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參數(shù)資料
| 型號： | TDA8303A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Small signal combination IC for black/white TV |
| 中文描述： | 小信號為黑色/白色電視的組合集成電路 |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 153K |
| 代理商： | TDA8303A |
July 1992
11
Philips Semiconductors
Preliminary specification
Small signal combination IC for black/white TV
TDA8303
TDA8303A
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
μ
V.
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 75
.
V
black-to-white
n RMS
12. The sound circuit is measured (unless otherwise specified) with an input signal of V
15
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
Vertical circuit (note
24
)
V
ERTICAL RAMP GENERATOR
I
2
I
2
V
2(p
p)
t
input current during scan
discharge current during retrace
sawtooth amplitude (peak-to-peak value)
interlace timing of the internal pulses
30
0.8
1.9
32
2
34
μ
A
mA
V
μ
s
V
ERTICAL OUTPUT
I
3
V
3
V
ERTICAL FEEDBACK INPUT
available output current
maximum available output voltage
V
3
= 4 V
I
3
= 0.1 mA
4.4
5
3
mA
V
V
4
V
4(p
p)
I
4
t
p
DC input voltage
AC input voltage (peak-to-peak value)
input current
internal pre-correction to sawtooth
deviation amplitude
temperature dependency of the amplitude
2.9
3.3
1
3
3.7
12
4
2
V
V
μ
A
%
%
%
50/60 Hz
T
amb
= 20 to
65
°
C
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
The signal-to-noise ratio = 20
)
at B = 5 MHz
V
log
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