Datasheet Texas Instruments CDCE421 — Datenblatt

CDCE421
www.ti.com. SCAS842B – APRIL 2007 – REVISED JANUARY 2009 Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator FEATURES 1 Single 3.3-V Supply High-Performance Clock Generator
Incorporating Crystal-Oscillator Circuitry With
Integrated Frequency Synthesizer Low-Output Jitter: As Low as 380 fs (rms
Integrated Between 10 kHz–20 MHz) Low Phase Noise at High Frequency: at 708
MHz it is less than –109 dBc/Hz at 10-kHz and
–146 dBc/Hz at 10-MHz Offset from the Carrier Supports Crystal Frequencies Between
27.35 MHz to 38.33 MHz Output Frequency Ranges from 10.9 MHz up to
766.7 MHz and from 875.2 MHz up to 1175 MHz Low-Voltage Differential Signaling (LVDS)
Output, 100-Ω Differential Off-Chip
Termination, 10.9-MHz to 400-MHz Frequency
Range
2 Differential Low-Voltage Positive
Emitter-Coupled Logic (LVPECL) Output,
10.9-MHz to 1.175-GHz Frequency Range
Two Fully Integrated Voltage-Controlled
Oscillators (VCOs) Support Wide Output
Frequency Range
Fully Integrated Programmable Loop Filter
Typical Power Consumption: 274 mW in LVDS
Mode and 250 mW in LVPECL Mode
Chip-Enable Control Pin
Simple Serial Interface Allows Programming …