NJM2267D

Video Amps And Modules Overview

The NJM2267D is a dual video amplifier with integrated 75Ω drivers, designed for S-VHS and HI-BAND VCR applications. It features an internal clamp function to fix the DC level of video signals and sag corrective circuits to prevent signal distortion with smaller capacitance. The device operates on a supply voltage ranging from 4.85V to 9V, providing a bandwidth of 7MHz. Key electrical parameters include a typical operating current of 14mA (maximum 18.2mA), a voltage gain of 6.2dB, and a differential gain/phase of up to 3%. It utilizes bipolar technology and is housed in an 8-DIP package.

Video Amps And Modules Feature Summary

• Dual channel architecture with internal sync-tip clamp circuitry for DC level fixing
• Integrated 75Ω driver circuits enabling direct connection to TV monitors
• Sag corrective function utilizing external capacitors to minimize low-frequency attenuation
• Bipolar technology implementation supporting wide operating voltage ranges

Video Amps And Modules Applications

• S-VHS VCRs
• HI-BAND VCRs
• Video Cameras
• TV Monitors
• Video Disc Players

Video Amps And Modules Procurement Notes

This component is officially designated as discontinued by Nisshinbo Micro Devices. Production has ceased, and availability is restricted to existing customers only within a specified time limit. It cannot be utilized for new project designs. Engineers must verify specific discontinuation notices and contact regional sales offices for final confirmation before attempting any procurement or integration efforts.

Video Amps And Modules Selection Notes

Designers should prioritize this part only for maintenance or replacement of legacy equipment where form-factor compatibility is critical. The 8-DIP through-hole package requires specific PCB footprint verification. Due to the discontinuation status, alternative components with similar pinouts and electrical characteristics must be evaluated for long-term sustainability and supply chain security.

Video Amps And Modules Part Context

The NJM2267D belongs to the NJM2267 series manufactured by Nisshinbo Micro Devices Inc. This series includes variants such as the NJM2267M (DMP8 package) and NJM2267V (SSOP8 package). All variants share the same core dual video amplifier functionality but differ in physical packaging and mounting style to accommodate different assembly requirements.

Video Amps And Modules Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The datasheet explicitly states that this product will be discontinued and advises selecting other new or existing products for new projects.

Video Amps And Modules FAQ

How does the internal clamp circuit function?

The sync-tip clamp circuit charges an external input capacitor during the sync tip of the video signal to fix the minimum potential at a constant level, discharging it during non-sync periods.

What is the purpose of the Sag correction terminal?

The Sag correction terminal allows connection of an external capacitor to the negative feedback loop, increasing low-frequency gain to correct for attenuation caused by output coupling capacitors and load resistance.

What is the recommended source impedance for the input?

The source impedance connected to the input terminal should be lower than 200Ω to prevent signal distortion; a buffer may be required if higher impedance is present.