CDCE62002 Datasheet, PDF (1/49 Pages) Texas Instruments – Four Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs

CDCE62002
www.ti.com.............................................................................................................................................................. SCAS882A – JUNE 2009 – REVISED JULY 2009
Four Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs
FEATURES
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• Frequency Synthesizer With PLL/VCO and
Partially Integrated Loop Filter
• Fully Configurable Outputs Including
Frequency and Output Format
• Smart Input Multiplexer Automatically
Switches Between one of two Reference
Inputs.
• Multiple Operational Modes Include Clock
Generation via Crystal, SERDES Startup Mode,
Jitter Cleaning, and Oscillator Based Holdover
Mode.
• Integrated EEPROM Determines Device
Configuration at Power-up.
• Excellent Jitter Performance
• Integrated Frequency Synthesizer Including
PLL, Multiple VCOs, and Loop Filter:
– Full Programmability Facilitates Phase
Noise Performance Optimization Enabling
Jitter Cleaner Mode
– Programmable Charge Pump Gain and
Loop Filter Settings
– Unique Dual-VCO Architecture Supports a
Wide Tuning Range 1.750 GHz – 2.356 GHz.
• Universal Output Blocks Support up to 2
Differential, 4 Single-Ended, or Combinations
of Differential or Single-Ended:
– 0.5 ps RMS (10 kHz to 20 MHz) Output
Jitter Performance
– Low Output Phase Noise: –130 dBc/Hz
at 1 MHz offset, Fc = 491.52 MHz
– Output Frequency Ranges From 10.94
MHz to 1.175 GHz in Synthesizer Mode
– LVPECL, LVDS and LVCMOS
– Independent Output Dividers Support
Divide Ratios for
1,2,3,4,5,8,10,12,16,20,24 and 32.
• Flexible Inputs With Innovative Smart
Multiplexer Feature:
– Two Universal Differential Inputs Accept
Frequencies from 1 MHz up to 500 MHz
(LVPECL), 500 MHz (LVDS), or 250 MHz
(LVCMOS).
– One Auxiliary Input Accepts Single Ended
Clock Source or Crystal. Auxiliary Input
Accepts Crystals in the Range of
2MHz–42MHz or an LVCMOS Input up to
75MHz.
– Clock Generator Mode Using Crystal Input
– Smart Input Multiplexer can be Configured
to Automatically Switch Between Highest
Priority Clock Source Available Allowing
for Fail-Safe Operation.
• Typical Power Consumption 750mW at 3.3V
• Integrated EEPROM Stores Default Settings;
Therefore, the Device can Power up in a
Known, Predefined State.
• Offered in QFN-32 Package
• ESD Protection Exceeds 2kV HBM
• Industrial Temperature Range –40°C to 85°C
APPLICATIONS
• Data Converter and Data Aggregation Clocking
• Wireless Infrastructure
• Switches and Routers
• Medical Electronics
• Military and Aerospace
• Industrial
• Clock Generation and Jitter Cleaning
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated