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ML6429 Datasheet(PDF) 1 Page - Micro Linear Corporation |
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ML6429 Datasheet(HTML) 1 Page - Micro Linear Corporation |
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1 / 15 page  August 1999 PRELIMINARY ML6429 75 W Quad Video Cable Drivers and Filters with Switchable Inputs 1 GENERAL DESCRIPTION The ML6429 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 ML6429, where they are DC restored. Outputs are AC coupled, and drive 2VP-P into a 150W load. The ML6429 can be used with 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 ML6429s can be arranged in a master-slave configuration where an external sync can be used for CV and RGB outputs. BLOCK DIAGRAM CVINF/Y1* SYNCIN 23 SYNCOUT 24 CVINUA/Y2* 3 CVINUB/Y3* GINA/Y6 9 GINB/Y7 10 A/B MUX BINA/C1 11 BINB/C2 12 RINA/Y4 7 RINB/Y5 8 CVOUT1/YOUTA 21 CVOUT2/YOUTB 20 ROUT/YOUTC 18 GOUT/YOUTD 16 BOUT/COUT 15 TRANSCONDUCTANCE ERROR AMP 4th-ORDER FILTER 4th-ORDER FILTER 4th-ORDER FILTER 4th-ORDER FILTER SYNC TIMER REQUIRED SYNC STRIP SWAP MUX MUX MUX MUX MUX ×2 ×2 ×2 ×2 ×2 TRANSCONDUCTANCE ERROR AMP TRANSCONDUCTANCE ERROR AMP TRANSCONDUCTANCE ERROR AMP TRANSCONDUCTANCE ERROR AMP 1 GNDO 19 VCCORGB 17 VCCOCV 22 VCC 6 SWAP CVF 14 SWAP CVU 13 GND 5 4 2 SYNC TIMER FILTERED CHANNEL 0.5V + – 0.5V + – 0.5V + – 0.5V + – 0.75V + – *CAN ALSO INPUT SYNC ON GREEN SIGNALS FEATURES s Cable drivers for Peritel (SCART), Enhanced Video Connector (EVC), and standard video connectors, 75 W cable drivers for CV, S-video, and RGB s 7.1MHz cutoffs CV, RGB, and S-video, NTSC or PAL filters with mux inputs and output channel mux s 7.1MHz to 8.4MHz cutoffs achievable with peaking capacitor s Quad 4th-order reconstruction or dual anti-aliasing filter s 41dB stopband attenuation at 27MHz, 0.5dB flatness up to 4.5MHz s 12ns group delay flatness up to 10MHz s 0.4% differential gain, 0.4º differential phase on all channels, 0.4% total harmonic distortion on all channels s 2kV ESD guaranteed s Master-slave configuration allows up to 8 multiplexed, filtered output signals |
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Similar Description - ML6429 |
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