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ICs für serielle digitale Schnittstelle (SDI)

LMH0344

AKTIV

3G HD/SD SDI adaptiver Kabelentzerrer

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Datenblatt

LMH0344

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Function Equalizer Supply voltage (V) 3.3 Power consumption (mW) 280 Data rate (max) (Mbps) 2970 Control interface Pin Operating temperature range (°C) -40 to 85
Function Equalizer Supply voltage (V) 3.3 Power consumption (mW) 280 Data rate (max) (Mbps) 2970 Control interface Pin Operating temperature range (°C) -40 to 85
CS-BGA (NYA) 25 9 mm² 3 x 3 WQFN (RUM) 16 16 mm² 4 x 4
  • Compliant With ST 424, ST 292, ST 344, and ST
    259
  • Supports DVB-ASI at 270 Mbps
  • Wide Range of Data Rates: 125 Mbps to 2.97
    Gbps
  • Equalizes up to 120 Meters of Belden 1694A at
    2.97 Gbps, up to 140 Meters of Belden 1694A at
    1.485 Gbps, or up to 400 Meters of Belden 1694A
    at 270 Mbps
  • Equalizes up to 120m of Belden 1694A 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-Ω Differential Outputs (Internal 50-Ω Pullups)
  • Single 3.3-V Supply Operation
  • 280-mW Typical Power Consumption
  • 16-Pin WQFN or 25-Ball CS-BGA Package
  • Industrial Temperature Range: –40°C to +85°C
  • HBM ESD Rating: 8 kV
  • WQFN Version Footprint Compatible With the
    LMH0044, LMH0384, and LMH0074
  • Replaces the Semtech GS2974A or GS2974B
  • Compliant With ST 424, ST 292, ST 344, and ST
    259
  • Supports DVB-ASI at 270 Mbps
  • Wide Range of Data Rates: 125 Mbps to 2.97
    Gbps
  • Equalizes up to 120 Meters of Belden 1694A at
    2.97 Gbps, up to 140 Meters of Belden 1694A at
    1.485 Gbps, or up to 400 Meters of Belden 1694A
    at 270 Mbps
  • Equalizes up to 120m of Belden 1694A 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-Ω Differential Outputs (Internal 50-Ω Pullups)
  • Single 3.3-V Supply Operation
  • 280-mW Typical Power Consumption
  • 16-Pin WQFN or 25-Ball CS-BGA Package
  • Industrial Temperature Range: –40°C to +85°C
  • HBM ESD Rating: 8 kV
  • WQFN Version Footprint Compatible With the
    LMH0044, LMH0384, and LMH0074
  • Replaces the Semtech GS2974A or GS2974B

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.

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.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMH0344 3-Gbps HD - SD SDI Adaptive Cable Equalizer datasheet (Rev. O) PDF | HTML 01 Jul 2015
Application note 3G-SDI Cable Equalizer Compatibility Guide – TI / MACOM 13 Sep 2017
Application note 3G-SDI Cable Equalizer Compatibility Guide – TI / Semtech 13 Sep 2017
Selection guide Broadcast and Professional Video Interface Solutions (Rev. E) 05 Apr 2017
Application note AN-1943 Understanding Serial Digital Video Bit Rates (Rev. A) 26 Apr 2013
Application note AN-1972 Board Layout Challenges in Serial Digital Interface (Rev. C) 26 Apr 2013
Application note AN-2145 Power Considerations for SDI Products (Rev. B) 26 Apr 2013
Application note AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) 26 Apr 2013
Application note Replacing the CLC012 Adaptive Cable Equalizer with the LMH0074 (Rev. A) 26 Apr 2013
Application note Replacing the CLC014 Adaptive Cable Equalizer with the LMH0074 (Rev. A) 26 Apr 2013
Application note Triple Rate SDI IP FPGA Resource Utilization on SDXILEVK/AES-EXP-SDI-G Ref Dsgn (Rev. A) 26 Apr 2013
EVM User's guide LMH0344 Evaluation Board User Guide, Rev. 1.1 21 Feb 2012
Application note High-Speed Board Layout Challenges in FPGA/SDI Sub-Systems 12 Nov 2009
Application note 3G-SDI: 32 Loop Cascade Analysis 23 Okt 2008
Application note DS25CP104 in 3G SDI Router Application 20 Aug 2008
Design guide Broadcast Video Owner's Manual 17 Nov 2006

Design und Entwicklung

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