LMH1980 - Auto-Detecting SD/HD/PC Video Sync Separator
Datasheet Packaging Samples & Pricing Eval. Boards Reliability Application Notes Knowledge Base

Features
Analog video sync separation for NTSC, PAL, 480I/P, 576I/P, 720P, 1080I/P/PsF, and many VESA-compatible timing formats
Composite Video (CVBS), S-Video (Y/C), and Component Video (YPBPR/GBR) and PC Graphics (RGsB) interfaces
SD/PC Bi-level sync & HD tri-level sync compatible
Composite, Horizontal, and Vertical Sync outputs
Burst/Back Porch Timing, Odd/Even Field, and HD Detect Flag outputs
Automatic video format detection
Fixed-level sync slicing for video inputs from 0.5 to 2 VPP
3.3V to 5V supply operation

General Description


The LMH1980 is an auto-detecting SD/HD/PC video sync separator ideal for use in a wide range of video applications, such as automotive LCD monitors, video capture & editing devices, surveillance & security equipment, and machine vision and inspection systems.

The LMH1980 accepts an analog video input signal with either bi-level or tri-level sync and automatically detects the video format, eliminating the need for external RSET resistor adjustment required by other sync separators (e.g.: LM1881). More...


Applications


Consumer, Professional, Automotive & Industrial Video
Video Capture, Editing, and Processing
Genlock Circuits
Surveillance & Security Video Systems
Set-Top Boxes (STB) & Digital Video Recorders (DVR)
LCD / Plasma Displays and Video Projectors
Machine Vision and Inspection Systems
Video Trigger Oscilloscopes and Waveform Monitors
 

ParametersValues
Function Sync Separator
Supported Video Formats NTSC , SECAM , SD/PC bi-level and HD tri-level sync, 720p , 1080i/p , PC Sync on Green (VESA), 576i/p , 480i/p , PAL
Supply Voltage 3.3 Volt
OtherSupply Voltage 3.3V to 5V
Temperature Min -40 deg C
Temperature Max 85 deg C

Also Recommended


LMH1981For Lower Jitter, Higher Performance
Additional Resources
Application Notes


Connection Diagram


click for larger image

Pinout

Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator 746
Kbytes
6-Jul-07 Download
LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator (Japanese)
526 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LMH1980MMMINI SOIC10NOPB1260RoHS N/A Full productionN/A
Samples
Buy Now
1K+$1.95reel
of
1000
ZXTT
AL4A
6 weeks1000
LMH1980MMXMINI SOIC10NOPB1260RoHS N/A Full productionN/A
 
Buy Now
1K+$1.95reel
of
3500
ZXTT
AL4A
6 weeksN/A
LMH1980MMEVALEvaluation Board for LMH1980Full productionN/A
 
Buy Now
1+$70.201-
N/AN/A

General Description


The LMH1980 is an auto-detecting SD/HD/PC video sync separator ideal for use in a wide range of video applications, such as automotive LCD monitors, video capture & editing devices, surveillance & security equipment, and machine vision and inspection systems.

The LMH1980 accepts an analog video input signal with either bi-level or tri-level sync and automatically detects the video format, eliminating the need for external RSET resistor adjustment required by other sync separators (e.g.: LM1881). The outputs provide timing signals in CMOS logic, including Composite, Horizontal, and Vertical Syncs, Burst/Back Porch Timing, and Odd/Even Field outputs. The ^HD flag output (pin 5) provides a logic low signal only when a valid HD video input with tri-level sync is detected. The ^HD flag can be used to disable an external switch-controlled SD chroma filter when HD video is detected, or enable it when SD video is detected. For non-standard video with bi-level sync and without vertical serration pulses, a default vertical sync pulse will be output and no horizontal sync pulses will be output during the vertical sync interval.

The LMH1980 is available in a space-saving 10-ld. Mini-SO Package (MSOP) and operates over a temperature range of −40°C to +85°C.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMH1980MMCMOS70184060010890004309006723
LMH1980MMXCMOS70184060010890004309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1618: Application Note 1618 LMH1980 Evaluation Board Instruction Manual 674
Kbytes
19-Jul-07 Download
AN-1618 (Japanese): Application Note 1618 LMH1980 Evaluation Board Instruction Manual
412 Kbytes   Download
AN-1681: Application Note 1681 Design Migration from the LM1881 to the LMH1980 143
Kbytes
2-Aug-07 Download
AN-1681 (Japanese): Application Note 1681 Design Migration from the LM1881 to the LMH1980
119 Kbytes   Download
AN-1841: Application Note 1841 LMH1982 Evaluation Board User Guide 913
Kbytes
21-May-08 Download
AN-1841 (Chinese): Application Note 1841 LMH1982 Evaluation Board User Guide
599 Kbytes  

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1971: Application Note 1971 Triple Rate SDI IP FPGA Resource Utilization on the SDXILEVK/AES-EXP-SDI-G Reference Design 195
Kbytes
6-May-09 Download
AN-1893: Application Note 1893 Demonstrating SMPTE-Compliant SDI Output Jitter Using the LMH1982 and Virtex-5 GTP Transmitter 2197
Kbytes
3-Oct-08 Download
AN-1599: Application Note 1599 LMH1981 Evaluation Board Instruction Manual 503
Kbytes
11-Feb-09 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]