IC ADAPTIVE CBL EQUALIZER 16-LLP

LMH0074SQE/NOPB

Manufacturer Part NumberLMH0074SQE/NOPB
DescriptionIC ADAPTIVE CBL EQUALIZER 16-LLP
ManufacturerNational Semiconductor
LMH0074SQE/NOPB datasheet
 


Specifications of LMH0074SQE/NOPB

ApplicationsDisplaysInterfaceSerial
Voltage - Supply3.135 V ~ 3.465 VPackage / Case16-LLP
Mounting TypeSurface MountIc FunctionAdaptive Cable Equalizer
Supply Voltage Range3.135V To 3.465VOperating Temperature Range-40°C To +85°C
Digital Ic Case StyleLLPNo. Of Pins16
MslMSL 1 - UnlimitedRohs CompliantYes
Input Voltage3.3 VSupply Voltage (max)3.45 V
Supply Voltage (min)3.15 VMaximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 CMounting StyleSMD/SMT
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther namesLMH0074SQE
LMH0074SQE
LMH0074SQETR
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SMPTE 259M / 344M Adaptive Cable Equalizer
General Description
The LMH0074 SMPTE 259M / 344M Adaptive Cable Equal-
izer 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 540 Mbps and supports SMPTE 259M and SMPTE
344M.
The LMH0074 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 pro-
vided to mute the output at a selectable level of signal degra-
dation.
Typical Application
© 2009 National Semiconductor Corporation
LMH0074
Features
SMPTE 259M and SMPTE 344M compliant
Supports DVB-ASI at 270 Mbps
Data rates: 125 Mbps to 540 Mbps
Equalizes up to 400 meters of Belden 1694A at 270 Mbps
Manual bypass and output mute with a programmable
threshold
Single-ended or differential input
50Ω differential outputs
Single 3.3V supply operation
Industrial temperature range: −40°C to +85°C
208mW typical power consumption with 3.3V supply
Footprint compatible with the LMH0044 and the GS9074A
Applications
SMPTE 259M and SMPTE 344M serial digital interfaces
Serial digital data equalization and reception
Data recovery equalization
300275
August 27, 2009
30027501
www.national.com

LMH0074SQE/NOPB Summary of contents

  • Page 1

    ... A programmable mute reference is pro- vided to mute the output at a selectable level of signal degra- dation. Typical Application © 2009 National Semiconductor Corporation LMH0074 Features ■ SMPTE 259M and SMPTE 344M compliant ■ ...

  • Page 2

    Absolute Maximum Ratings Supply Voltage Input Voltage (all inputs) Storage Temperature Range Junction Temperature Lead Temperature (Soldering 4 Sec) Package Thermal Resistance  θ 16-pin LLP JA  θ 16-pin LLP JC ESD Rating (HBM) ESD Rating (MM) DC Electrical Characteristics Over ...

  • Page 3

    AC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter BR Minimum Input Data Rate MIN BR Maximum Input Data Rate MAX Jitter for various Cable Lengths (with equalizer pathological Output Rise Time, ...

  • Page 4

    Connection Diagram Pin Descriptions Pin # Name Description 1 V Negative power supply (ground SDI Serial data true input. 3 SDI Serial data complement input Negative power supply (ground AEC+ AEC loop filter external ...

  • Page 5

    Block Diagram Device Operation BLOCK DESCRIPTION The Equalizer Filter block is a multi-stage adaptive filter. If Bypass is high, the equalizer filter is disabled. The DC Restoration / Level Control block receives the dif- ferential signals from the equalizer filter ...

  • Page 6

    Application Information PCB LAYOUT RECOMMENDATIONS Please refer to the following Application Note on National's website: AN-1372, “LMH0034 PCB Layout Techniques.” The PCB layout techniques in the application note apply to the LMH0074 as well. SUPPLY CURRENT VS. CABLE LENGTH The ...

  • Page 7

    Physical Dimensions inches (millimeters) unless otherwise noted 16-Pin LLP Order Number LMH0074SQ NS Package Number SQB16A 7 www.national.com ...

  • Page 8

    ... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...