DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/TW9900 TW9900 FN7767
Rev 5.00
April 7, 2016 Low Power NTSC/PAL/SECAM Video Decoder with VBI Slicer
The TW9900 is a low power NTSC/PAL/SECAM video decoder
chip that is designed for portable applications. It consumes
less than 100mW in typical composite input applications. The
available power-down mode further reduces the power
consumption. It uses the 1.8V for both analog and digital
supply voltage and 3.3V for I/O power. A single 27MHz crystal
is all that is needed to decode all analog video standards.
The video decoder decodes the baseband analog CVBS or
S-video signals into digital 8-bit 4:2:2 YCbCr for output. It
consists of analog front-end with input source selection,
variable gain amplifier and analog-to-digital converters, Y/C
separation circuit, multi-standard color decoder (PAL BGHI,
PAL M, PAL N, combination PAL N, NTSC M, NTSC 4.43 and
SECAM) and synchronization circuitry. The Y/C separation is
done with high quality adaptive 4H comb filter for reduced
cross color and cross luminance. The advanced
synchronization processing circuitry can produce stable
pictures for a non-standard signal as well as a weak signal. The
output of the decoder is line-locked and formatted to the ITU-R …
