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)： 18/47頁
文件大?。?/td> 390K
代理商： 935261351112
1996 Jan 17
25
Philips Semiconductors
Preliminary specication
I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator
TDA9144
LUMINANCE DELAY; YD3 to YD0 = 1011; YH2 to YH1 = 01
td(on)
delay time colour on
fsc = 3.6 MHz; TB = 0
555
580
605
ns
fsc = 3.6 MHz and 4.4 MHz;
TB = 1
515
540
565
ns
td(off)
delay time colour off
350
370
390
ns
td(tun)
delay time tuning range
15 steps YD3 to YD0; note 2
280
+160
ns
td(tun)
Y to helper delay tuning range
3 steps YH2 to YH1
20
+25
ns
CHROMINANCE TRAP
fo
notch frequency
fsc = 3.6 MHz
3.53
3.58
3.63
MHz
fsc = 4.4 MHz
4.37
4.43
4.49
MHz
SECAM
4.23
4.29
4.35
MHz
Y/C and B/W mode
not active
B
bandwidth at
3dB
fsc = 3.6 MHz
2.60
2.80
3.00
MHz
fsc = 4.4 MHz
3.20
3.50
3.80
MHz
SECAM
2.90
3.15
3.50
MHz
fsc(sup)
subcarrier suppression
26
dB
CHROMINANCE BANDPASS
fres
resonant frequency
fsc = 3.6 MHz
3.40
3.58
3.76
MHz
fsc = 4.4 MHz
4.21
4.43
4.65
MHz
B
bandwidth at
3dB
fsc = 3.6 MHz
1.05
1.20
1.35
MHz
fsc = 4.4 MHz
1.25
1.40
1.55
MHz
CLOCHE FILTER
fres
resonant frequency
SECAM
4.26
4.29
4.31
MHz
B
bandwidth at
3 dB
SECAM
241
268
295
kHz
Sync input (pin 26)
VIDEO INPUT
VY/CVBS(p-p)
sync pulse amplitude
(peak-to-peak value)
35
300
600
mV
slicing level
40
47
55
%
td
delay of sync pulse due to internal
lter
0.2
0.3
0.4
s
Nth
noise detector threshold level
18
20
22
dB
H
hysteresis
235dB
td
delay between internally separated
vertical sync pulse and video signal
12
18.5
27
s
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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