Philips TDA8303A User Manual
Page 9
July 1992
9
Philips Semiconductors
Preliminary specification
Small signal combination IC for black/white TV
TDA8303
TDA8303A
Sound circuit (note 12)
V
15
input limiting voltage
V
O(max)
=
−
3 dB
−
400
800
µ
V
R
15
input resistance
−
2.6
−
k
Ω
C
15
input capacitance
−
6
−
pF
AMS
AM suppression
note 13
53
58
−
dB
V
12(RMS)
AF output signal (RMS value)
note 14
400
600
800
mV
V
12(RMS)
AF output signal when pin 11 is used as a
starting pin or connected to V
P
(RMS value)
∆
f = 50 kHz
500
900
1500
mV
Z
12
AF output impedance
−
25
100
Ω
THD
total harmonic distortion
note 15
−
0.5
2
%
RR
ripple rejection
volume control
−
20 dB;
f
k
= 100 Hz
−
35
−
dB
V
12
output voltage when muted
−
2.5
−
V
V
12
output level shift due to muting
volume control
−
20 dB
−
−
0.5
dB
S/N
signal-to-noise ratio
note 16
−
47
−
dB
V
11
voltage with pin 11 disconnected
−
6
−
V
I
11
current with pin 11 short-circuited to ground
−
1
−
mA
V
12
temperature dependence of the output signal
amplitude
T
amb
= 20 to 65
°
C;
−
30 dB volume
control and
voltage of pin 11
fixed;
note 17
−
2.5
−
dB
Volume control (note 17; see Fig.8)
R
11
external control resistor
note 17
−
4.7
−
k
Ω
OSS
suppression of output signal during mute
condition
60
66
−
dB
Horizontal synchronization circuit (see Fig.9)
S
YNC SEPARATOR
V
25
required sync pulse amplitude
note 20
200
750
−
mV
I
25
input current (pin 25)
V
25
>
5 V
−
8
−
µ
A
V
25
= 0 V
−
10
−
mA
F
IRST CONTROL LOOP
±∆
f
PLL holding range
−
1500
2000
Hz
±∆
f
PLL catching range
600
1500
−
Hz
control sensitivity to oscillator
note 21
see Fig.10
V
8-9
IF input signal at which the time constant is
switched (RMS value)
strong-to-weak
−
2.2
−
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT