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LMX2487SQX Datasheet(PDF) 5 Page - Texas Instruments |
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LMX2487SQX Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 49 page  LMX2487 www.ti.com SNAS322C – FEBRUARY 2006 – REVISED JANUARY 2016 6.5 Electrical Characteristics (VCC = 3.0 V; –40°C ≤ TA ≤ +85°C unless otherwise specified) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ICC PARAMETERS IF PLL OFF ICCRF Power supply current, RF synthesizer RF PLL ON 5.7 mA Charge Pump TRI-STATE IF PLL ON ICCIF Power supply current, IF synthesizer RF PLL OFF 2.5 mA Charge Pump TRI-STATE IF PLL ON Power supply current, entire ICCTOTAL RF PLL ON 8.5 mA synthesizer Charge Pump TRI-STATE CE = ENOSC = 0 V ICCPD Power-down current < 1 µA CLK, DATA, LE = 0 V RF SYNTHESIZER PARAMETERS RF_P = 16 1000 4000 fFinRF Operating frequency LMX2487 MHz RF_P = 32 1000 6000 pFinRF Input sensitivity –10 0 dBm fCOMP Phase detector frequency(1) 50 MHz RF_CPG = 0 95 µA VCPoutRF = VCC/2 RF_CPG = 1 190 µA VCPoutRF = VCC/2 ICPoutRFSRCE RF charge pump source current(2) ... ... µA RF_CPG = 15 1520 µA VCPoutRF = VCC/2 RF_CPG = 0 –95 µA VCPoutRF = VCC/2 RF_CPG = 1 –190 µA VCPoutRF = VCC/2 ICPoutRFSINK RF charge pump sink current(2) ... ... µA RF_CPG = 15 –1520 µA VCPoutRF = VCC/2 RF charge pump TRI-STATE current ICPoutRFTRI 0.5 ≤ VCPoutRF ≤ VCC -0.5 2 10 nA magnitude RF_CPG > 2 3% 10% Magnitude of RF CP sink vs CP VCPoutRF = VCC/2 | ICPoutRF%MIS | source mismatch TA = 25°C RF_CPG ≤ 2 3% 13% Magnitude of RF CP current vs CP 0.5 ≤ VCPoutRF ≤ VCC -0.5 | ICPoutRF%V | 2% 8% voltage TA = 25°C Magnitude of RF CP current vs | ICPoutRF%T | VCPoutRF = VCC/2 4% 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 fCOMP Phase detector frequency 10 MHz ICPoutIFSRCE IF charge pump source current VCPoutIF = VCC/2 3.5 mA ICPoutIFSINK IF charge pump sink current VCPoutIF = VCC/2 –3.5 mA IF charge pump TRI-STATE current ICPoutIFTRI 0.5 ≤ VCPoutIF ≤ VCC RF -0.5 2 10 nA magnitude Magnitude of IF CP sink vs CP source VCPoutIF = VCC/2 | ICPoutIF%MIS | 1% 8% mismatch TA = 25°C Magnitude of IF CP current vs CP 0.5 ≤ VCPoutIF ≤ VCC -0.5 | ICPoutIF%V | 4% 10% voltage TA = 25°C Magnitude of IF CP current vs | ICPoutIF%TEMP VCPoutIF = VCC/2 4% 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 the table in RF_CPG – RF PLL Charge Pump Gain for a complete listing of charge pump currents. Copyright © 2006–2016, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMX2487 |
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