TDA88454 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA88454 Datasheet PDF : 68 Pages
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Philips Semiconductors
I2C-bus controlled PAL/NTSC/SECAM TV
processors
Tentative Device Specification
TDA884X/5X-N2 series
NUMBER
PARAMETER
CONDITIONS
MIN.
Control part
SATURATION CONTROL; NOTE 25
C.1.1
saturation control range
63 steps; see Fig.11
52
CONTRAST CONTROL; NOTE 25
C.2.1
contrast control range
63 steps
−
C.2.2
tracking between the three
see Fig.12
−
channels over a control range of
10 dB
BRIGHTNESS CONTROL
C.3.1
brightness control range
63 steps; see Fig.13
−
RGB AMPLIFIERS (PINS 19, 20 AND 21)
C.4.1
C.4.2
C.4.3
C.4.4
C.4.5
C.4.6
C.4.61
C.4.7
C.4.8
C.4.9
C.4.10
C.4.11
C.4.12
C.4.13
C.4.14
output signal amplitude
(peak-to-peak value)
at nominal luminance input tbf
signal, nominal contrast and
white-point adjustment;
maximum signal amplitude
note 47
−
(black-to-white)
input signal amplitude (Y-input, note 47
−
pin 27) at which the soft clipping
is activated
output signal amplitude for the
‘red’ channel (peak-to-peak
value)
at nominal settings for
tbf
contrast and saturation
control and no luminance
signal to the input (R−Y, PAL)
nominal black level voltage
−
black level voltage
when black level stabilisation −
is switched-off (via AKB bit)
black level voltage control range VSD bit active; note 48
1.8
width of video blanking with HBL note 49
14.4
bit active
control range of the
−
black-current stabilisation
blanking level
level during leakage
measurement
difference with black level, −
note 47
−
level during “low” measuring
−
pulse
level during “high” measuring
−
pulse
adjustment range of the ratio note 47
−
between the amplitudes of the
RGB drive voltage and the
measuring pulses
variation of black level with
note 5
−
temperature
TYP.
−
18
−
±0.7
2.0
tbf
tbf
2.1
2.4
2.5
2.5
14.7
±1
-0.5
-0.1
0.25
0.38
±3
1.0
MAX. UNIT
−
dB
−
dB
0.5
dB
−
V
tbf
V
−
V
−
V
tbf
V
−
V
−
V
3.2
V
15.0
µs
−
V
−
V
−
V
−
V
−
V
−
dB
−
mV/K
December 16, 1997
41
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