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參數資料
| 型號： | MC13081 |
| 廠商： | Motorola, Inc. |
| 英文描述： | MULTIMODE COLOR MONITOR PROCESSOR |
| 中文描述： | 多模彩色監(jiān)視器處理器 |
| 文件頁數： | 9/20頁 |
| 文件大小： | 342K |
| 代理商： | MC13081 |
MC13081X
9
MOTOROLA ANALOG IC DEVICE DATA
PIN FUNCTION DESCRIPTION (continued)
Pin
Description
Equivalent Internal Circuit
Name
41
X–Ray
Shutdown
X–Ray
Shutdown
5.0 V
41
47 k
If the voltage at this pin is > 0.58 V, the horizontal driver
device (Pins 42 and 43) will be “on” until power is
removed, or the voltage on this pin is taken below 0.4 V.
42
Horizontal
Drive Ground
VCC
R43
VCC
2.7 k
43
42
This emitter pin must be connected externally to a low
impedance ground.
Pin 43 is an open collector pin and normally is pulled
up by a resistor to VCC.
43
Horizontal
Drive
To Horizontal
Deflection
Circuit
Maximum current through Pins 42 and 43 must be
less than 40 mA.
44
Horizontal
Drive Width
5.0 V
24 k
Ramp 2
22 k
13.5 k
44
5.0 V
R44
Varying the voltage at this pin will change the
horizontal drive duty cycle.
As the voltage of this pin is increased, the “on” time at
Pin 43 is decreased.
Input impedance is
≈
30 k
.
45
Secondary
Phase
Detector Filter
Phase
Detector #2
250
μ
A
Horiz
OSC
Sync
250
μ
A
45
C45
VCC
Typically a 10 to 100 nF decoupling capacitor is
connected to this pin.
46
Horizontal
Flyback
0.7 V
To Phase
Detector #2
10 k
46
Flyback
Signal
The flyback signal should be a +VE pulse of peak
voltage 8.0 V. The internal switching voltage is 0.7 V
and it controls the secondary PLL
Input impedance is
≈
10 k
47
Video Blanking
Input
Blanking
2.0 k
47
20 k
The video blanking signal should be positive pulse in
the range of 1.5 to 4.0 V.
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