tda9808t NXP Semiconductors, tda9808t Datasheet - Page 13

• Manufacturer Part Number: tda9808t
• Description: Single Standard Vif-pll With Qss-if And Fm-pll Demodulator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1999 Jun 04
VIF-AGC detector (pin 17)
I
t
Tuner AGC (pin 12)
V
V
V
I
AFC circuit (pin 13); see Fig.10 and note 13
S
V
I
I
17
resp
12(sink)
o(source)(13)
o(sink)(13)
V
G
f
I
i(rms)
o(12)
sat(12)
o(13)
Single standard VIF-PLL with QSS-IF and
FM-PLL demodulator
IF
13(p-p)
SYMBOL
TOP(12)
IF
/ T
/ T
charging current
discharging current
AGC response to an
increasing VIF step
AGC response to a
decreasing VIF step
IF input signal voltage for
minimum starting point of
tuner takeover (RMS value)
IF input signal voltage for
maximum starting point of
tuner takeover (RMS value)
tuner takeover point accuracy
permissible output voltage
saturation voltage
variation of takeover point by
temperature
sink current
IF slip by automatic gain
control
control steepness I
frequency variation by
temperature
output voltage upper limit
output voltage lower limit
output source current
output sink current
residual video modulation
current (peak-to-peak value)
PARAMETER
13
/ f
note 8
note 12
input at pins 1 and 2;
R
I
input at pins 1 and 2;
R
I
R
I
from external source;
note 3
I
I
see Fig.4
tuner gain current from
20 to 80%
note 14
I
see Fig.10
see Fig.10
12
12
12
12
12
AFC
TOP
TOP
TOP
no tuner gain
reduction;
V
maximum tuner gain
reduction
f
f
f
pc
pc
pc
= 0.4 mA
= 0.4 mA
= 0.4 mA
= 1.6 mA
= 0.4 mA
12
= 0; note 5
CONDITIONS
= 38.9 MHz
= 45.75 MHz
= 58.75 MHz
= 22 k ;
= 0 ;
= 13 k ;
= 13.2 V
13
55
1.0
50
6
1.5
0.35
0.35
0.35
V
150
150
P
MIN.
0.7 V
75
1.4
0.05
2.2
2
100
0.03
2
6
0.55
0.55
0.55
0.3
200
200
20
P
TYP.
0.3
95
1.8
0.1
3.5
5
14
13.2
0.2
0.07
5
2.6
8
0.75
0.75
0.75
0.7
250
250
30
20
Product specification
MAX.
10
TDA9808
6
ms/dB
ms/dB
mV
mV
mV
V
V
dB/K
mA
dB
K
V
V
UNIT
A
A
A
A/kHz
A/kHz
A/kHz
A
A
A
1