參數(shù)資料
型號(hào)： EVB3020A-IFBD
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)： 3/44頁(yè)
文件大?。?/td> 409K
代理商： EVB3020A-IFBD
Advance Data Sheet
December 1999
W3020 GSM Multiband RF Transceiver
Lucent Technologies Inc.
11
RF Mixer
The W3020 contains two mixers: one for GSM900 band operation and one for GSM1800/1900 band operation.
The RF mixers are double-balanced mixers that can be used in various modes of operation. The ac-grounded
input (pin 56) requires grounding at both the RF and the IF frequencies. If grounding is not placed close to the
device, the RF performance will be compromised. At the output, the mixer is connected to a balanced IF SAW
filter.
Table 4. RF Performance: GSM900
VDD = 2.7 V; TA = 25 °C ± 3 °C. FIN = 942 MHz
Parameter
Min
Typ
Max
Unit
RF Input Band
925
—
960
MHz
Output IF Frequency
—
270
—
MHz
LO Frequency Range
1195
—
1230
MHz
Noise Figure (SSB)
—
9
12
dB
Mixer Power Gain*
7
dB
I/P 1 dB Compression
–10
–5
—
dBm
*LO1 level = –6 dBm, FLO = 1212 MHz, FIF= 270 MHz.
Table 5. RF Performance: GSM1800/1900
VDD = 2.7 V; TA = 25 °C ± 3 °C. FIN = 1842 MHz
Parameter
Min
Typ
Max
Unit
RF Input Band:
GSM1800
1805
—
1880
MHz
GSM1900
1930
—
1990
MHz
Output IF Frequency
—
270
—
MHz
LO Frequency Range:
GSM1800
1535
—
1610
MHz
GSM1900
1660
—
1720
MHz
Noise Figure (SSB)
—
9.5
12
dB
Mixer Power Gain*
4
6
—
dB
I/P 1 dB Compression
–12
–7
—
dBm
*LO1 level = –6 dBm, FLO = 1572 MHz, FIF = 270 MHz
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