
1996 Jan 17
19
Philips Semiconductors
Preliminary specication
I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator
TDA9144
Table 17 External RGB clamp mode
Table 18 Forced RGB mode
Table 19 YUV outputs as a function of EFS, FRGB and
Fast switch F
Table 20 Hue
Table 21 Line-locked clock active
Table 22 Forced wide window
Table 23 Motion Adaptive Colour Plus; note 1
Note
1. Black set-up will only be present in a norm sync
condition.
ECL
CONDITION
0
off; internal clamp pulse is used
1
on; external clamp pulse has to be supplied
to CLP pin
FRGB
CONDITION
0
YUV, when disabled via EFS
1
forced RGB
EFS
FRGB
F
SELECTED INPUTS
00
YUV
1
RGB
100
YUV
101
RGB
FUNCTION
ADDRESS
DIGITAL NUMBER
Hue
HU5 to HU0
000000 =
45°
111111 = +45
°
LCA
CONDITION
0
OPB/CLP mode
1
LLC/HA mode
FWW
CONDITION
0
auto window mode
1
forced wide window
MACP
CONDITION
0
internal 4.43 notch used
1
external MACP chrominance ltering used,
4.43 notch bypassed, black set-up 200 mV
Table 24 PALplus helper demodulator active; note 1
Note
1. Black set-up and helper set-up will only be present in
a norm sync condition.
Table 25 PALplus/EDTV-2 helper blanking (Y, U, V)
Table 26 Blanked sync on Yout
Note
1. Except for PALplus with black set-up.
Table 27 Luminance to helper delay control
Table 28 Baseband delay line bypass; note 1
Note
1. When HD = 1 the baseband delay line is forced into
bypass mode. SECAM cannot be bypassed.
Table 29 Low power standby mode
HD
CONDITION
0off
1
on, PALplus mode with helper set-up
400 mV and black set-up 200 mV
HOB
HBC
SNR
BLANKING
0
off
10
on
110
off
111
on
BSY
CONDITION
0
unblanked sync; note 1
1
blanked sync
YH2 to YH1
CONDITION
00
20 ns
11
+25 ns
BPS
CONDITION
0
no bypass
1
baseband delay line bypassed
LPS
CONDITION
0
normal operation
1
low power standby