Philips TDA8303A - 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