參數(shù)資料
型號: MC44818
廠商: Motorola, Inc.
英文描述: TV AND VCR PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND I2C BUS
中文描述: 電視機(jī)和錄像機(jī)鎖相環(huán)調(diào)諧電路與1.3 GHz的分頻器和I2C總線
文件頁數(shù): 1/8頁
文件大?。?/td> 158K
代理商: MC44818
SEMICONDUCTOR
TECHNICAL DATA
TV AND VCR
PLL TUNING CIRCUIT
WITH 1.3 GHz PRESCALER
AND I2C BUS
PIN CONNECTIONS
Order this document by MC44818/D
1
16
15
14
13
12
11
10
9
2
3
4
5
6
7
8
SDA
SCL
XTAL
VCC2 33 V
VCC1 5.0 V
HF In
AS
Gnd
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
16
1
Amp In
VTUN
Lock
VCC3 12 V
B3
B2
B1
B0
(Top View)
1
MOTOROLA ANALOG IC DEVICE DATA
The MC44818 is a tuning circuit for TV and VCR tuner applications. It
contains, on one chip, all the functions required for PLL control of a VCO.
This integrated circuit also contains a high frequency prescaler and thus can
handle frequencies up to 1.3 GHz. The MC44818 is a pin compatible drop in
replacement for the MC44817, where the only difference is the MC44818
has a fixed divide–by–8 prescaler (cannot be bypassed) and the MC44817
uses the three wire bus.
The MC44818 has a programmable 512/1024 reference divider and is
manufactured on a single silicon chip using Motorola’s high density bipolar
process, MOSAIC
(Motorola Oxide Self Aligned Implanted Circuits).
Complete Single Chip System for MPU Control (I2C Bus). Data and
Clock Inputs are 3–Wire Bus Compatible
Divide–by–8 Prescaler Accepts Frequencies up to 1.3 GHz
15 Bit Programmable Divider Accepts Input Frequencies up to 165 MHz
Reference Divider: Programmable for Division Ratios 512 and 1024.
3–State Phase/Frequency Comparator
Operational Amplifier for Direct Tuning Voltage Output (30 V)
Four Integrated PNP Band Buffers for 40 mA (VCC1 to 14.4 V)
Output Options for the Reference Frequency and the
Programmable Divider
High Sensitivity Preamplifier
Circuit to Detect Phase Lock
Fully ESD Protected
MOSAIC is a trademark of Motorola, Inc.
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC44818D
TA = –20
°
to +80
°
C
SO–16
Motorola, Inc. 1996
Rev 2
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MC44818D 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:TV AND VCR PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND I2C BUS
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