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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(yè)數(shù)： | 8/26頁(yè) |
| 文件大小： | 206K |
| 代理商： | TDA4691 |
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September 1993
8
Philips Semiconductors
Preliminary specification
Sync Processor with Clock (SPC)
TDA4691
CHARACTERISTICS
V
P1
= 8 V; V
P2
= 5 V; measured at T
amb
=
+
25
°
C; unless otherwise specified; application see Figs 10 and 11; video
input signal referenced to CCIR standard.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
(pins 19 and 12; all voltages are measured with regard to ground (pins 3 and 8))
V
19
I
P1
V
12
I
P2
P
tot
supply voltage
supply current
supply voltage
supply current
total power dissipation
7.2
4.5
8.0
20
5.0
15
260
8.8
30
5.5
30
430
V
mA
V
mA
mW
same rise time as V
19
Sync separator
(pin 20)
V
20(p-p)
V
20(p-p)
R
G
I
20
I
20
input voltage (peak-to-peak value)
sync amplitude (peak-to-peak value)
source resistor of generator
current during sync
current during remaining time
AC coupled
0.1
1
30
1
2
0.6
1
V
V
k
μ
A
μ
A
Black level
(pin 1)
SLH
SLV
slicing level H
slicing level V
50
50
%
%
Sync output
(pin 9)
V
9
V
9
C
L
t
1
t
2
no sync
positive sync
load capacitance
time delay between pin 20 and pin 9
time delay between pin 20 and pin 9
I
9
=
+
1 mA
I
9
=
1 mA
2.7
100
100
0.3
200
300
V
12
40
500
500
V
V
pF
ns
ns
see Fig.3
see Fig.3
Phase detector
(pins 16 and 17)
f
0
f
0
’
I
17
nominal sync frequency
f
osc
: 864 = phiref
current at sync time
(fast and normal time constant)
current at sync time (slow time constant)
current at sync time
filter 2 voltage
filter 1 voltage
VCO sensitivity
15.625
15.625
±
240
kHz
kHz
μ
A
I
17
I
16
V
17
V
16
f
0
/
V
16
1.5
1.5
±
80
±
2
3
3
360
4.5
4.5
μ
A
mA
V
V
kHz/V
time constant T
1
see VCO
13.5 MHz VCO
(pin 15)
R
15
V
15
I
15
g
VCO
f
0
defining resistor
pin voltage (V
19
dependent)
current for 13.5 MHz
transconductance at f
0
see Fig.4(a)
see Fig.4(a)
2.9
720
15.2
3.75
3
800
3.1
880
18.6
k
V
μ
A
kHz/
μ
A
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