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Description
The LMH0344 3-Gbps HD – SD SDI Adaptive Cable Equalizer is designed to equalize data transmitted over cable (or any media with similar dispersive loss characteristics). The equalizer operates over a wide range of data rates from 125 Mbps to 2.97 Gbps and supports ST 424, ST 292, ST 344, and ST 259. The LMH0344 device implements DC restoration to correctly handle pathological data conditions. The equalizer may be driven in either a single-ended or differential configuration. Additional features include separate carrier detect and output mute pins which may be tied together to mute the output when no signal is present. A programmable mute reference is provided to mute the output at a selectable level of signal degradation. For applications using the 4:4:4:4 10 bits video format, the LMH0394 cable equalizer will provide better performance. The device is available in two space-saving packages: a 4-mm × 4-mm 16-pin WQFN and even more space-efficient 3-mm × 3-mm 25-ball CS-BGA package.
Title
3 Gbps HD/SD SDI Adaptive Cable Equalizer
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2.97 Gbps, to 140 Meters of Belden at 1.485 Gbps, to 400 Meters of Belden at 270 Mbps Equalizes 120m of Belden at 2.97 Gbps With 0.3 UI Maximum Output Jitter Manual Bypass and Output Mute With a Programmable Threshold Single-Ended or Differential Input 50- Differential Outputs (Internal 50- Pullups) Single 3.3-V Supply Operation 280-mW Typical Power Consumption 16-Pin WQFN or 25-Ball CS-BGA Package Industrial Temperature Range: to +85°C HBM ESD Rating: 8 kV WQFN Version Footprint Compatible With the LMH0044, LMH0384, and LMH0074 Replaces the Semtech or GS2974B
The SD SDI Adaptive Cable Equalizer is designed to equalize data transmitted over cable (or any media with similar dispersive loss characteristics). The equalizer operates over a wide range of data rates from 125 Mbps to 2.97 Gbps and supports ST 344, and ST 259.
The LMH0344 device implements DC restoration to correctly handle pathological data conditions. The equalizer may be driven in either a single-ended or differential configuration.
Additional features include separate carrier detect and output mute pins which may be tied together to mute the output when no signal is present. A programmable mute reference is provided to mute the output at a selectable level of signal degradation.
For applications using the 4:4:4:4 10 bits video format, the LMH0394 cable equalizer will provide better performance.
The device is available in two spacesaving packages: 4-mm 16-pin WQFN and even more space-efficient 3-mm 25-ball CS-BGA package.
(1) Due to SMPTE naming convention, all SMPTE Engineering Documents will be numbered as a two-letter prefix and a number. Documents and references with the same root number and year are functionally identical; for example ST 424-2006 and SMPTE 424M-2006 refer to the same document.
(1) For all available packages, see the orderable addendum at the end of the data sheet.An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.Fixed typo in Features bullet to change "Equalizes 120m of Belden 1694A" to "Equalizes 120m of Belden : 1
Added, updated, or renamed the following sections: Device Information Table, Pin Configuration and Functions; Specifications; Applications and Implementation; Detailed Description; Layout;Device and Documentation Support; Mechanical, Packaging, and Ordering Information : 1
Changed "RGB data patterns" "4:4:4:4 10-bit video format" in Description section : 1The exposed die attach pad is a negative electrical terminal for this device. It should be connected to the negative power supply voltage.
DESCRIPTIONBypasses equalization and DC restoration when high. No equalization occurs in this mode. This pin does not have an internal pulldown. If the bypass function is not used, this pin requires an external pulldown resistor to disable bypass.
Carrier detect. CD is high when no signal is present. CD has no function in BYPASS mode.Output mute. To disable the mute function and enable the output, MUTE must be tied to GND or a low level signal. To force the outputs to a muted state, tie to VCC. CD may be tied to this pin to inhibit the output when no input signal is present. MUTE has no function in BYPASS mode.
Mute reference. Sets the threshold for CD and (with CD tied to MUTE) determines the maximum cable to be equalized before muting. MUTEREF may be either unconnected or connected to ground for maximum equalization.
Ground Negative power supply (ground). Note Figure 7 for layout example.Some Part number from the same manufacture
Same catergory
241 buyer reviews from United Kingdom
Jamie
Length of registration:3 years
All working fine, great quality! Fast shipment and great price! Totally recommended!
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12/07/2022
FOUNDRY ARIENTE SA
Length of registration:15 years
Thank you very much to the seller all delivered on time and the goods correspond to the description. Measured some, and are within the standard.
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11/11/2022
Paul
Length of registration:13 years
The things I bought are very satisfactory and practical
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10/17/2022
phil simmons
Length of registration:9 years
nice components
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10/17/2017
John Connolly
Length of registration:9 years
High quality components and excellent fast service.
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01/09/2017
Lance Welsh
Length of registration:11 years
Excellent service
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12/29/2016
Neil Walkley
Length of registration:8 years
Received in good condition
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11/30/2016
C.B.Ashmore
Length of registration:7 years
Excellent service, may thanks
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11/24/2016
Gary Beddows
Length of registration:7 years
Fantastic
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09/19/2016
Robert
Length of registration:7 years
Excellent really pleased i have now repaired my Pioneer av receiver. Many Thanks You guys. Don,t listen to the lies on the net. great service and people. Robert
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09/13/2016
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All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
LMH0344SQ/NOPB
LMH0344SQ/NOPB has several brands around the world that may have alternate names for LMH0344SQ/NOPB due to regional differences or acquisition. LMH0344SQ/NOPB may also be known as the following names:
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