LVPECL

6

6

2

Reference

Generator

GND

GND

OUTP[11...6]

OUTN[11...6]

LVPECL

6

6

OUTP[5...0]

OUTN[5...0]

V

CC

V

AC_REF[1, 0]

V

CC

V

CC

V

CC

V

CC

V

CC

INP0

INN0

INP1

INN1

CDCLVP2106

www.ti.com

SCAS887A

– SEPTEMBER 2009 – REVISED AUGUST 2011

12 LVPECL Output, High-Performance Clock Buffer

Check for Samples: CDCLVP2106

1

FEATURES

DESCRIPTION

The CDCLVP2106 is a highly versatile, low additive

2

•

Dual 1:6 Differential Buffer

jitter buffer that can generate 12 copies of LVPECL

•

Two Clock Inputs

clock outputs from two LVPECL, LVDS, or LVCMOS

•

Universal Inputs Can Accept LVPECL, LVDS,

inputs for a variety of communication applications. It

LVCMOS/LVTTL

has a maximum clock frequency up to 2 GHz. Each

buffer block consists of one input that feeds two

•

12 LVPECL Outputs

LVPECL

outputs.

The

overall

additive

jitter

•

Maximum Clock Frequency: 2 GHz

performance is less than 0.1 ps, RMS from 10 kHz to

•

Maximum Core Current Consumption: 92 mA

20 MHz, and overall output skew is as low as 20 ps,

making the device a perfect choice for use in

•

Very Low Additive Jitter:

<100 fs,rms in 10-kHz

demanding applications.

to 20-MHz Offset Range

The CDCLVP2106 clock buffer distributes two clock

•

2.375-V to 3.6-V Device Power Supply

inputs (IN0, IN1) to 12 pairs of differential LVPECL

•

Maximum Propagation Delay: 550 ps

clock outputs (OUT0, OUT11) with minimum skew for

•

Maximum Within Bank Output Skew: 20 ps

clock distribution. Each buffer block consists of one

•

input that feeds two LVPECL clock outputs. The

inputs can be LVPECL, LVDS, or LVCMOS/LVTTL.

for Capacitive-Coupled Inputs

•

Industrial Temperature Range:

–40°C to +85°C

The CDCLVP2106 is specifically designed for driving

50-

Ω transmission lines. When driving the inputs in

•

Available in 6-mm

× 6-mm QFN-40 (RHA)

single-ended

mode,

the

LVPECL

bias

voltage

Package

•

ESD Protection Exceeds 2 kV (HBM)

input pin. However, for high-speed performance up to

2 GHz, differential mode is strongly recommended.

APPLICATIONS

The CDCLVP2106 is characterized for operation

•

Wireless Communications

from

–40°C to +85°C and is available in a QFN-40,

•

Telecommunications/Networking

6-mm

× 6-mm package.

•

Medical Imaging

•

Test and Measurement Equipment

1

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.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2009–2011, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.