參數(shù)資料
型號(hào)： AN5693
廠商： Panasonic Corporation
英文描述： Luminance,Chroma and Sync. Signals Processing ICwith Built-in I2Cbus Interfacefor PAL/NTSC Color-TV
中文描述： 亮度，色度和同步。信號(hào)處理ICwith內(nèi)置I2Cbus Interfacefor PAL / NTSC制式彩色電視
文件頁數(shù)： 24/34頁
文件大小： 325K
代理商： AN5693
24
AN5693K
ICs for TV
I
Pin Equivalent Circuit(Continued)
Pin No.
Equivalent Circuit
Function
Status
42
Horizontal Oscillator Pin :
Oscillates by 32
×
f
H
=
500 kHz
ceramic resonator
Horizontal and vertical pulses are made
by the IC internal count down circuit
AC
f
=
32 f
H
(about
500 kHz)
43
Over Voltage Protection Input Pin :
Input pin is used by X-ray protector
circuit for over voltage
By internal logic circuit, when H out
pulse is low, shut down starts
(Prevent damaging the horizontal drive
transistor)
DC
usually
0 V
44
Horizontal Pulse Output Pin :
Duty is about 37 %
AC
(Pulse)
45
Vertical Frequency Detection Output Pin :
The output of the result of the internal
counter of the vertical synchronous
signal period
f
V
=
60 Hz : V45 is "H"
=
50 Hz : V45 is "L"
DC
0 V
or
5 V
(V
CC2
)
22 k
10 k
10 k
80
μ
A
220 pF
200
μ
A
100
μ
A
N750
300
42
Temperature characteristics
present for N750
(V
CC2
)
3 V
4.3 V
20 k
20 k
20 k
40 k
43
To
count down
(V
CC2
)
4.3 V
19 k
40 k
Hor. out
3.5 V
0 V
44
10 k
50
5 V
(V
CC3
)
+
5V(
μ
-com V
CC
)
45
100 k
33 k
To
μ
-com
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參數(shù)描述
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