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LMX2364SLEX Datasheet(PDF) 6 Page - National Semiconductor (TI) |
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LMX2364SLEX Datasheet(HTML) 6 Page - National Semiconductor (TI) |
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6 / 39 page ![]() Electrical Characteristics (V Vcc =VVcp = 3.0V; −40˚C ≤ T A ≤ +85˚C except as specified) (Continued) Symbol Parameter Conditions Value Units Min Typ Max OSCILLATOR PARAMETERS f OSC Oscillator Operating Frequency 2 110 MHz v OSC Oscillator Sensitivity OSCinRF, OSCinIF 0.5 V Vcc V I OSC Oscillator Input Current V OSC =VVcc 100 µA V OSC = 0V −100 µA DIGITAL INTERFACE (DATA, CLK, LE, ENIF, ENRF, Ftest/LD, FLoutRF, FLoutIF) V IH High-Level Input Voltage 2.7 ≤ V Vcc ≤ 3.2 1.6 V 3.2< V Vcc ≤ 5.5 2 V V IL Low-Level Input Voltage 0.4 V I IH High-Level Input Current V IH =VCC −1.0 1.0 µA I IL Low-Level Input Current V IL = 0 −1.0 1.0 µA V OH High-Level Output Voltage I OH = −500 µA V CC −0.4 V V OL Low-Level Output Voltage I OL = 500 µA 0.4 V MICROWIRE INTERFACE TIMING T CS Data to Clock Set Up Time See Data Input Timing 50 ns T CH Data to Clock Hold Time See Data Input Timing 10 ns T CWH Clock Pulse Width High See Data Input Timing 50 ns T CWL Clock Pulse Width Low See Data Input Timing 50 ns T ES Clock to Load Enable Set Up Time See Data Input Timing 50 ns T EW Load Enable Pulse Width See Data Input Timing 50 ns PHASE NOISE L F1Hz(f) RF RF Synthesizer’s Normalized Phase Noise Contribution, Fractional Mode (Note 4) RF_OM = 1 (Fractional Mode) f=3KHz TCXO Reference Source RF_CP=1(4mA) V ENIF = LOW −208 dBc/Hz RF Synthesizer’s Normalized Phase Noise Contribution, Integer Mode (Note 4) RF_OM = 0 (Integer Mode) f=3KHz TCXO Reference Source RF_CP=2(4mA) V ENIF = LOW −215 dBc/Hz L F1Hz(f) IF IF Synthesizer’s Normalized Phase Noise Contribution (Note 4) f=3KHz TCXO Reference Source IF_CP = 1 (800 mA) V ENRF = LOW −212 dBc/Hz Note 3: Some reference divider ratios between the minimum and maximum are not realizable. See the section on R divider programming for more details. Note 4: Normalized Phase Noise Contribution is defined as: LF1Hz(f) = L(f) – 20·log(N) – 10log(fCOMP) where L(f) is defined as the single side band phase noise measured at an offset frequency, f, ina1Hz Bandwidth. The offset frequency, f, must be chosen sufficiently smaller than the PLL’s loop bandwidth, yet large enough to avoid substantial phase noise contribution from the reference source. www.national.com 6 |
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