TDA8303N1 View Datasheet(PDF) - Philips Electronics
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TDA8303N1 Datasheet PDF : 21 Pages
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Philips Semiconductors
Small signal combination IC for black/white TV
Preliminary specification
TDA8303
TDA8303A
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
Vertical circuit (note 24)
VERTICAL RAMP GENERATOR
I2
I2
V2(p−p)
t
input current during scan
discharge current during retrace
sawtooth amplitude (peak-to-peak value)
interlace timing of the internal pulses
−
−
2
µA
−
0.8
−
mA
−
1.9
−
V
30
32
34
µs
VERTICAL OUTPUT
I3
available output current
V3
maximum available output voltage
V3 = 4 V
−
−
3
mA
I3 = 0.1 mA
4.4
5
−
V
VERTICAL FEEDBACK INPUT
V4
DC input voltage
2.9
3.3
3.7
V
V4(p−p)
AC input voltage (peak-to-peak value)
−
1
−
V
I4
input current
−
−
12
µA
∆tp
internal pre-correction to sawtooth
−
3
−
%
deviation amplitude
50/60 Hz
−
−
4
%
temperature dependency of the amplitude
Tamb = 20 to
−
65 °C
−
2
%
Notes to the characteristics
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 input impedance has been chosen such that a SAW filter can be employed.
4. Measured with 0 dB = 450 µV.
5. Measured at 10 mV RMS top sync input signal.
6. Projected zero point; i.e. with switched demodulator.
7. White 10% of the top sync amplitude.
8. Measured according to the test line illustrated by Fig.2. The differential gain is expressed as a percentage of the
difference in peak amplitudes between the largest and smallest value relative to the subcarrier amplitude at blanking
level. The differential phase is defined as the difference in degrees between the largest and smallest phase angle.
The differential gain and phase are measured with a DSB signal.
9. This figure is valid for the complete video signal amplitude (peak white-to-black); see Fig.3. The non−linearity is
expressed as a percentage of the maximum deviation of a luminance step from the mean step, with respect to the
mean step.
10. The test set−up and input conditions are illustrated by Fig.4. The figures are measured at an input signal of 10 mV
RMS.
11. Measured with a source impedance of 75Ω.
The signal-to-noise ratio = 20 log -V----n--V-(--R-O---M---b-S--l-)-a---c-a--k-t----B-t--o---=---w---5-h----iM-t--e--H-----z-
12. The sound circuit is measured (unless otherwise specified) with an input signal of V15 of 50 mV RMS, a carrier
frequency of 5.5 MHz at a ∆f of 27.5 kHz. The QL of the demodulator tuned circuit is 16 and the volume control is
July 1992
11
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