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LUCW3020CCS-DB Datasheet(PDF) 10 Page - Agere Systems |
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LUCW3020CCS-DB Datasheet(HTML) 10 Page - Agere Systems |
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10 / 44 page  Advance Data Sheet W3020 GSM Multiband RF Transceiver December 1999 10 Lucent Technologies Inc. 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 Min Typ Max Unit RF Input Band 925 — 960 MHz Current Consumption (collector current) — 3.5 — mA Noise Figure* — 2.0 — dB Power Gain (942 MHz)* — 20 — dB Input 1 dB Compression Level –20 –15 — dBm Input Return Loss — 14 — dB Off-state Gain — –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 Min Typ Max Unit RF Input Band: GSM1800 1805 — 1880 MHz GSM1900 1930 — 1990 MHz Current Consumption (collector current) — 3.5 — mA Noise Figure* — 3.0 — dB Power Gain (1842 MHz)* — 19 — dB Input 1 dB Compression Level –20 –16.5 — dBm Input Return Loss — 15 — dB Off-state Gain — –38 — dB * All gain and NF include matching losses. Not tested production. |
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