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CX74001 Datasheet(PDF) 12 Page - Skyworks Solutions Inc. |
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CX74001 Datasheet(HTML) 12 Page - Skyworks Solutions Inc. |
12 / 23 page CX74001 Rx ASIC for CDMA, AMPS, and PCS Applications 12 Skyworks 101134A Proprietary Information and Specifications are Subject to Change March 5, 2002 Table 8. Logic Control for LNA Gain Step LNA_CTRL0 LNA_CTRL1 AMPS CELL CDMA PCS CDMA 0 0 HIGH HIGH HIGH 1 0 MEDIUM (Note 1) MEDIUM BYPASS 0 1 BYPASS (Note 1) BYPASS HIGH 1 1 BYPASS (Note 1) BYPASS BYPASS Key: 0 = Low, OFF 1 = High, ON X = Do not care Note 1: These modes are available but not used to meet the IS-98 Specifications. 8 9 10 11 12 13 14 15 16 17 18 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 Vcc (V) -30 deg C 25 deg C 85 deg C Figure 3. PCS LNA Gain at 1960 MHz 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 Vcc (V) -30 deg C 25 deg C 85 deg C Figure 5. PCS LNA IIP3 at 1960 MHz 0 0.5 1 1.5 2 2.5 3 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 Vcc (V) -30 deg C 25 deg C 85 deg C Figure 4. PCS LNA NF at 1960 MHz -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 Vcc (V) -30 deg C 25 deg C 85 deg C Figure 6. PCS LNA Gain at 1960 MHz(Bypass Mode) |
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