CDCLVC1310 Datasheet, PDF (1/28 Pages) Texas Instruments – Ten-Output Low-Jitter Low-Power Clock Buffer

CDCLVC1310
www.ti.com
SCAS917B – JULY 2011 – REVISED FEBRUARY 2012
Ten-Output Low-Jitter Low-Power Clock Buffer
Check for Samples: CDCLVC1310
FEATURES
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• High-Performance Crystal Buffer With Ultralow
Noise Floor of –169 dBc/Hz
• Additive Phase Noise/Jitter Performance Is
25 fs_RMS (Typ.)
• Operates with 3.3-V/2.5-V Core and
3.3-V/2.5-V/1.8-V/1.5-V Output Supply
• Device inputs consist of primary, secondary
and crystal inputs and can be selected
manually (through pins) using the input MUX.
The primary and secondary inputs can accept
LVPECL, LVDS, HCSL, SSTL or LVCMOS
signals and crystal input.
– Crystal Frequencies Supported Are From
8 MHz to 50 MHz
– Differential and Single-Ended Input
Frequencies Supported Are up to 200 MHz
• 10 Single-Ended LVCMOS Outputs. The
outputs can operate at 1.5-V, 1.8-V, 2.5-V or
3.3-V Power-Supply Voltage.
– LVCMOS Outputs Operate up to 200 MHz
– Output Skew Is 30 ps (typ)
– Total Propagation Delay Is 2 ns (typ)
– Synchronous and Glitch-Free Output
Enable Is Available
• Offered in QFN-32 5-mm × 5-mm Package With
Industrial Temperature Range of –40°C to 85°C
• Crystal Input Can Be Overdriven With
LVCMOS Signal up to 50 MHz
APPLICATIONS
• Wireless and Wired Infrastructure
• Networking and Data Communications
• Medical Imaging
• Portable Test and Measurement
• High-End A/V
DESCRIPTION
The CDCLVC1310 is a highly versatile, low-jitter,
low-power clock fanout buffer which can distribute to
ten low-jitter LVCMOS clock outputs from one of
three inputs, whose primary and secondary inputs
can feature differential or single-ended signals and
crystal input. Such a buffer is intended for use in a
variety of mobile and wired infrastructure, data
communication, computing, low-power medical
imaging, and portable test and measurement
applications. When the input is an illegal level, the
output is at a defined state. The core can be set to
2.5 V or 3.3 V, and output can be set to 1.5 V, 1.8 V,
2.5 V or 3.3 V. The CDCLVC1310 can be easily
configured through pin programming. The overall
additive jitter performance is 25 fs_RMS (typ). The
CDCLVC1310 is packaged in a small 32-pin 5-mm ×
5-mm QFN package.
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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.
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