MC13081X 查看數據表（PDF） - Motorola => Freescale
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MC13081X
Motorola => Freescale
MC13081X Datasheet PDF : 20 Pages
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MC13081X
APPLICATION INFORMATION
The MC13081X is an integrated multisync color monitor
processor. It combines horizontal/vertical deflection processing
circuitry and video pre–amplifiers into a single device.
The overall timebase section consists of two parts:
horizontal and vertical. The horizontal timebase can be
operated from 30 kHz to 64 kHz, and can be driven from TTL
separate sync, composite sync, or a composite video signal.
There are two PLLs which ensure proper timing throughout
the whole system. The first PLL provides line locking of the
horizontal sync signal with the built–in oscillator, while the
second one maintains fixed timing with the horizontal flyback
signal such that a stable display can be achieved.
The vertical timebase section operates from 45 Hz to
100 Hz, and can receive various sync signals as the
horizontal one does. This section consists of an oscillator and
a ramp generator. Adjustments include linearity, ramp
amplitude, and minimum free running frequency in the
absence of sync signal.
The video section has three 70 MHz bandwidth
pre–amplifiers. The outputs of these amplifiers are
uncommitted collector/emitter facilitating cascode
configuration with subsequent stages. Controls include
brightness and contrast. In addition, the voltage gain of each
amplifier can be adjusted individually which provides
flexibility in adjusting color correctness. Blanking and
clamping signals are provided to the amplifiers internally from
the timebase section. Additionally, a blanking signal can also
be supplied externally.
Separate power supply and ground pins are provided to
the timebase and video section in order to minimize the cross
interference between these two sections.
Figure 2. Application Circuit
VR2
VR3 C6
R12
VR4
5.0 Vref
VR5
Vd
R13
VR6
Vd
R14
C4
C5
R9
R10 C7
C8
C9
1
32
52
51
48 47
55
44
46 43
V–Sync
H–Sync
R
G
B
4 Vertical
TTL Sync
5
Horizontal TTL Sync
C1 23
Channel 1 Video In
C2 25 Channel 2 Video In
C3 27
Channel 3 Video In
R1 R2 R3
Vd
R4
R5
VR1
R6
28
Video Gnd
11
AFC
12 Horizontal Freq Control
MC13081X
Video 29 Va
VCC1
Timebase 56 Vd
VCC2 39
Channel 1 Emitter Out
R19
38
Channel 1 Clamp
C22
34
Channel 2 Emitter Out
R20
33
Channel 2 Clamp
31 C23
Channel 3 Emitter Out
Channel 3 Clamp
Channel 1 Collector Out
Channel 2 Collector Out
Channel 3 Collector Out
30
C24
40
37
32
R21
Va
Vd
Va
C25 C26
10 C10
9
C11
R7
R8
R15 C13
20
24
26 18
19
6 13
42 45 41
R16
5.0 Vref 5.0 Vref
C20
VR7
C12
VR8
VR9
VR10
C17
C14 C15
C16
C18
C19
VR11
R17
C21
R18
8.0 Vdc
L1
L2
Vd
C27
C28 C29
R1–R3,R17
R4–R6
R7
R8
R9
R10
R12
R13
R14
R15
R16
R18
R19–R21
75 Ω
15 kΩ
3.9 MΩ
6.8 MΩ
8.2 kΩ
220 kΩ
220 kΩ
2.2 kΩ
470 Ω
5.6 kΩ
5.1 kΩ
10 kΩ
330 Ω
C1–C3
C4,C6–C9,C13–C19,C22–C24,C29
C5,C20
C10
C11
C12
C21
C27
C26,C28
C30,C31
2.2 µF
100 nF
10 nF
1.0 nF
100 nF
22 µF
10 nF
100 µF
47 µF
1.0 µF
L1
50 µH
L2
50 µH
VR1,VR5–VR11
VR2
VR3
VR4
10 kΩ
5.0 kΩ
200 kΩ
1.0 MΩ
MOTOROLA ANALOG IC DEVICE DATA
11
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