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ML6427

Micro Linear
Part Number ML6427
Manufacturer Micro Linear
Description 75 Quad Video Cable Drivers and Filters with Switchable Inputs
Published May 7, 2005
Detailed Description August 1999 PRELIMINARY ML6427 75W Quad Video Cable Drivers and Filters with Switchable Inputs GENERAL DESCRIPTION The ...
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ML6427
ML6427


Overview
August 1999 PRELIMINARY ML6427 75W Quad Video Cable Drivers and Filters with Switchable Inputs GENERAL DESCRIPTION The ML6427 is a quad 4th-order Butterworth lowpass reconstruction filter plus quad video amplifier optimized for minimum overshoot and flat group delay.
Each filter channel has a two-input multiplexer that switches between two groups of quad video signals.
Applications driving SCART and EVC cables are supported for composite, component, and RGB video.
1VP-P input signals from DACs are AC coupled into the ML6427 where they are DC restored.
Outputs are AC coupled and drive 2VP-P into a 150W load.
The ML6427 can provide DC coupled outputs for certain applications.
A fifth unfiltered channel is provided to support an additional analog composite video input.
A swapping multiplexer between the two composite channels allows the distribution amplifiers to output from either input.
Several ML6427s can be arranged in a master-slave configuration where an external sync can be used for CV and RGB outputs.
FEATURES s Cable drivers for Peritel (SCART), Enhanced Video Connector (EVC), and standard video connectors, 75W cable drivers for CV, S-video, and RGB 7.
1MHz CV, RGB, and S-video, NTSC or PAL filters with mux inputs and output channel mux Quad reconstruction filter or dual anti-aliasing filter 43dB stopband attenuation at 27MHz 1dB flatness up to 4.
8MHz 12ns group delay flatness up to 10MHz 0.
4% differential gain, 0.
4º differential phase on all channels 0.
4% total harmonic distortion on all channels Master-slave configuration allows up to 8 multiplexed, filtered output signals s s s s s s s s BLOCK DIAGRAM SYNCIN 2 SYNC TIMER 17 VCCORGB UNFILTERED CHANNEL 22 VCCOCV 6 VCC 14 SWAP CVU 13 SWAP CVF SYNCIN 23 SYNCOUT 24 3 4 CVINFA/Y2* CVINFB/Y3* RINA/Y4 RINB/Y5 MUX MUX TRANSCONDUCTANCE ERROR AMP + – 0.
5V ×2 SWAP MUX SYNC TIMER REQUIRED SYNC STRIP TRANSCONDUCTANCE ERROR AMP + – CVOUT1/YOUTA 21 4th-ORDER FILTER ×2 CVOUT/YOUTB 20 7 8 0.
5V 4th-ORDER FILT...


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