參數(shù)資料
型號： 935261351112
廠商： NXP SEMICONDUCTORS
元件分類： 顏色信號轉(zhuǎn)換
英文描述： COLOR SIGNAL DECODER, PDIP32
封裝： 0.400 INCH, PLASTIC, SOT-232, SDIP-32
文件頁數(shù)： 16/47頁
文件大?。?/td> 390K
代理商： 935261351112
1996 Jan 17
23
Philips Semiconductors
Preliminary specication
I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator
TDA9144
FSCOMB OUTPUT (PIN 23)
Vsub(p-p)
subcarrier output voltage amplitude
(peak-to-peak value)
CL = 15 pF
150
200
300
mV
Vcen
comb enable voltage level
4.0
4.2
5.0
V
Vcdis
comb disable voltage level
0.1
1.4
V
Isink
sink current to undo forced Y/C mode
of input switch
0.4
1.0
mA
RGND
value of grounded resistor to undo
forced Y/C mode of input switch
4
10
k
ACC
ACC control range
20
+6
dB
change of
(RY) and (BY) signals
over range
1dB
colour killer treshold
PAL/NTSC
34
31
28
dB
SECAM
31
28
25
dB
kill/unkill hysteresis
3
dB
Demodulators;
(RY) and (BY) outputs (pins 1 and 2); demodulated Y
helper (pin 12)
GENERAL
ratio of
(BY) to (RY)
standard colour bar
1.20
1.27
1.34
TC
temperature coefcient of
(RY) and
(BY) amplitude
0.1
%/K
spread of
(RY) to (BY) ratio
between standards
1
+1
dB
V(RY)
output level of
(RY) output during
blanking level
1.7
2.1
2.5
V
V(BY)
output level of
(BY) output during
blanking level
1.7
2.0
2.5
V
B
bandwidth at
3 dB
600
670
750
kHz
Zo
output impedance
500
V
CC
supply voltage dependence
2
%/V
hue phase shift
note 3
±35
±45
±55
deg
PAL/NTSC DEMODULATOR
V(RY)(p-p)
(RY) output voltage
(peak-to-peak value)
standard colour bar
480
540
605
mV
V(BY)(p-p)
(BY) output voltage
(peak-to-peak value)
standard colour bar
610
685
765
mV
Vres(p-p)
8.8 MHz residue (peak-to-peak value) both outputs
15
mV
Vres(p-p)
7.2 MHz residue (peak-to-peak value) both outputs
20
mV
Vres(p-p)
4.4 and 3.6 MHz residue
both outputs
tbf
mV
S/N
signal-to-noise ratio
0 to 1 MHz
46
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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