NJM2267V-TE1

Video Amps And Modules Overview

The NJM2267V-TE1 is a dual video amplifier manufactured by Nisshinbo Micro Devices Inc. It features two channels with an internal clamp function to fix the DC level of video signals and integrated 75Ω drivers for direct connection to TV monitors. The device operates on a supply voltage ranging from 4.85V to 9V, with a typical operating current of 14.0mA and a maximum of 18.2mA. It provides a voltage gain of approximately 6dB and supports a frequency bandwidth up to 7MHz. The component utilizes bipolar technology and includes sag corrective circuits to prevent signal distortion with smaller capacitance values.

Video Amps And Modules Feature Summary

• Dual channel architecture with integrated 75Ω driver circuits
• Internal sync-tip clamp function for DC level fixing
• Sag corrective circuitry to minimize low-frequency attenuation
• Bipolar technology implementation

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This product is designated as discontinued and will be withdrawn from production in the near term. It is provided exclusively for customers currently utilizing this component, subject to a time limit. It is not available for new project designs. Engineers must verify availability status through regional sales offices before initiating any procurement actions.

Video Amps And Modules Selection Notes

Designers should account for the input impedance variations between charge and discharge periods of the clamp circuit. Source impedance connected to the input terminals should remain below 200Ω to prevent signal distortion. For applications requiring large luminance changes, increasing the power supply voltage or omitting the sag correction circuit may be necessary to maintain signal dynamic range.

Video Amps And Modules Part Context

The NJM2267 series includes variants such as NJM2267D, NJM2267M, and NJM2267V. These devices share identical functional specifications but differ in package outlines, including DIP8, DMP8, and SSOP8 configurations. The NJM2267V-TE1 specifically denotes the SSOP8 package variant within this family.

Video Amps And Modules Replacement Considerations

NJM2561F1-TE1

Video Amps And Modules FAQ

How does the internal clamp circuit operate?

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, then discharges it during other periods.

What is the purpose of the SAG terminal?

The SAG terminal connects to an external capacitor that increases low-frequency gain to correct for attenuation caused by high-pass filters formed by output coupling capacitance and load resistance.

Why might the output signal lack sync information?

If the sag correction circuit generates low-frequency components that exceed the dynamic range of the output pin, particularly with large luminance changes, the sync signal may be clipped or distorted.