MC44145D MOTOROLA [Motorola, Inc], MC44145D Datasheet

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MC44145D

Manufacturer Part Number
MC44145D
Description
PIXEL CLOCK GENERATOR / SYNC SEPARATOR
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet

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Part Number:
MC44145D
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FREESCALE
Quantity:
20 000
Pixel Clock Generator/
Sync Separator
family.
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.
Motorola high density, high speed, low voltage, process called MOSAIC 1.5 .
MOSAIC is a trademark of Motorola, Inc.
MOTOROLA ANALOG IC DEVICE DATA
The MC44145, Pixel Clock Generator, is a component of the MC44000
The MC44145 contains a sync separator with composite sync and vertical
The MC44145 is available in a SO–14 package and is fabricated in the
6
V CC
Comparator
Phase and
Frequency
9
F ref
12
NBACK
Video In
13
Up
Dn
This device contains 214 active transistors.
Representative Block Diagram
Charge
Pump
1
NPD
Gain
Separator
Sync Sep
11
Sync
V CC
14
R
C
V C
A
PLL Loop
Filter
C2
3
Sync Out
B
MC44145
VCO
5
C
4
In
Sync Amp
External
Divider
7
A
B
10
Clock Out
2
Out
F O
Div 2
8
EN
2F O
2
Gnd
MC44145D
Motorola, Inc. 1996
Device
Sync Amp In
PIXEL CLOCK GENERATOR/
NPD Gain
Clock Out
Sync C
Sync B
V CC
Gnd
ORDERING INFORMATION
SYNC SEPARATOR
MC44145
PIN CONNECTIONS
SEMICONDUCTOR
Temperature Range
TECHNICAL DATA
Order this document by MC44145/D
1
2
3
4
5
6
7
PLASTIC PACKAGE
T A = 0 to +70 C
14
Operating
CASE 751A
(Top View)
D SUFFIX
(SO–14)
1
14
13
12
11
10
9
8
PLL Loop Filter
NBACK
Video In
V CC2
Sync Amp Out
F ref
Div 2 EN
Package
SO–14
Rev 0
1

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MC44145D Summary of contents

Page 1

... A B Sync Amp Clock Out Gnd External Divider Device MC44145D Motorola, Inc. 1996 Order this document by MC44145/D MC44145 SYNC SEPARATOR SEMICONDUCTOR TECHNICAL DATA SUFFIX PLASTIC PACKAGE CASE 751A (SO–14) PIN CONNECTIONS NPD Gain PLL Loop Filter ...

Page 2

MAXIMUM RATINGS Rating Supply Voltage Storage Temperature Range Operating Junction Temperature NOTE: ESD data available upon request. RECOMMENDED OPERATING CONDITIONS Characteristic Symbol Supply Voltage V CC2 Video Input Amplitude (Note 2) NBACK Pulse Width NBACK F ref Pulse Width Operating ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) Characteristic SYNC SEPARATOR ( 5 unless otherwise specified.) VCO ( 5 unless otherwise specified, divider disabled.) F min F max Control ...

Page 4

Composite Sync Separator The composite sync separation section is comprised of two blocks, a sync slicer and a sync amplifier, which can be used to extract the vertical sync and composite sync information from a video signal. The sync separator ...

Page 5

Composite Sync Separator The sync separator is an adaptive slicer. It will output “raw” sync data. Two outputs are given, thus allowing one output to be used for composite sync and the other output to be integrated and then sliced ...

Page 6

F 1.0 k Video In Figure 3. Typical VCO Transfer Characteristics 1.0 Video Input (Pin 12) 0.2 s Sync C Out (Pin 5) 1.0 s Composite Sync Input (Pin 12 ...

Page 7

This section is not intended as a complete loop theory; its aim is merely to point out the peculiarities of the loop, and provide the user with enough information for the filter components selection. For a more in–depth covering, the ...

Page 8

G –T– SEATING 14 PL PLANE 0.25 (0.010 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee ...

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