Philips Semiconductors
SAA7113H
9-bit video input processor
Supported VBI standards
…continued
Data rate
(Mbit/s)
5.7272
5.7272
5
Framing code
programmable
programmable
FC window Hamming
check
NABTS
optional
Table 6:
Standard type
US NABTS
MOJI (Japanese)
Japanese format switch (L20/22)
programmable (A7h) Japtext
8.9 VBI-raw data bypass
For a 27 MHz VBI-raw data bypass the digitized CVBS signal is upsampled after
analog-to-digital conversion. Suppressing of the back folded CVBS frequency
components after upsampling is achieved by an interpolation filter (see
6
V
0
(dB)
−6
−12
−18
−24
−30
−36
−42
−48
−54
0
2
4
6
8
10
12
mgg067
14
f (MHz)
Fig 22. Interpolation filter for the upsampled CVBS signal
8.10 Digital output port VPO7 to VPO0
The 8-bit VPO-bus can carry 16 data types in three different formats, selectable by the
control registers LCR2 to LCR24 (see also
subaddresses 41h to 57h).
Table 7:
Data type
number
0
1
2
3
4
5
6
7
9397 750 14232
VPO-bus data formats and types
Data format
Data type
Name
Number of
valid bytes
sent per line
88
8
56
32
72
8
1440
programmable
sliced
sliced
sliced
sliced
sliced
sliced
teletext EuroWST, CCST
European closed caption
VPS
wide screen signalling bits
US teletext (WST)
US closed caption (line 21)
WST625
CC625
VPS
WSS
WST525
CC525
test line
Intercast
YUV 4 : 2 : 2 video component signal, VBI
region
raw
oversampled CVBS data
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 9 May 2005
24 of 75
PHILIPS [ NXP SEMICONDUCTORS ]
