NJM2257D

Description：IC VIDEO SYNC SEPARATOR 16DIP
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tube

SKU:d83b86105f34 Category: Video Processing Brand: Nisshinbo Micro Devices Inc.

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Product introduction

NJM2257D is listed in the Video Processing range at ChipApex. The manufacturer field lists Nisshinbo Micro Devices Inc.. Its product description is IC VIDEO SYNC SEPARATOR 16DIP. Review the specifications below when checking this part for your BOM.

Video Processing specifications for NJM2257D

Description：IC VIDEO SYNC SEPARATOR 16DIP
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tube
Function：Separator
Applications：Consumer Video
Standards：-
Control Interface：-
Voltage - Supply：-
Mounting Type：Through Hole
Package / Case：16-DIP (0.300", 7.62mm)
Supplier Device Package：16-DIP
Grade：-
Qualification：-

Video Processing datasheet and documents for NJM2257D

NJM2257D

Video Processing Overview

The NJM2257D is a synchronous separator with AFC, manufactured by Nisshinbo Micro Devices Inc. It executes horizontal and vertical synchronous signal separation and odd/even field signal detection from composite video signals. The device operates at +4.5 to +5.3V with a maximum supply voltage of +7V. It features an internal AFC circuit for horizontal sync signals and a built-in 1/2 fH killer function to stabilize horizontal oscillation during the vertical period. The component utilizes bipolar technology and is housed in a DIP-16 package.

Video Processing Feature Summary

Executes horizontal and vertical synchronous signal separation and odd/even field signal detection from composite video inputs
Integrates an automatic frequency control (AFC) circuit for horizontal synchronization
Includes a built-in 1/2 fH killer function to stabilize horizontal signal oscillation during the vertical period
Provides adjustable AFC output pulse delay time and vertical synchronous pulse width

Video Processing Applications

Video Tape Recorders (VTR)
Television sets
Audio/Visual components

Video Processing Procurement Notes

Verify the specific part number NJM2257D against official datasheets to confirm compatibility with existing designs. Ensure that the DIP-16 package dimensions align with the target PCB layout. Confirm operational requirements regarding the +4.5V to +5.3V operating voltage range and the -20°C to +75°C temperature specifications before finalizing procurement decisions.

Video Processing Selection Notes

Select this component when composite video signal processing requires integrated horizontal and vertical synchronization separation. The inclusion of an internal AFC circuit and 1/2 fH killer function simplifies design complexity compared to discrete solutions. Consider the adjustable pulse parameters for fine-tuning synchronization timing in VTR or TV applications requiring precise field discrimination.

Video Processing Part Context

The NJM2257 series includes the NJM2257M variant, which shares identical functional characteristics but utilizes a DMP-16 surface-mount package instead of the through-hole DIP-16 configuration found in the NJM2257D. Both variants are designed for composite video signal processing within consumer electronics.