
1996 Jan 26
26
Philips Semiconductors
Objective specication
I2C-bus controlled PAL/NTSC TV processors
TDA8376; TDA8376A
REFERENCE SIGNAL OUTPUT FOR TDA8395 (PIN 36); note 22
fref
reference frequency
4.43
MHz
V36(p-p)
output voltage amplitude
(peak-to-peak value)
0.2
0.25
0.3
V
Vo
output voltage level
PAL/NTSC identied
1.5
V
no PAL/NTSC identied;
SECAM (by TDA8395)
identied
5.0
V
I36
required current to stop PAL/NTSC
identication circuit during SECAM
150
A
Control part
SATURATION CONTROL; note 6
SATCR
saturation control range
63 steps; see Fig.7
52
dB
CONTRAST CONTROL; note 6
CONCR
contrast control range
63 steps
20
dB
tracking between the three channels
over a control range of 10 dB
see Fig.8
0.5
dB
BRIGHTNESS CONTROL
BRICR
brightness control range
63 steps; see Fig.9
±0.7
V
RGB OUTPUT SIGNALS (PINS 19, 20 AND 21)
V19,20,21(p-p)
output voltage amplitude
(peak-to-peak value)
at nominal luminance input
signal, nominal contrast
and white-point
adjustment; note 6
tbf
2.0
tbf
V
at maximum white point
setting
3.0
V
VBWmax(p-p)
maximum voltage amplitude
(black-to-white)
note 23
2.6
V
at maximum white point
setting
3.6
V
VRED(p-p)
output voltage amplitude for the ‘red’
channel (peak-to-peak value)
at nominal settings for
contrast and saturation
control and no luminance
signal to the input (R
Y,
PAL)
tbf
2.1
tbf
V
Vblank
blanking level at the RGB outputs
0.7
0.8
0.9
V
Ibias
internal bias current of NPN emitter
follower output transistor
1.5
mA
Io
available output current
5
mA
Zo
output impedance
150
CRbl
control range of the black-current
stabilization
nominal brightness and
white-point adjustment (with
respect to the measuring
pulse); Vblk = 2.5 V
±1V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT