Characteristics – Philips TDA8303A User Manual
Page 7
July 1992
7
Philips Semiconductors
Preliminary specification
Small signal combination IC for black/white TV
TDA8303
TDA8303A
CHARACTERISTICS
V
P
= 12 V;T
amb
= 25
°
C; carrier 38.9 MHz negative modulation, unless otherwise specified
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply (pin 7)
V
P
supply voltage range
9.5
12
13.2
V
I
P
supply current
no input
90
125
160
mA
I
11
start current (pin 11)
note 1
−
6.5
9
mA
V
11
start voltage horizontal oscillator
9.5
−
−
V
V
11
start protection level
I
11
= 12 mA
−
−
16.5
V
IF Amplifier (pins 8 and 9)
V
8-9(RMS)
input sensitivity (RMS value)
at 38.9 MHz;
note 2
25
40
65
µ
V
V
8-9(RMS)
input sensitivity (RMS value)
at 45.75 MHz;
notes 2 and 25
25
40
65
µ
V
R
8-9
differential input resistance
note 3
−
1300
−
Ω
C
8-9
differential input capacitance
note 3
−
5
−
pF
G
8-9
gain control range
−
74
−
dB
∆
V
17
output signal expansion for 46 dB input signal
variation
note 4
−
1
−
dB
V
8-9
maximum input signal
100
170
−
mV
Video Amplifier (note 5)
V
17
zero signal output level
note 6
−
5.4
−
V
V
17
peak sync level
2.3
2.5
2.7
V
V
17
video output signal amplitude
note 7
2.3
2.65
3.0
V
V
17
white spot threshold level
−
5.7
−
V
V
17
white spot insertion level
−
3.8
−
V
Z
17
video output impedance
−
25
−
Ω
I
17
internal bias current of npn emitter follower
output transistor
1.4
1.8
−
mA
I
source
maximum source current (pin 17)
10
−
−
mA
B
bandwidth of demodulated output signal
5
7
−
MHz
G
17
differential gain
note 8
−
4
8
%
ϕ
differential phase
note 8
−
2
5
deg.
NL
video non linearity
note 9
−
2
5
%
intermodulation
note 10
1.1 MHz; blue
50
60
−
dB
1.1 MHz; yellow
50
60
−
dB
3.3 MHz; blue
55
65
−
dB
3.3 MHz; yellow
55
65
−
dB