TDA9550 PHILIPS [NXP Semiconductors], TDA9550 Datasheet - Page 72

• Manufacturer Part Number: TDA9550
• Description: TV signal processor-Teletext decoder with embedded m-Controller
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 79 Video ident mode
Table 80 Forced slicing level for vertical sync
Table 81 Switch-off in vertical overscan
Table 82 Forced field frequency
Table 83 Interlace
Table 84 Vertical divider mode
Table 85 Black current measuring lines in overscan (for
2000 Jun 22
OSVE
FORF
NCIN
TV signal processor-Teletext decoder with
embedded -Controller
OSO
FSL
VID
DL
0
1
0
1
0
0
1
1
0
1
0
1
0
1
0
1
vertical zoom setting
slicing level dependent on noise detector
fixed slicing level of 70%
Switch-off undefined
Switch-off in vertical overscan
interlace
de-interlace
normal operation
switched to search window
normal operation
measuring lines in overscan
not active
FORS
1 loop switched on and off
0
1
0
1
VERTICAL DIVIDER MODE
auto (60 Hz when line not in sync)
60 Hz
keep last detected field frequency
auto (50 Hz when line not in sync)
VIDEO IDENT MODE
SLICING LEVEL
FIELD FREQUENCY
STATUS
MODE
MODE
)
72
Table 86 AFC switch
Table 87 Disable flash protection
Table 88 X-ray detection
Table 89 Service blanking
Table 90 Adjustment V
Table 91 Enable vertical guard (RGB blanking)
Table 92 EHT tracking mode
HCO
AFN
XDT
SBL
AVG
EVG
DFL
0
1
0
1
0
1
0
1
0
1
0
1
0
1
TDA955X/6X/8X PS/N1 series
normal operation
AFC not active
flash protection active
flash protection disabled
protection mode, when a too high EHT is
detected the receiver is switched to stand-by
and the XPR-bit is set to 1
detection mode, the receiver is not switched
to stand-by and only the XPR-bit is set to 1
off
on
normal operation
V
byte 01 can be read)
not active
active
EHT tracking only on vertical
EHT tracking on vertical and EW
g2
adjustment (WBC and HBC bits in output
SERVICE BLANKING MODE
VERTICAL GUARD MODE
TRACKING MODE
g2
voltage
Tentative Device Specification
MODE
MODE
MODE
MODE