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參數(shù)資料
| 型號： | 935213280112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL DECODER, PDSO20 |
| 封裝： | SOT-163 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 93K |
| 代理商： | 935213280112 |
October 1991
6
Philips Semiconductors
Preliminary specication
SECAM decoder
TDA8395
Notes to the characteristics
1. If measured in the burst-period of a blue line.
2. The video input is AC-coupled.
3. During scan.
4. Measured as 100% x (IVuI - IVII) / (IVuI + IVlI); see Fig.3.
5. Converted to input frequency error.
6. Defined as the ratio between the peak-to-peak value of the B
Y component of the demodulated 100/75 colour bar
and the peak-to-peak value of the noise.
7. The reference should be stable during frame blanking.
8. The SECAM enable and disable timing should preferably be at the end of the frame blanking.
9. The externally supplied voltage should exceed 0.5 V.
Sandcastle pulse
Vbl
blanking detection level
1.0
1.25
1.5
V
Vbg
burst gate detection level
3.5
3.85
4.2
V
tf
falling edge of burst gate to
start sync
8.5
9.0
9.5
s
Reference/communication
fref
reference frequency
note 7
4.4336
MHz
Vref(p-p)
reference voltage amplitude
(peak-to-peak value)
0.20
0.50
V
Ved
SECAM enable detection
level; pin 1
2.8
3.3
V
Vdd
SECAM disabled detection
level; pin 1
note 8
1.5
2.0
V
Is
sink current at SECAM
identication; pin 1
note 9
150
A
Identication
ti
identication time
4
frames
H
colour on/off hysteresis
3
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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