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參數(shù)資料
| 型號(hào)： | TDA4691 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 信號(hào)分離 |
| 英文描述： | Sync Processor with Clock SPC |
| 中文描述： | SYNC SEPARATOR IC, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, SOT-146-1, DIP-20 |
| 文件頁數(shù)： | 11/26頁 |
| 文件大?。?/td> | 206K |
| 代理商： | TDA4691 |
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September 1993
11
Philips Semiconductors
Preliminary specification
Sync Processor with Clock (SPC)
TDA4691
t
3
time relation between pin 20 and
blanking
H-blanking time
start time H-pulse pin 20 to stop time
burstkey pin 6; 50 Hz
start time H-pulse pin 20 to stop time
burstkey pin 6; 60 Hz
V-blanking pulse; 50 Hz
see Fig.9
3.5
4.0
4.5
μ
s
t
4
t
5
see Fig.9
H-sync = 4.7
μ
s;
see Fig.9
see Fig.9
8.0
11.8
9.0
9.7
μ
s
μ
s
t
5
7.5
8.6
9.2
μ
s
t
6
2.5 to
+
22.5
3.0 to
+
17
lines
t
6
V-blanking pulse; 60 Hz
lines
Integration
(pin 5)
V
5
no TV signal
TV signal
slow time constant on
see Fig.16
see Fig.16
0
4
5
2
6.2
V
V
V
V
5
Signal identification
(pin 4; open collector via R
4
to V
19
or V
12
)
V
4
voltage pin 4, if no signal is identified
I
4
= 1 mA
I
4
= 5 mA
0
0
0.2
0.3
0.8
V
19
50
V
V
V
μ
A
V
4
I
4
voltage pin 4, if signal is identified
leakage current
Integration
(pin 2; see Fig.15)
V
2
V
2
V
2
V
2
no signal at pin 20
noise at input pin 20
switching T
3
to T
1
(delay 7 fields)
switching T
3
to T
1
(noise and signal at input pin 20)
release V-divider
hysteresis
release time constant normal (T
2
)
signal identification at pin 4
hysteresis
release noise detector
1.5
3
2.5
2.5
V
V
V
V
V
2
4
0.2
5
V
V
V
V
2
0.2
6.5
V
V
V
2
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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