|
MC44818 Datasheet, PDF (1/8 Pages) Motorola, Inc – TV AND VCR PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND I2C BUS | |||
|
PLL Tuning Circuit
with I2C Bus
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 divideâbyâ8 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 Motorolaâs 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 3âWire Bus Compatible
⢠Divideâbyâ8 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.
⢠3âState 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.
Order this document by MC44818/D
MC44818
TV AND VCR
PLL TUNING CIRCUIT
WITH 1.3 GHz PRESCALER
AND I2C BUS
SEMICONDUCTOR
TECHNICAL DATA
16
1
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SOâ16)
PIN CONNECTIONS
Device
MC44818D
ORDERING INFORMATION
Operating
Temperature Range
TA = â20° to +80°C
Package
SOâ16
SDA 1
SCL 2
XTAL 3
Amp In 4
VTUN 5
VCC2 33 V 6
VCC1 5.0 V 7
HF In 8
16 AS
15 Lock
14 VCC3 12 V
13 B3
12 B2
11 B1
10 B0
9 Gnd
(Top View)
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 2
1
|
▷ |