MC145402 Datasheet, PDF (1/16 Pages) Motorola, Inc – Serial 13-Bit Linear Codec

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by MC145402/D
Advance Information
Serial 13-Bit Linear Codec
(A/D and D/A)
The MC145402 is a 13–bit linear monotonic digital–to–analog and analog–
to–digital converter implemented in a single silicon–gate CMOS IC. Potential
applications include analog interface for Digital Signal Processor (DSP)
applications, high speed modems, telephone systems, SONAR, Adaptive
Differential Pulse Code Modulation (ADPCM) converters, echo cancellers,
repeaters, voice synthesizers, and music synthesizers.
• 60 dB Signal–to–(Noise Plus Distortion) Ratio Typical
• On–Chip Precision Voltage Reference
• Serial Data Ports
• Two’s Complement Coding
• ± 5 V Supply Operation
• Sample Rates from 100 Hz to 16 kHz (Both A/D and D/A), 100 Hz to
21.3 kHz (A/D Only), and 100 Hz to 64 kHz (D/A Only)
• Input Sample and Hold Provided On–Chip
• 5 V CMOS Inputs; Outputs Capable of Driving Two LSTTL Loads
• Available in a 16–Pin DIP
• Low Power Consumption: 50 mW Typical, 1 mW Power–Down
BLOCK DIAGRAM
MC145402
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L SUFFIX
CERAMIC PACKAGE
CASE 620
ORDERING INFORMATION
MC145402L Ceramic Package
PIN ASSIGNMENT
VAG 1 •
Aout 2
Ain 3
PDI ₄
CCI 5
MSI 6
TDF 7
VSS 8
16 ^VDD
15 RDD
14 RCE
13 RDC
12 TDC
11 TDD
10 TDE
9 VDG
BANDGAP VOLTAGE
REFERENCE
Aout
2
SAMPLE
AND HOLD
D/A
CONVERTER
DATA
SELECTOR
RECEIVE
LATCH
15 _RDD
RECEIVE
SHIFT
REGISTER
13
RDC
14
RCE
3
Ain
SAMPLE
AND HOLD
COMPARATOR/
OP AMP
SUCCESSIVE
APPROXIMATION
REGISTER
TRANSMIT
LATCH
TRANSMIT
SHIFT
REGISTER
7
TDF
10
TDE
12
TDC
11
TDD
SEQUENCE
CONTROLLER
65 4
MSI CCI PDI
16 8 1 9
VDD VSS VAG VDG
This document contains information on a new product. Specifications and information herein are subject to change without notice.
©_MOMo_Tto_Oro_Rla,_OIn_Lc._A1995
MC145402
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