參數(shù)資料
型號: EVB3020A
英文描述: GSM Multiband RF Transceiver
中文描述: 手機(jī)多頻段射頻收發(fā)器
文件頁數(shù): 9/44頁
文件大?。?/td> 409K
代理商: EVB3020A
Advance Data Sheet
December 1999
W3020 GSM Multiband RF Transceiver
Lucent Technologies Inc.
17
LO2 Specification
The W3020 contains an input buffer for an external VCO and a PLL for generation of a second LO signal at
540 MHz. The output of the buffer is fed to the receive and transmit circuits, where the signal is divided to the IF
frequency. The phase noise includes contributions from VCO buffers to the transmit and receive circuits.
Table 9. LO2 Performance
VDD = 2.7 V; TA = 25 °C ± 3 °C.
Parameter
Min
Typ
Max
Unit
Charge Pump Supply (VDDC2)
2.7
2.85
3.0
V
Frequency
540
MHz
LO2 Input Level
–6
–3
0
dBm
Clock Reference Frequency
13.0
MHz
Clock Input Level
0.4
1
Vp-p
Reference Frequency (at phase detector)
1.0
MHz
Phase Accuracy (loop bandwidth 10 kHz)
1.3
°rms
Phase Detector Gain (VDD = 2.85 V)
200
A/cycle
Powerdown Charge Pump Supply Current (VDDC2)
1
mA
Phase Detector Voltage
0.5
1.3
VDDC2 – 0.5
V
Note: Reference sidebands determined by external loop filter components.
LO1 Input Buffer Specification
Table 10. LO1 Performance
VDD = 2.7 V; TA = 25 °C ± 3 °C.
Parameter
Min
Typ
Max
Unit
Frequency Range:
GSM900
1150
1230
MHz
GSM1800
1530
1610
MHz
GSM1900
1660
1730
MHz
Input Power Level
–6
–3
dBm
Input Noise Figure
8
10
dB
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