參數(shù)資料
型號: TDA9803T
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: VIDEO DISCRIMINATOR, PDSO20
封裝: 7.50 MM, PLASTIC, MS-013AC, SOT-163-1, SOP-20
文件頁數(shù): 21/21頁
文件大?。?/td> 165K
代理商: TDA9803T
November 1992
9
Philips Semiconductors
Preliminary specication
Multistandard VIF-PLL demodulator
TDA9803
Measurements from IF input to CVBS output (pin 7) 330
between pins 13 and 14, sound carrier off
Vo CVBS
CVBS output signal on pin 7
(peak
topeak value)
1.7
2.0
2.3
V
o
deviation of CVBS output signal at B/G 50 dB gain control
0.5
dB
30 dB gain control
0.1
dB
black level tilt
B/G standard;
see note 12
1%
vertical tilt for worst case in L standard
vision carrier modulated
by test line (VITS) only;
see note 12
1.5
%
G
differential gain
25%
differential phase
1
3
deg
B
3 dB video bandwidth
CL < 20 pF; RL > 1 k
68
MHz
S/N(W)
signal-to-noise ratio; weighted
see Fig.5 and note 13
56
59
dB
α1.1
intermodulation at ‘blue’
see Fig.6 and note 14;
f = 1.1 MHz
56
62
dB
intermodulation at ‘yellow’
58
64
dB
α
3.3
intermodulation at ‘blue’
f = 3.3 MHz
56
62
dB
intermodulation at ‘yellow’
57
63
dB
αC
residual vision carrier (RMS value)
fundamental wave
110
mV
harmonics
110
mV
α
H
suppression of video signal harmonics
see note 10
35
40
dB
RR
ripple rejection on pin 7
see Fig.9
25
28
dB
AGC detector (pin 19)
tresp
response to an increasing amplitude
step of 50 dB in input signal
B/G and L
110
ms
response to a decreasing amplitude
step of 50 dB in input signal
B/G
50
100
ms
L
100
150
ms
I19
charging current
B/G and L; see note 12
0.85
1.1
1.35
mA
additional charging current
L in case of missing
VITS pulses and no
white video content
2.2
2.7
3.2
A
discharging current
B/G
17
22
27
A
normal mode L
0.24
0.33
0.42
A
fast mode L
31
44
57
A
V19
AGC voltage
see Fig.4
maximum gain
0
tbn
V
minimum gain
tbn
VP 0.7 V
V13
threshold voltage level
see Fig.7
for additional charging current
L
1.9
1.95
2.0
V
for fast L mode
L
1.6
1.65
1.7
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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