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SI4136 Datasheet(PDF) 8 Page - Silicon Laboratories |
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SI4136 Datasheet(HTML) 8 Page - Silicon Laboratories |
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8 / 30 page  Si 41 36 8 Rev. 1.0 Table 5. RF and IF Synthesizer Characteristics (VDD = 3.0 to 3.6 V, TA = –40 to 85°C) Parameter1 Symbol Test Condition Min Typ Max Unit XIN Input Frequency fREF XINDIV2 = 0 2 — 25 MHz XIN Input Frequency f REF XINDIV2 = 1 25 — 50 MHz Reference Amplifier Sensitivity V REF 0.5 — VDD +0.3 V VPP Phase Detector Update Frequency fφ fφ = fREF/R for XINDIV2 = 0 fφ = fREF/2R for XINDIV2 = 1 0.010 — 1.0 MHz RF1 VCO Tuning Range2 2300 — 2500 MHz RF2 VCO Tuning Range2 2025 — 2300 MHz IF VCO Center Frequency Range fCEN 526 — 952 MHz IFOUT Tuning Range from fCEN with IFDIV 62.5 — 1000 MHz IFOUT VCO Tuning Range from fCEN Note: L ±10% –5 — 5 % RF1 VCO Pushing Open loop — 0.75 — MHz/V RF2 VCO Pushing — 0.65 — MHz/V IF VCO Pushing — 0.10 — MHz/V RF1 VCO Pulling VSWR = 2:1, all phases, open loop — 0.250 — MHz p-p RF2 VCO Pulling — 0.100 — MHz p-p IF VCO Pulling — 0.025 — MHz p-p RF1 Phase Noise 1 MHz offset — –130 — dBc/Hz RF1 Integrated Phase Error 100 Hz to 100 kHz — 1.2 — degrees rms RF2 Phase Noise 1 MHz offset — –131 — dBc/Hz RF2 Integrated Phase Error 100 Hz to 100 kHz — 1.0 — degrees rms IF Phase Noise at 800 MHz 100 kHz offset — –104 — dBc/Hz IF Integrated Phase Error 100 Hz to 100 kHz — 0.4 — degrees rms Notes: 1. fφ(RF) = 1 MHz, fφ(IF) = 1 MHz, RF1 = 2.4 GHz, RF2 = 2.1 GHz, IFOUT = 800 MHz, LPWR = 0, for all parameters unless otherwise noted. 2. RF VCO tuning range limits are fixed by inductance of internally bonded wires. 3. From power up request (PWDNB ↑ or SENB↑ during a write of 1 to bits PDIB and PDRB in Register 2) to RF and IF synthesizers ready (settled to within 0.1 ppm frequency error). 4. From power down request (PWDNB ↓, or SENB↑ during a write of 0 to bits PDIB and PDRB in Register 2) to supply current equal to IPWDN. |
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