Philips Semiconductors
Product specification
Multistandard vision and sound-IF PLL with
DVB-IF processing
TDA9819
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VIF-AGC detector (pin 28)
I28
charging current
M, B/G and L standard;
note 11
0.75
1
1.25
3.1
mA
additional charging current
discharging current
L standard in event of
missing VITS pulses and no
white video content
1.9
2.5
µA
M and B/G standard
normal mode L
fast mode L
15
225
30
−
20
300
40
−
25
µA
375
50
nA
µA
tresp
AGC response to an increasing M, B/G and L standard;
0.1
ms/dB
VIF step
note 15
AGC response to a decreasing
VIF step
M and B/G standard
fast mode L
−
2.2
1.1
150
−6
3.5
1.8
240
−10
ms/dB
ms/dB
ms/dB
dB
−
normal mode L; note 15
−
∆IF
VIF amplitude step for activating L standard
fast AGC mode
−2
V3(th)
threshold voltage level
see Fig.8
additional charging current
L standard
−
−
1.95
1.65
−
−
V
V
L standard; fast mode L
Tuner AGC (pin 19)
Vi(rms)
IF input signal voltage for
minimum starting point of tuner
takeover (RMS value)
input at pins 1, 2, 4 and 5;
−
2
5
mV
mV
RTOP = 22 kΩ; I19 = 0.4 mA
IF input signal voltage for
input at pins 1, 2, 4 and 5;
50
100
−
maximum starting point of tuner RTOP = 0 Ω; I19 = 0.4 mA
takeover (RMS value)
Vo,19
permissible output voltage
saturation voltage
from external source; note 2
I19 = 1.5 mA
−
−
−
−
13.2
0.2
V
Vsat,19
−
V
variation of takeover point by
temperature
I19 = 0.4 mA
0.03
0.07
dB/K
∆VTOP,19
-----------------------
∆T
I19(sink)
sink current
see Fig.3
no tuner gain reduction;
V19 = 13.2 V
−
−
2
6
5
µA
mA
dB
maximum tuner gain
reduction
1.5
−
2.6
8
∆GIF
IF slip by automatic gain control tuner gain current from
20 to 80%
1998 Jul 14
12
NXP [ NXP ]
