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TMC2490AR2C
Multistandard Digital Video Encoder
Features All-digital video encoding Internal digital subcarrier synthesizer 8-bit parallel CCIR-601/CCIR-656/ANSI/SMPTE
125M input format CCIR-624/SMPTE-170M compliant output Switchable chrominance bandwidth Switchable pedestal with gain compensation Pre-programmed horizontal and vertical timing 13.5 Mpps pixel rate Master or slave (CCIR656) operation MPEG interface Internal interpolation filters simplify output
reconstruction filters 10-bit D/A converters for video reconstruction Supports NTSC and PAL standards Closed-caption waveform insertion Simultaneous S-Video (Y/C) output Controlled edge rates Single +5V power supply 44 lead PLCC package Parallel and serial control interface
Applications Set-top digital cable television receivers Set-top digital satellite television receivers Studio parallel CCIR-601 to analog conversion
DescriptionThe TMC2490A video encoder converts digital component
video (in 8-bit parallel CCIR-601/656 or ANSI/SMPTE
125M format) into a standard analog baseband television
(NTSC, NTSC-EIA, and all PAL standards) signal with a
modulated color subcarrier. Both composite (single lead) and
S-Video (separate chroma and luma) formats are active
simultaneously at all three analog outputs. Each video output
generates a standard video signal capable of driving a singly-
or doubly-terminated 75 Ohm load.
The TMC2490A is intended for all non-Macrovision
encoder applications.
The TMC2490A is fabricated in a submicron CMOS
process and is packaged in a 44-lead PLCC. Performance is
guaranteed over the full 0
C to 70
C operating temperature
range.
