TDA8303 Datasheet, PDF (3/21 Pages) NXP Semiconductors – Small signal combination IC for black/white TV

Philips Semiconductors
Small signal combination IC for black/white TV
Preliminary specification
TDA8303
TDA8303A
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
Supply
V_P
I_P
I_start
Video
V_8-9(RMS)
G_8-9
S/N
V_18(p-p)
Sound
V_12(RMS)
AMS
THD
Sync
V₂₅
I₂₇
V₂₂
V₂₂
V_22(p-p)
positive supply voltage (pin 7)
supply current (pin 7)
start current (pin 11)
IF sensitivity (RMS value)
IF gain control range
signal-to-noise ratio
AFC output voltage swing
(peak-to-peak value)
AF output signal (RMS value)
AM suppression
total harmonic distortion
required sync pulse amplitude
required input current during flyback pulse
coincidence detector output voltage
in synchronized condition
in no signal condition
vertical feedback for DC voltage
vertical feedback for AC voltage
(peak-to-peak value)
note 1
9.5 12
13.2 V
90
125 160 mA
−
6.5 9
mA
at 38.9 MHz; 20
40
note 2
−
74
input signal = −
57
10 mV
10.5 −
65
µV
−
dB
−
dB
11.5 V
note 3
400 600 800 mV
at V_I = 50 mV −
58
−
dB
−
0.5 −
%
note 4
200 −
−
mV
0.1 −
2
mA
−
9.7 −
V
−
1.5 −
V
2.9 3.3 3.7 V
−
1.2 −
V
Notes to the quick reference data
1. Pin 11 has a double function. When during switch-on a current of 9 mA is supplied to this pin, it is used to start the
horizontal oscillator. The main supply can then be obtained from the horizontal deflection stage. When no current is
supplied to this pin it can be used as a volume control.
2. On set AGC.
3. The output signal is measured at ∆f = 7.5 kHz and maximum volume control.
4. The minimum value is obtained by connecting a 1.8 kΩ resistor and a 470 nF capacitor in series between the video
output and pin 25. The slicing level can be varied by changing the value of this resistor (higher resistance value
results in a larger value of the minimum sync pulse amplitude). The slicing level is independent of the video
information.
July 1992
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