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The TW9920 is a multistandard video decoder and encoder chip that is designed for multimedia applications. This low power, integrated solution has a 4H comb filter based NTSC/PAL/SECAM video decoder that converts analog CVBS or S-Video signals into digital YCbCr output. The integrated analog video encoder converts digital YCbCr inputs into analog CVBS or S-Video output.


  • NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM support with automatic format detection
  • Software selectable analog inputs allow any of the following combinations, e.g., 4 CVBS or (3 CVBS and 1 Y/C)
  • Two 9-bit ADCs and analog clamping circuit
  • Fully programmable static gain or automatic gain control for the Y channel
  • Programmable white peak control for the Y or CVBS channel
  • 4-H adaptive comb filter Y/C separation
  • PAL delay line for color phase error correction
  • Image enhancement with 2D peaking and CTI
  • Digital subcarrier PLL for accurate color decoding
  • Digital horizontal PLL for synchronization processing and pixel sampling
  • See datasheet for full list of features


  • Digital Camcorder
  • Portable Media Player (PMP)
  • Mobile Phone and PDA

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Obsolete VFBGA Tray 260

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
TW9920 Restricted Datasheet Datasheet PDF 2.04 MB
TW9920 Data Short Short Form Datasheet PDF 158 KB