Philips Semiconductors
Small signal combination IC for black/white TV
Preliminary specification
TDA8303
TDA8303A
SYMBOL
PARAMETER
S/N
signal-to-noise ratio
S/N
signal-to-noise ratio
V17
residual carrier signal
V17
residual 2nd harmonic of carrier signal
Tuner AGC
V8-9(RMS) minimum starting point for tuner take−over
(RMS value)
V8-9(RMS) maximum starting point for tuner take−over
(RMS value)
I5
maximum tuner AGC output swing
V5
output saturation voltage
IL
leakage current (pin 5)
∆VI
input signal variation complete tuner control
V1
minimum voltage tuner take−over
AFC circuit
I19
AFC sample-and-hold switch-off current
IO
output current (pin 19)
ILO
output leakage current (pin 19)
V18
AFC output voltage swing
I18
available output current
control slope
VO
output voltage (pin 18)
RO
AFC output resistance
V18
output voltage swing
control slope
V18
output voltage shift with respect to
VI = 10 mV(RMS)
CONDITIONS
10 mV input
signal
end of gain
control range
MIN.
50
50
−
−
TYP.
57
62
2
2
MAX. UNIT
−
dB
−
dB
10
mV
10
mV
V5 = 3 V
I5 = 2 mA
−
−
0.2
mV
100
150 −
mV
4
−
−
−
−
−
0.2
2
−
−
−
mA
300 mV
1
µA
4
dB
1
V
0.1
−
−
mA
V19 = 0 V
−
0.1
0.3
mA
−
−
2
µA
notes 18 and 19 10.5 −
11.5 V
0.2
−
−
mA
−
100 −
mV/kHz
AFC off
5.5
6
6.5
V
−
40
−
kΩ
notes 25 and 26 −
11
−
V
notes 25 and 26 −
80
−
mV/kHz
notes 25 and 26 −
−2
−
V
July 1992
8