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PDF MC145402 Data sheet ( Hoja de datos )
| Número de pieza | MC145402 | |
| Descripción | Serial 13-Bit Linear Codec | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MC145402 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
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
16
1
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.
©MOMoTtoOroRla,OInLc.A1995
MC145402
1
1 page  
tsu6
TDE tsu6′
tsu1 tsu2
TDC
tp1
tp2
tp1
TDD
tp3
twH
MSI
tsu4
CCI CCI
LAST
tsu5
RCE
tsu8 tsu9
RDC
tsu10
th
RDD S B11
B10
Figure 1. AC Timing Diagram
tp4 tsu7
twL
CCI
LAST
tsu3
LAST
BIT
CLOCK
B1 B0
MOTOROLA
MC145402
5
5 Page 
80
COMPARED TO 9–13 BIT IDEAL A/D; MSI = 8 kHz;
70 MEASURED THROUGH A LOW–PASS FILTER
WITH A BANDWIDTH OF f MSI/2
60
50
13–BIT
12–BIT
11–BIT
10–BIT
9–BIT
40
30
20
10
0
– 60 – 50 – 40 – 30 – 20 – 10
INPUT LEVEL (dBm0)
(1020 Hz REFERENCED TO 600Ω)
0
10
Figure 4. MC145402 Encoder (A/D) Signal to Noise Plus Distortion Ratio
80
COMPARED TO 9–13 BIT IDEAL D/A; MSI = 8 kHz;
70 MEASURED THROUGH A LOW–PASS FILTER
WITH A BANDWIDTH OF f MSI/2
60
50
13–BIT
12–BIT
11–BIT
10–BIT
9–BIT
40
30
20
10
0
– 60 – 50 – 40 – 30 – 20 – 10
INPUT LEVEL (dBm0)
(1020 Hz REFERENCED TO 600Ω)
0
10
Figure 5. MC145402 Decoder (D/A) Signal to Noise Plus Distortion Ratio
MOTOROLA
MC145402
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet MC145402.PDF ] | |
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