Product category:
Communications ICs (Wired)
News Release from: Young Electronics Group | Subject: NJM2277
Edited by the Electronicstalk Editorial
Team on 17 July 2001
Video switch routes composite video
Available from New Japan Radio's exclusive representative in the UK, Young ECC, the NJM2277 video switch routes composite video from a set-top box (STB) or VCR to the TV.
Available from New Japan Radio's exclusive representative in the UK, Young ECC, the NJM2277 video switch routes composite video from a set-top box (STB) or VCR to the TV The device includes two CVBS inputs and two RGB input switches
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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It routes these inputs into three CVBS outputs and one RGB output.
The NJM2277 video switch operates on +/-5V and includes fifth-order lowpass filters to suppress noise interference in each of the video signal paths.
The filters' good phase linearity ensures an excellent group delay characteristic.
The NJM2277 supports NTSC and PAL video applications with no additional external peaking capacitor.
It also offers a high-impedance output for the RGB signal and features the typically good immunity to ESD of New Japan Radio's bipolar technology.
A high impedance output pin is useful in removing the video text breakthrough associated with mixing the signal from the VCR or STB with Teletext.
The video inputs have at least 50kohm input impedance to allow DC coupled inputs.
RGB outputs are closely matched with the gain levels well within +/-5%.
All 6dB output amplifiers and 75ohm drivers are integrated on-chip.
Further, a control pin selects whether the VCR signal or the STB signal is connected to the TV.
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