LMH1981MTNOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The LMH1981MTNOPB is a video sync separator IC from Texas Instruments in a 14-pin TSSOP package. It extracts horizontal and vertical sync signals from composite or Y/C video inputs, supporting standard video formats. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- LMH1981MTNOPB Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMH1981MTNOPB?
- Separates composite sync into horizontal and vertical sync pulses from standard video signals including NTSC, PAL, and SECAM formats
- Operates from a single 5 V supply with low quiescent current consumption for power-efficient designs
- Provides separate horizontal sync (HSYNC) and vertical sync (VSYNC) outputs with TTL-compatible logic levels
- Available in compact 14-pin TSSOP package enabling space-saving PCB layouts in video processing equipment
What is LMH1981MTNOPB used for?
The LMH1981MTNOPB is used in video processing systems requiring reliable sync extraction from composite video signals, such as broadcast equipment, security cameras, and display controllers. It suits applications like video overlay systems and scan converters where horizontal and vertical sync pulses must be separated from a composite source operating at standard NTSC/PAL/SECAM frame rates. The device is also applied in test and measurement instruments that decode video timing signals from 5 V-powered analog video sources.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LMH1981MTNOPB datasheet?
LMH1981MTNOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMH1981MTNOPB?
Compatible alternatives and drop-in replacements for LMH1981MTNOPB:
Frequently Asked Questions
What supply voltage does the LMH1981MTNOPB require, and does it support single-supply operation?
The LMH1981MTNOPB operates from a single 5 V supply rail, making it straightforward to integrate into standard logic systems without requiring a dual-supply design. This single-supply architecture simplifies PCB layout and reduces component count in video sync extraction circuits.
Which video standards does the LMH1981MTNOPB support for sync separation?
The LMH1981MTNOPB supports sync separation from composite video signals conforming to NTSC (60 Hz field rate), PAL (50 Hz field rate), and SECAM formats. It accurately extracts both horizontal sync pulses at approximately 15.625 kHz to 15.734 kHz and vertical sync pulses at 50 Hz or 60 Hz depending on the standard.
How does the 14-pin TSSOP package of the LMH1981MTNOPB benefit space-constrained video designs?
The 14-pin TSSOP package measures approximately 5 mm x 4.4 mm, occupying significantly less board area than equivalent DIP packages. This compact footprint is advantageous in portable video equipment, embedded display controllers, and high-density PCBs where board space is limited to under 25 mm².
When would you choose LMH1981MTNOPB over a discrete sync-separator circuit?
Choosing LMH1981MTNOPB over a discrete solution saves engineering time and reduces external component count by integrating sync slicing, noise filtering, and separate HSYNC/VSYNC outputs in a single 14-pin IC. A discrete approach typically requires 5 to 10 additional passive components, increasing BOM cost and PCB area by at least 30%.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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