TDA8841

Manufacturer Part NumberTDA8841
DescriptionI2C-bus controlled PAL/NTSC TV processor
ManufacturerPhilips Semiconductors
TDA8841 datasheet
 


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Philips Semiconductors
2
I
C-bus controlled PAL/NTSC/SECAM TV
processors
I
NPUT CONTROL BITS
Table 7 Source select
INA
INB
INC
SELECTED SIGNALS
0
0
0
Internal CVBS+ audio
0
0
1
External CVBS+ audio Ext. CVBS
0
1
0
Y/C + ext. audio
0
1
1
CVBS3 + ext. audio
1
0
0
Y/C + int audio, note 1
1
1
0
Y/C + ext audio, note 1 Ext. CVBS
Note
1. These modes are intended for comb filter applications.
Table 8 Switch-on behaviour
BCO
STATUS
0
switch-on of picture without delay
1
switch-on of picture via internal delay
Table 9 Phase 1 (
) time constant
1
FOA
FOB
0
0
normal
0
1
slow
1
0
slow/fast
1
1
fast
Table 10 Crystal indication
XA
XB
0
0
two 3.6 MHz
0
1
one 3.6 MHz (pin 34)
1
0
one 4.4 MHz (pin 35)
1
1
3.6 MHz (pin 34) and 4.4 MHz
(pin 35)
Table 11 Forced field frequency
FORF
FORS
FIELD FREQUENCY
0
0
auto (60 Hz when line not in sync)
0
1
60 Hz
1
0
keep last detected field frequency
1
1
auto (50 Hz when line not in sync)
December 16, 1997
Table 12 Interlace
DL
0
CVBS1
OUTPUT
1
Int. CVBS
Table 13 Stand-by
STB
Y/C(Y+C)
CVBS3
0
Int CVBS
1
Table 14 Synchronization mode
POC
0
1
Table 15 Colour decoder mode
CM2
0
0
0
MODE
0
1
1
1
1
Table 16 Auto. Volume Levelling (TDA 8840/1/2/6/6A)
CRYSTAL
AVL
0
1
Table 17 RGB blanking mode (TDA 8843/44/47/54/57)
HBL
0
1
Table 18 Black current stabilisation
AKB
0
1
20
Tentative Device Specification
TDA884X/5X-N2 series
STATUS
interlace
de-interlace
MODE
stand-by
normal
MODE
active
not active
CM1
CM0
DECODER MODE
0
0
not forced, own intelligence
0
1
forced X-tal pin 34 PAL/NTSC
1
0
forced X-tal pin 34 PAL
1
1
forced X-tal pin 34 NTSC
0
0
forced X-tal pin 35 PAL/NTSC
0
1
forced X-tal pin 35 PAL
1
0
forced X-tal pin 35 NTSC
1
1
Forced SECAM (X-tal pin 35)
MODE
not active
active
MODE
normal blanking (horizontal flyback)
wide blanking
MODE
active
not active