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LMX2486 Datasheet(PDF) 4 Page - Texas Instruments |
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LMX2486 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 41 page LMX2486 SNAS324 – JANUARY 2006 www.ti.com Electrical Characteristics (continued) (VCC = 3.0V; -40°C ≤ TA ≤ +85°C unless otherwise specified) Value Symbol Parameter Conditions Units Min Typ Max RF SYNTHESIZER PARAMETERS RF_P = 16 1000 4000 Operating fFinRF LMX2486 MHz Frequency RF_P = 32 1000 4500 pFinRF Input Sensitivity -15 0 dBm Phase Detector fCOMP Frequency 50 MHz (1) RF_CPG = 0 95 µA VCPoutRF = VCC/2 RF_CPG = 1 RF Charge Pump 190 µA VCPoutRF = VCC/2 ICPoutRFSRCE Source Current (2) ... ... µA RF_CPG = 15 1520 µA VCPoutRF = VCC/2 RF_CPG = 0 -95 µA VCPoutRF = VCC/2 RF_CPG = 1 RF Charge Pump Sink -190 µA VCPoutRF = VCC/2 ICPoutRFSINK Current (2) ... ... µA RF_CPG = 15 -1520 µA VCPoutRF = VCC/2 RF Charge Pump TRI- ICPoutRFTRI STATE Current 0.5 ≤ VCPoutRF ≤ VCC -0.5 2 10 nA Magnitude Magnitude of RF CP RF_CPG > 2 3 10 % VCPoutRF = VCC/2 | ICPoutRF%MIS | Sink vs. CP Source TA = 25°C RF_CPG ≤ 2 3 13 % Mismatch Magnitude of RF CP 0.5 ≤ VCPoutRF ≤ VCC -0.5 | ICPoutRF%V | 2 8 % Current vs. CP Voltage TA = 25°C Magnitude of RF CP | ICPoutRF%T | VCPoutRF = VCC/2 4 % Current vs. Temperature IF SYNTHESIZER PARAMETERS IF_P = 8 250 2000 fFinIF Operating Frequency MHz IF_P = 16 250 3000 pFinIF IF Input Sensitivity -10 +5 dBm Phase Detector fCOMP 10 MHz Frequency IF Charge Pump Source ICPoutIFSRCE VCPoutIF = VCC/2 3.5 mA Current IF Charge Pump Sink ICPoutIFSINK VCPoutIF = VCC/2 -3.5 mA Current IF Charge Pump TRI- ICPoutIFTRI STATE Current 0.5 ≤ VCPoutIF ≤ VCC RF -0.5 2 10 nA Magnitude Magnitude of IF CP Sink VCPoutIF = VCC/2 | ICPoutIF%MIS | 1 8 % vs. CP Source Mismatch TA = 25°C Magnitude of IF CP 0.5 ≤ VCPoutIF ≤ VCC -0.5 | ICPoutIF%V | 4 10 % Current vs. CP Voltage TA = 25°C Magnitude of IF CP | ICPoutIF%TEMP| VCPoutIF = VCC/2 4 % Current vs. Temperature (1) For Phase Detector Frequencies above 20 MHz, Cycle Slip Reduction (CSR) may be required. Legal divide ratios are also required. (2) Refer to table in Section RF_CPG -- RF PLL Charge Pump Gain for complete listing of charge pump currents. 4 Submit Documentation Feedback Copyright © 2006, Texas Instruments Incorporated Product Folder Links: LMX2486 |
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