SNLS315H April   2010  – August 2015 LMH0387

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Control Pin Electrical Characteristics
    6. 6.6  Input Mode (Equalizer) DC Electrical Characteristics
    7. 6.7  Output Mode (Cable Driver) DC Electrical Characteristics
    8. 6.8  Input Mode (Equalizer) AC Electrical Characteristics
    9. 6.9  Output Mode (Cable Driver) AC Electrical Characteristics
    10. 6.10 Input Mode (Equalizer) SPI Interface AC Electrical Characteristics
    11. 6.11 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Mode (Equalizer) Description
        1. 7.3.1.1 Input Interfacing
        2. 7.3.1.2 Output Interfacing
        3. 7.3.1.3 Carrier Detect (CD)
        4. 7.3.1.4 Carrier Detect Threshold (CDTHRESH)
        5. 7.3.1.5 Auto Sleep
      2. 7.3.2 Output Mode (Cable Driver) Description
        1. 7.3.2.1 Input Interfacing
        2. 7.3.2.2 Output Interfacing
        3. 7.3.2.3 Output Slew Rate Control
        4. 7.3.2.4 Output Enable
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 Output Mode (Cable Driver)
      2. 7.5.2 Input Mode (Equalizer)
      3. 7.5.3 Input Mode (Equalizer) SPI Register Access
        1. 7.5.3.1 SPI Write
        2. 7.5.3.2 SPI Read
        3. 7.5.3.3 Output Driver Adjustments (Register 01h)
          1. 7.5.3.3.1 Output Swing
          2. 7.5.3.3.2 Offset Voltage
        4. 7.5.3.4 Launch Amplitude Optimization (Register 02h)
          1. 7.5.3.4.1 Coarse Control
          2. 7.5.3.4.2 Fine Control
        5. 7.5.3.5 Cable Length Indicator (CLI (Register 03h)
      4. 7.5.4 Input Mode (Equalizer) SPI Register Access
        1. 7.5.4.1 General Control (Register 00h)
          1. 7.5.4.1.1 Carrier Detect
          2. 7.5.4.1.2 Mute
          3. 7.5.4.1.3 Sleep Mode
          4. 7.5.4.1.4 Extended 3G Reach Mode
    6. 7.6 Register Maps
      1. 7.6.1 SPI Registers
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 General Guidance for Applications
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • ST 424, ST 292, ST 344, and ST 259 Compliant (11)
  • Supports DVB-ASI at 270 Mbps
  • Data Rates: 125 Mbps to 2.97 Gbps when Receiving (DC to 2.97 Gbps when Driving Cable)
  • Equalizes up to 120 Meters of Belden 1694A at 2.97 Gbps, up to 200 Meters of Belden 1694A at 1.485 Gbps, or up to 400 Meters of Belden 1694A at 270 Mbps
  • Integrated Return Loss Network (No External Components Required)
  • Power Saving Modes
  • Cable Driver Selectable Slew Rate
  • Internally Terminated 100-Ω LVDS Receiver Outputs With Programmable Common Mode Voltage and Swing
  • Programmable Launch Amplitude Optimization for Receiver
  • Cable Length Indication
  • Single 3.3-V Supply Operation
  • 48-Pin Laminate TLGA Package
  • Industrial Temperature Range: −40°C to 85°C

2 Applications

  • ST 424 (SMPTE 424M), ST 292 (SMPTE 292M), and ST 259 (SMPTE 259M) Serial Digital Interfaces (11)
  • Digital Video Servers and Modular Equipment
  • Video Encoders and Decoders
  • Distribution Amplifiers

3 Description

The LMH0387 3 Gbps HD/SD SDI Configurable I/O Adaptive Cable Equalizer / Cable Driver provides a single chip interface to a BNC. The device can be configured either in the input mode as an equalizer to receive data over coaxial cable or in the output mode as a cable driver to transmit data over coaxial cable. The same I/O pin is used both for the input and the output functions of the device, allowing the system designer the flexibility to use a BNC attached to the device as either an input or an output.

The device operates over a wide range of data rates from 125 Mbps to 2.97 Gbps (DC to 2.97 Gbps when driving cable) and supports ST 424, ST 292, ST 344, and ST 259. The return loss network is integrated within the device so no external components are required to meet the SMPTE return loss specification. The LMH0387 offers designers flexibility in system design and quicker time to market.

In the input mode, the LMH0387 features include a power-saving sleep mode, programmable output common mode voltage and swing, cable length indication, launch amplitude optimization, input signal detection, and an SPI interface. In the output mode, the LMH0387 features include two selectable slew rates for ST 424 / 292 and ST 259 compliance, and output driver power-down control.

The device is available in a 7-mm × 7-mm 48-pin laminate Thin Laminate Grid Array (TLGA) Package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMH0387 TLGA (48) 7.00 mm × 7.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application

LMH0387 30104423.gif

4 Revision History

Changes from G Revision (April 2013) to H Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

Changes from F Revision (April 2013) to G Revision

  • Changed layout of National Data Sheet to TI formatGo