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by MC145500/D
SEMICONDUCTOR TECHNICAL DATA
The MC145500, MC145501, MC145502, MC145503, and MC145505 are all
per channel PCM Codec–Filter mono–circuits. These devices perform the voice
digitization and reconstruction as well as the band limiting and smoothing
required for PCM systems. The MC145500 and MC145503 are general
purpose devices that are offered in a 16–pin package. They are designed to
operate in both synchronous and asynchronous applications and contain an
on–chip precision reference voltage. The MC145501 is offered in an 18–pin
package and adds the capability of selecting from three peak overload voltages
(2.5, 3.15, and 3.78 V). The MC145505 is a synchronous device offered in a
16–pin DIP and wide body SOIC package intended for instrument use. The
MC145502 is the full–featured device which presents all of the options of the
chip. This device is packaged in a 22–pin DIP and a 28–pin chip carrier package
and contains all the features of the MC145500 and MC145501 plus several
more. Most of these features can be made available in a lower pin count
package tailored to a specific user’s application. Contact the factory for further
details.
L SUFFIX
CERAMIC PACKAGE
CASE 620
16
MC145500/03/05
1
P SUFFIX
PLASTIC DIP
CASE 648
16
These devices are pin–for–pin replacements for Motorola’s first generation of
MC14400/01/02/03/05 PCM mono–circuits and are upwardly compatible with
the MC14404/06/07 codecs and other industry standard codecs. They also
maintain compatibility with Motorola’s family of MC33120 and MC3419 SLIC
products.
The MC145500 family of PCM Codec–Filter mono–circuits utilizes CMOS
due to its reliable low–power performance and proven capability for complex
analog/digital VLSI functions.
1
MC145503/05
L SUFFIX
CERAMIC PACKAGE
CASE 726
18
MC145501
1
MC145500 (This Device is Not Recommended for New Designs)
L SUFFIX
CERAMIC PACKAGE
CASE 736
•
•
•
16–Pin Package
22
Transmit Bandpass and Receive Low–Pass Filter On–Chip
Pin Selectable Mu–Law/A–Law Companding with Corresponding Data
Format
1
MC145502
•
•
•
On–Chip Precision Reference Voltage (3.15 V)
Power Dissipation of 50 mW, Power–Down of 0.1 mW at ± 5 V
Automatic Prescaler Accepts 128 kHz, 1.536, 1.544, 2.048, and 2.56 MHz
for Internal Sequencing
P SUFFIX
PLASTIC DIP
CASE 708
22
1
MC145501 — All of the Above Plus:
(This Device is Not Recommended for New Designs)
MC145502
•
•
•
18–Pin Package
DW SUFFIX
SOG PACKAGE
CASE 751G
Selectable Peak Overload Voltages (2.5, 3.15, 3.78 V)
Access to the Inverting Input of the TxI Input Operational Amplifier
16
1
MC145502 — All of the Above Plus:
MC145503/05
•
•
•
22–Pin and 28–Pin Packages
FN SUFFIX
PLCC PACKAGE
CASE 776
Variable Data Clock Rates (64 kHz to 4.1 MHz)
Complete Access to the Three Terminal Transmit Input Operational
Amplifiers
28
MC145502
1
•
An External Precision Reference May Be Used
MC145503 — All of the Above Features of the MC145500 Plus:
•
•
16–Pin Package
Complete Access to the Three Terminal Transmit Input Operational Amplifiers
MC145505 — Same as MC145503 Except:
•
•
16–Pin Package
Common 64 kHz to 4.1 MHz Transmit/Receive Data Clock
REV 1
9/95 (Replaces ADI1287)
Motorola, Inc. 1995
MOTOROLA
MC145500•MC145501•MC145502•MC145503•MC145505
1