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TRF2432IRTQT Datasheet(PDF) 7 Page - Texas Instruments |
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TRF2432IRTQT Datasheet(HTML) 7 Page - Texas Instruments |
7 / 24 page www.ti.com INTEGER MODE IF SYNTHESIZER CHARACTERISTICS FRACTIONAL MODE IF SYNTHESIZER CHARACTERISTICS PLL REFERENCE/CLOCK OUTPUT CHARACTERISTICS PLL REFERENCE OSCILLATOR SPECIFICATIONS RECOMMENDED CRYSTAL SPECIFICATIONS TRF2432 SLWS177B – APRIL 2005 – REVISED NOVEMBER 2006 f REF = 44 MHz PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Frequency With 44 MHz crystal 374 MHz Settling time ±10kHz of final frequency. From 60 µs Standby to Idle measured from enable Integrated phase error 10 kHz to 10 MHz 0.2 °rms Spurious suppression > 3 MHz offset -70 dBc f REF = 40 MHz PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Frequency With 44 MHz crystal 374 MHz Settling time ±10kHz of final frequency. From 60 µs Standby to Idle measured from enable Integrated phase error 10 kHz to 10 MHz 0.1 °rms Spurious suppression 0.25 < ∆f < 3 MHz offset -45-7 ∆f dBc > 3 MHz offset -70 dBc The TRF2432 synthesizers operate from a single 40 or 44 MHz reference. The TRF2432 can generate its own PLL reference using an internal oscillator or it may also be driven from an external reference. The TRF2432 provides a user selectable, buffered clock output for base-band ASICs. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fREF Reference frequency 40 or 44 MHz Start-up time From power on. Depends on Crystal 0.5 ms characteristics Degradation to Crystal Reference From crystal series resonance. 0.25 PPM Accuracy Jitter 5 10 ps External XO drive Square-wave, must be AC Coupled 0.8 1 2 Vpp Equivalent input load Single ended 500||10 Ω||pF PARAMETER TEST CONDITIONS MIN TYP MAX UNIT f Frequency Series resonant, fundamental or 3rd 40 or 44 MHz overtone ESR Effective series resistance 100 Ω C Shunt capacitance 20 pF Maximum power handling 50 µW Frequency accuracy Over Temperature and Process 20 PPM 7 Submit Documentation Feedback |
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