Table of Contents
Advertisement
Philips Semiconductors
I.F. amplifier and demodulator for
multistandard TV receivers
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pins 13 and 21)
Storage temperature range
Operating ambient temperature range
CHARACTERISTICS (measured in fig.5)
V
= 12 V; T
= 25 C
P
amb
PARAMETER
Supply voltage range
Supply current (pins 13 and 21)
I.F. input signal for V
= 2 V
o
(between pins 6 and 7)
Input impedance (differential)
Input capacitance (differential)
Zero single output level
positive modulation
negative modulation
Top sync output level
Gain control range
Signal-to-noise ratio at V
Maximum video output amplitude for positive
modulation (peak-to-peak value)
Bandwidth of video amplifier (3 dB)
Differential gain at V
= 2V
o
Differential phase at V
o
Residual carrier signal (r.m.s. value)
Residual second harmonic of carrier signal
(r.m.s. value)
April 1985
= 10 mV (note 1)
i
= 2 V
V
P
T
stg
T
amb
SYMBOL
MIN.
V
10,8
P
I
P
V
= V
i
6-7
|Z
|
6-7
C
6-7
V
1,6
22-3
V
3,7
22-3
V
1,7
22-3
G
50
v
S/N
50
V
4,5
22-3(p-p)
B
dG
d
V
24-3(rms)
V
24-3(rms)
4
Product specification
TDA2549
13,8
25 to 125
25 to 70
TYP.
MAX.
12
13,2
82
50
150
2
2
2
2,3
4
4,3
2
2,3
74
57
5,5
4
10
2
10
10
20
20
60
V
C
C
UNIT
V
mA
V
k
pF
V
V
V
dB
dB
V
MHz
%
%
mV
mV
Advertisement
Table of Contents
