LMH0376 Reclocker Datasheet

LMH0376 Datasheet, PDF, Equivalent


Part Number

LMH0376

Description

3 Gbps HD/SD SDI Low Power Reclocker

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download LMH0376 Datasheet


LMH0376
LMH0376
www.ti.com
SNAS583A – APRIL 2012 – REVISED JULY 2013
LMH0376
3 Gbps HD/SD SDI Low Power Reclocker with Integrated Eye Monitor
and 4:1 Input Mux
Check for Samples: LMH0376
FEATURES
1
• SMPTE ST 424, SMPTE ST 292, and SMPTE ST
259-C Compliant
• Supports 125 Mbps, 270 Mbps, 1.4835 Gbps,
1.485 Gbps, 2.967 Gbps, and 2.97 Gbps Serial
Data Rate Operation
• Supports DVB-ASI at 270 Mbps and MADI at
125 Mbps
• 100 mW Typical Power Consumption (145 mW
with Both Output Drivers Enabled)
• Integrated 4:1 Multiplexed Input with 0-60” FR4
Equalizer and Independent Signal Detect on
Each Channel
• Two Differential, Reclocked Outputs with
Option of Recovered Clock
• Output De-Emphasis to Compensate for up to
40” of FR4 Trace Losses
• 64 x 64 Point Eye Opening Monitor
• 27 MHz External Reference or Reference-less
Operation
• Internally Terminated 100Inputs with Rail-to-
Rail Input Common Mode Voltage
• Internally Terminated 100LVDS Outputs with
Programmable Output Common Mode Voltage
and Swing
• Single 2.5V Supply Operation
• Power Save Mode with Device Power Down
Control
• 48-Pin WQFN Package (7 x 7 mm)
• Industrial Temperature Range: -40°C to +85°C
• Footprint Compatible with the LMH0356 in Pin
Mode
APPLICATIONS
• SMPTE ST 424, SMPTE ST 292, and SMPTE ST
259 Serial Digital Interfaces
• Broadcast Video Routers, Switchers, and
Distribution Amplifiers
DESCRIPTION
The LMH0376 3 Gbps HD/SD SDI Low Power
Reclocker with Integrated Eye Monitor and 4:1 Input
Mux retimes serial digital video data conforming to
the SMPTE ST 424, SMPTE ST 292, and SMPTE ST
259-C standards. The reclocker operates at serial
data rates of 125 Mbps, 270 Mbps, 1.4835 Gbps,
1.485 Gbps, 2.967 Gbps, and 2.97 Gbps.
The LMH0376 automatically detects the incoming
data rate and retimes the data to suppress
accumulated jitter. The reclocker recovers the serial
data-rate clock and optionally provides it as an
output.
The LMH0376 includes an integrated 4:1 input
multiplexer for selecting one of four input data
streams for retiming. Each of the four inputs has an
FR4 equalizer capable of equalizing 0-60” of FR4
trace length. Each input also includes independent
signal detection with a programmable threshold.
The LMH0376 has two differential serial data outputs
and offers flexibility in selecting the output signals
between the reclocked data, recovered clock,
bypassed data, or the bypassed data from an
independently selected input channel. The output
drivers offer programmable de-emphasis for up to 40”
of FR4 trace losses, in addition to programmable
common mode voltage and swing for flexible
interfacing.
The LMH0376 provides a 64 x 64 point eye monitor
for analyzing the eye quality of the incoming signal.
The LMH0376 supports two modes of operation. In
pin mode, the LMH0376 operates with control pins to
set its operating state, and is footprint compatible with
the LMH0356 reclocker. In SPI mode, an optional SPI
serial interface can be used to configure and monitor
multiple LMH0376 devices in a daisy-chain
configuration.
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.
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 © 2012–2013, Texas Instruments Incorporated

LMH0376
LMH0376
SNAS583A – APRIL 2012 – REVISED JULY 2013
Typical Application
LMH0395
Equalizer
LMH0395
Equalizer
LMH0395
Equalizer
LMH0395
Equalizer
Block Diagram
SPI Interface
Control Pins
Control
Logic
LMH0376
Reclocker
LMH0376
Reclocker
LMH030x
Cable Driver
LMH030x
Cable Driver
LMH030x
Cable Driver
LMH030x
Cable Driver
www.ti.com
SVA-30149001
Secondary
Input Select
Eye
Monitor
Bypassed Data
SDO1
Output
Select
SDO1
SDI0
SDI1
SDI2
SDI3
FR4 EQ
FR4 EQ
FR4 EQ
FR4 EQ
Primary
Input
Select
Clock and
Data
Recovery
SDO0
Output
Select
Bypassed Data
SDO0
SVA-30149003
2 Submit Documentation Feedback
Product Folder Links: LMH0376
Copyright © 2012–2013, Texas Instruments Incorporated


Features LMH0376 www.ti.com SNAS583A – APRIL 2012 – REVISED JULY 2013 LMH0376 3 G bps HD/SD SDI Low Power Reclocker with Integrated Eye Monitor and 4:1 Input Mu x Check for Samples: LMH0376 FEATURES 1 • SMPTE ST 424, SMPTE ST 292, and S MPTE ST 259-C Compliant • Supports 12 5 Mbps, 270 Mbps, 1.4835 Gbps, 1.485 Gb ps, 2.967 Gbps, and 2.97 Gbps Serial Da ta Rate Operation • Supports DVB-ASI at 270 Mbps and MADI at 125 Mbps • 10 0 mW Typical Power Consumption (145 mW with Both Output Drivers Enabled) • I ntegrated 4:1 Multiplexed Input with 0- 60” FR4 Equalizer and Independent Sig nal Detect on Each Channel • Two Diff erential, Reclocked Outputs with Option of Recovered Clock • Output De-Empha sis to Compensate for up to 40” of FR 4 Trace Losses • 64 x 64 Point Eye Op ening Monitor • 27 MHz External Refer ence or Reference-less Operation • In ternally Terminated 100Ω Inputs with Rail-to- Rail Input Common Mode Voltage • Internally Terminated 100Ω LVDS Outputs with Programmable Output Common Mode Voltage and S.
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