Ultrafast, SiGe, Open-Collector

HVDS Clock/Data Buffer

Data Sheet

ADCLK914

Rev. B

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

©2008–2017 Analog Devices, Inc. All rights reserved.

Technical Support

www.analog.com

FEATURES

7.5 GHz operating frequency

160 ps propagation delay

100 ps output rise/fall

110 fs random jitter

On-chip input terminations

Extended industrial temperature range: −40°C to +125°C

APPLICATIONS

Clock and data signal restoration

High speed converter clocking

Broadband communications

Cellular infrastructure

High speed line receivers

ATE and high performance instrumentation

Level shifting

Threshold detection

FUNCTIONAL BLOCK DIAGRAM

D

D

Q

Q

50Ω

50Ω

50Ω 50Ω

ADCLK914

Figure 1.

GENERAL DESCRIPTION

The ADCLK914 is an ultrafast clock/data buffer fabricated on

the Analog Devices, Inc., proprietary, complementary bipolar

(XFCB-3) silicon-germanium (SiGe) process. The ADCLK914

features high voltage differential signaling (HVDS) outputs

suitable for driving the latest Analog Devices high speed digital-

to-analog converters (DACs). The ADCLK914 has a single,

differential open-collector output.

The ADCLK914 buffer operates up to 7.5 GHz with a 160 ps

propagation delay and adds only 110 fs random jitter (RJ).

The input has a center tapped, 100 Ω, on-chip termination

resistor and accepts LVPECL, CML, CMOS, LVTTL, or LVDS

inputs.

The HVDS output stage is designed to directly drive 1.9 V each

swing of 3.8 V.

The ADCLK914 is available in a 16-lead LFCSP. It is specified

for operation over the extended industrial temperature range of

−40°C to +125°C.