SAA7113H
9-bit video input processor
Rev. 02 — 9 May 2005
Product data sheet
1. General description
The 9-bit video input processor is a combination of a two-channel analog preprocessing
circuit including source selection, anti-aliasing filter and ADC, an automatic clamp and
gain control, a Clock Generation Circuit (CGC), a digital multistandard decoder
(PAL BGHI, PAL M, PAL N, combination PAL N, NTSC M, NTSC-Japan, NTSC N and
SECAM), a brightness, contrast and saturation control circuit, a multistandard VBI data
slicer and a 27 MHz VBI data bypass.
The pure 3.3 V CMOS circuit SAA7113H, analog front-end and digital video decoder, is a
highly integrated circuit for desktop video applications. The decoder is based on the
principle of line-locked clock decoding and is able to decode the color of PAL, SECAM and
NTSC signals into ITU-R BT 601 compatible color component values. The SAA7113H
accepts as analog inputs CVBS or S-video (Y/C) from TV or VTR sources. The circuit is
I
2
C-bus controlled.
The integrated high performance multistandard data slicer supports several VBI data
standards:
•
Teletext 625 lines: WST (World Standard Teletext) and CCST (Chinese teletext)
•
Teletext 525 lines: US-WST, NABTS (North-American Broadcast Text System) and
MOJI (Japanese teletext)
•
•
•
•
•
Closed caption: Europe and US (line 21)
Wide Screen Signalling (WSS)
Video Programming Signal (VPS)
Time codes (VITC EBU/SMPTE)
High-speed VBI data bypass for Intercast application.
2. Features
s
Four analog inputs, internal analog source selectors, e.g. 4
×
CVBS or 2
×
Y/C or
(1
×
Y/C and 2
×
CVBS)
s
Two analog preprocessing channels in differential CMOS style for best
S/N-performance
s
Fully programmable static gain or automatic gain control for the selected CVBS or Y/C
channel
s
Switchable white peak control
s
Two built-in analog anti-aliasing filters
s
Two 9-bit video CMOS Analog-to-Digital Converters (ADCs), digitized CVBS or
Y/C-signals are available on the VPO-port via I
2
C-bus control
s
On-chip clock generator
PHILIPS [ NXP SEMICONDUCTORS ]
