TDA9802T 查看數據表（PDF） - Philips Electronics
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TDA9802T Datasheet PDF : 23 Pages
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Philips Semiconductors
Multistandard VIF-PLL demodulator and
FM-PLL detector
Preliminary specification
TDA9802
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Measurements from IF input to CVBS output (pin 7) 330 Ω between pins 13 and 14, sound carrier off
Vo CVBS
CVBS output signal on pin 7 (peak-to-peak
value)
1.7 2.0 2.3
∆Vo
deviation of CVBS output signal at B/G
50 dB gain control
−
− 0.5
30 dB gain control
−
− 0.1
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
∆ϕ
differential phase
−
13
B
S/N(W)
−3 dB video bandwidth
signal-to-noise ratio; weighted
CL < 20 pF; RL > 1 kΩ 6
8−
see Fig.5 and note 13 56 59 −
α1.1
intermodulation at ‘blue’
intermodulation at ‘yellow’
see Fig.6 and note 14; 56
f = 1.1 MHz
58
62 −
64 −
α3.3
intermodulation at ‘blue’
intermodulation at ‘yellow’
see Fig.6 and note 14; 56
f = 3.3 MHz
57
62 −
63 −
αC
residual vision carrier (RMS value)
fundamental wave
harmonics
−
1 10
−
1 10
αH
suppression of video signal harmonics
see note 10
RR
ripple rejection on pin 7
see Fig.9
35 40 −
25 28 −
V
dB
dB
%
%
%
deg
MHz
dB
dB
dB
dB
dB
mV
mV
dB
dB
AGC detector (pin 19)
tresp
response to an increasing amplitude step of B/G and L
50 dB in input signal
−
1 10
ms
response to a decreasing amplitude step of B/G
50 dB in input signal
L
−
50 100
ms
−
100 150
ms
I19
charging current
additional charging current
B/G and L; see note 12 0.85 1.1 1.35 mA
L in case of missing
2.0 2.7 3.5
µA
VITS pulses and no
white video content
discharging current
B/G
17 22 27
µA
normal mode L
0.24 0.33 0.42
µA
fast mode L
31 44 57
µA
V19
AGC voltage
see Fig.4
maximum gain
0
tbn −
V
V13
threshold voltage level
for additional charging current
minimum gain
see Fig.7
L
−
tbn VP − 0.7 V
1.9 1.95 2.0
V
for fast L mode
L
1.6 1.65 1.7
V
November 1992
9
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