TDA3853T Просмотр технического описания (PDF) - Philips Electronics
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TDA3853T Datasheet PDF : 18 Pages
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Philips Semiconductors
TV IF amplifier and demodulator with
TV-identification
Preliminary specification
TDA3853T
CHARACTERISTICS
VP = 5 V; Tamb = 25 °C, fVC = 38.9 MHz; ViIF = 10 mV rms; DSB video modulation; sync level for B/G.
Measurements taken in Fig.3 without notch components and video signal according to Fig.4 unless otherwise specified.
SYMBOL
PARAMETER
VP
supply voltage range (pin 15)
IP
supply current
Standard set inputs (Table 1)
VIL
input voltage LOW, pins 5 and 7
Vision IF input (pins 1-20)
Vi
input signal sensitivity (RMS value)
maximum input signal (RMS value)
Gv
IF gain control range
B
IF bandwidth
Ri
input resistance
Ci
input capacitance
VI
DC voltage on pins 1 and 20
Synchronous demodulator (pins 10 and 11)
Vo ref
picture carrier amplitude, pins 10-11
(peak-to-peak value)
R10-11
RL 10-11
QL
V10, 11
integrated operating resistance
load resistance
load Q-factor of resonance circuit; note 2
DC voltage
Composite video output (pin 14)
Vo
output signal (peak-to-peak value)
V14
sync level
ultra-white level
upper video clipping level
lower video clipping level
R14
output resistance
I14
output current
B
−1 dB video bandwidth
−3 dB video bandwidth
RR
ripple rejection on pin 14
CONDITIONS
MIN.
4.75
−
TYP.
5
46
0
−
−1 dB video
−
70
+1 dB video; note 1 100 −
Fig.6
63
66
−3 dB
−
80
−
2
−
1.5
−
2.50
−
1.6
−
12
tbn −
no notch components 55
60
−
2.8
0.9
−
−
−
−
−
DC and AC
−
C14 < 20 pF
tbn
C14 < 20 pF
tbn
fripple = 70 Hz; note 3 tbn
1.0
1.5
2.63
4.3
0.3
−
−
10
14
30
MAX.
6
55
UNIT
V
mA
0.8
V
100
µV
−
mV
−
dB
−
MHz
−
kΩ
−
pF
−
V
−
V
−
kΩ
−
kΩ
−
−
V
1.1
V
−
V
−
V
−
V
−
V
10
Ω
±1
mA
−
MHz
−
MHz
−
dB
January 1992
7
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