W3020 データシートの表示（PDF） - Agere -> LSI Corporation

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W3020

GSM Multiband RF Transceiver

Agere -> LSI Corporation 

W3020 GSM Multiband RF Transceiver

Advance Data Sheet

December 1999

LNA

The W3020 contains two on-chip LNAs, one to operate in the GSM900 band and one to operate in the

GSM1800/1900 bands. The GSM900 operation is combined with the GSM1800 band operation in a dual-band

terminal. Only one LNA operates at a time. The two on-chip LNAs with external matching networks are 50 Ω

single-ended input, single-ended output type. Switching between the LNAs is determined by the band bit B and

the gain control bit G0 in the TR register, as described in the Programming Information section.

Table 2. GSM900 LNA Performance

VDD = 2.7 Vdc; TA = 25 °C ± 3 °C.

Parameter

RF Input Band

Current Consumption (collector current)

Noise Figure*

Power Gain (942 MHz)*

Input 1 dB Compression Level

Input Return Loss

Off-state Gain

Min

Typ

Max Unit

925

—

960 MHz

—

3.5

— mA

—

2.0

— dB

—

20

— dB

–20

–15

— dBm

—

14

— dB

—

–51

— dB

* All gain and NF include matching losses. Not tested in production.

Table 3. GSM1800/1900 LNA Performance

VDD = 2.7 Vdc; TA = 25 °C ± 3 °C.

Parameter

RF Input Band:

GSM1800

GSM1900

Current Consumption (collector current)

Noise Figure*

Power Gain (1842 MHz)*

Input 1 dB Compression Level

Input Return Loss

Off-state Gain

* All gain and NF include matching losses. Not tested production.

Min

1805

1930

—

—

—

–20

—

—

Typ

—

—

3.5

3.0

19

–16.5

15

–38

Max Unit

1880

1990

—

—

—

—

—

—

MHz

MHz

mA

dB

dB

dBm

dB

dB

10

Lucent Technologies Inc.

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