-band hand portables:
GSM900/1800
GSM900/1900
n
GSM single-band hand portables:
GSM900
GSM1800
GSM1900
GSM1800/1900
540 MHz VCO
DAC
Φ
÷
2
Φ
÷
2
÷
3
Σ
W3000
FREQUENCY
SYNTHESIZER
DAC
ADC
ADC
GSM900
900:
1800: 1805 MHz—1880 MHz
1900: 1930 MHz—1990 MHz
925 MHz—960 MHz
900:
1800: 1710 MHz—1785 MHz
1900: 1850 MHz—1910 MHz
880 MHz—915 MHz
900:
1800: 1530 MHz—1610 MHz
1900: 1660 MHz—1730 MHz
1150 MHz—1230 MHz
1800/1900: 180 MHz
TX IF
VCO
SAW
IF
270 MHz
RF MODE
& AGC
CONTROL
RX I
RX Q
TX I
TX Q
Note: shaded area is off-chip.
PA
SWITCHED DIVIDER
LO2 PLL
900: 270 MHz
GSM1800/1900
GSM900
Figure 1. W3020 Circuit Block Diagram
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