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參數(shù)資料
| 型號(hào)： | MC44145DR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 42 MHz, VIDEO CLOCK GENERATOR, PDSO14 |
| 封裝： | PLASTIC, SOP-14 |
| 文件頁(yè)數(shù)： | 1/46頁(yè) |
| 文件大小： | 919K |
| 代理商： | MC44145DR2 |
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Device
Operating
Temperature Range
Package
MC44145
SEMICONDUCTOR
TECHNICAL DATA
PIXEL CLOCK GENERATOR/
SYNC SEPARATOR
ORDERING INFORMATION
MC44145D
TA = 0° to +70°C
SO–14
PIN CONNECTIONS
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO–14)
14
1
(Top View)
14
13
12
11
10
9
8
1
2
3
5
6
7
4
PLL Loop Filter
NPD Gain
Gnd
Sync B
Sync Amp In
Sync C
VCC
Clock Out
NBACK
Video In
VCC2
Sync Amp Out
Fref
Div 2 EN
9–331
MOTOROLA ANALOG IC DEVICE DATA
Pixel Clock Generator/
Sync Separator
The MC44145, Pixel Clock Generator, is a component of the MC44000
family.
The MC44145 contains a sync separator with composite sync and vertical
outputs, and clock generation circuitry for the digitization of any video signal
along with the necessary circuitry for clock generation, such as a phase
comparator and a divide–by–2 to provide a 50% duty cycle.
The MC44145 is available in a SO–14 package and is fabricated in the
Motorola high density, high speed, low voltage, process called MOSAIC 1.5.
12
11
95
3
4
10
8
613
1
14
7
2
Representative Block Diagram
A
VCO
Charge
Pump
VC
Dn
Up
Phase and
Frequency
Comparator
VCC
NBACK
NPD
Gain
C
C2
PLL Loop
Filter
External
Divider
Clock Out
Gnd
MC44145
2FO
FO
B2
Div 2
EN
Out
A
In
C
B
Sync
Separator
VCC
Sync Sep
Video In
Fref
R
Sync Out
Sync Amp
This device contains 214 active transistors.
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