LMH0026

www.ti.com

SNLS253B – MARCH 2008 – REVISED APRIL 2013

LMH0026 SD SDI Reclocker with Dual Differential Outputs

Check for Samples: LMH0026

1

FEATURES

DESCRIPTION

The LMH0026 SD SDI Reclocker retimes serial digital

2

•

Supports SMPTE 259M (C) Serial Digital Video

video data conforming to the SMPTE 259M (C)

Standard

standard. The LMH0026 operates at the serial data

•

Supports 270 Mbps Serial Data Rate Operation

rate of 270 Mbps and also supports DVB-ASI

•

Supports DVB-ASI at 270 Mbps

operation at 270 Mbps.

•

Single 3.3V Supply Operation

The LMH0026 retimes the incoming data to suppress

accumulated jitter. The LMH0026 recovers the serial

•

330 mW Typical Power Consumption

data-rate clock and optionally provides it as an

•

Two Differential, Reclocked Outputs

output. The LMH0026 has two differential serial data

•

Choice of Second Reclocked Output or Low-

outputs; the second output may be selected as a low-

Jitter, Differential, Data-Rate Clock Output

jitter, data-rate clock output. Controls and indicators

are: serial clock or second serial data output select,

•

Single 27 MHz External Crystal or Reference

SD indicator output, lock detect output, auto/manual

Clock Input

data bypass, and output mute. The serial data inputs,

•

Lock Detect Indicator Output

outputs, and serial data-rate clock outputs are

•

Output Mute Function for Data and Clock

differential LVPECL compatible. The CML serial data

and serial data-rate clock outputs are suitable for

•

Auto/Manual Reclocker Bypass

driving 100

Ω differentially terminated networks. The

•

Differential LVPECL Compatible Serial Data

control

logic

inputs

and

outputs

are

LVCMOS

Inputs and Outputs

compatible.

•

LVCMOS Control Inputs and Indicator Outputs

The LMH0026 is powered from a single 3.3V supply.

•

20-Pin HTSSOP Package

Power dissipation is typically 330 mW. The device is

•

Industrial Temperature Range: -40°C to +85°C

housed in a 20-pin HTSSOP package.

•

Footprint Compatible with the LMH0046 and

LMH0346

APPLICATIONS

•

SDTV Serial Digital Video Interfaces for:

–

Digital Video Routers and Switchers

–

Digital Video Processing and Editing

Equipment

–

DVB-ASI Equipment

–

Video Standards and Format Converters

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 © 2008–2013, 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.