MC145402L Motorola, MC145402L Datasheet

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MC145402L

Manufacturer Part Number
MC145402L
Description
13-linear codec
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
Serial 13-Bit Linear Codec
(A/D and D/A)
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.
This document contains information on a new product. Specifications and information herein are subject to change without notice.
MOTOROLA
A out
A in
The MC145402 is a 13–bit linear monotonic digital–to–analog and analog–
Motorola, Inc. 1995
60 dB Signal–to–(Noise Plus Distortion) Ratio Typical
On–Chip Precision Voltage Reference
Serial Data Ports
Two’s Complement Coding
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
5 V Supply Operation
3
2
AND HOLD
AND HOLD
SAMPLE
SAMPLE
CONVERTER
COMPARATOR/
BANDGAP VOLTAGE
OP AMP
D/A
REFERENCE
CONTROLLER
MSI CCI PDI
SEQUENCE
6
BLOCK DIAGRAM
5
APPROXIMATION
4
SUCCESSIVE
SELECTOR
REGISTER
DATA
V DD V SS
16
TRANSMIT
RECEIVE
LATCH
LATCH
8
V AG
1
V DG
REGISTER
TRANSMIT
REGISTER
9
RECEIVE
SHIFT
SHIFT
16
MC145402L
ORDERING INFORMATION
MC145402
1
15
14
V AG
A out
13
10
12
TDF
V SS
11
MSI
CCI
A in
PDI
7
RDD
RDC
RCE
TDF
TDE
TDC
TDD
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
CERAMIC PACKAGE
Ceramic Package
Order this document
CASE 620
16
15
14
13
12
10
11
L SUFFIX
9
by MC145402/D
V DD
MC145402
RDD
RDC
RCE
TDD
TDE
V DG
TDC
1

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MC145402L Summary of contents

Page 1

... SELECTOR LATCH REGISTER SUCCESSIVE TRANSMIT TRANSMIT APPROXIMATION SHIFT LATCH REGISTER REGISTER Order this document by MC145402/D MC145402 16 L SUFFIX 1 CERAMIC PACKAGE CASE 620 ORDERING INFORMATION MC145402L Ceramic Package PIN ASSIGNMENT out 15 2 RDD RCE PDI RDC TDC CCI 5 TDD 11 MSI 6 TDE TDF ...

Page 2

... Typ Max Unit 10 10 — 16 kHz — 21.3 — 64 — 512 kHz — 4096 kHz 3.27 — Vp 9.5 — dBm Min Max Unit 3.5 — V — 1.5 V — 1.0 A — 4.9 — V 4.3 — — 0.1 V — 0.4 MOTOROLA ...

Page 3

... Input Current AC Input Impedance Input Capacitance Output Voltage Range Power Supply Rejection Ratio (100 mV RMS – 50 kHz) Crosstalk out and RDD to TDD Referenced to 0 dBm0 @ 1.02 kHz Slew Rate Settling Time (Full Scale) MOTOROLA ( 5 – 5 Coder (A/D) Min Typ Max 13 — ...

Page 4

... MSI 4.1 MHz — 150 ns — 150 ns 0 100 ns — — ns 100 — 20 — — ns 100 — 100 — ns 100 — — — ns 100 — 60 — ns 100 — ns MOTOROLA ...

Page 5

... TDE t su6 t su1 t su2 TDC TDD MSI t su4 CCI CCI LAST RCE t su8 RDC t su10 RDD MOTOROLA su5 t su9 B11 B10 Figure 1. AC Timing Diagram su7 t wL CCI LAST t su3 LAST BIT CLOCK B1 B0 MC145402 5 ...

Page 6

... A logic 1 on this pin formats the data as follows: SM ... LSSS (see Fig- ure 3). RDD data is not affected by the state of this pin and if a “digital loopback” is needed (TDD data looped back into RDD), this pin should be high. MOTOROLA ...

Page 7

... CCI cycles following the rising edge of MSI. This may be achieved by setting MSI = TDE = RCE having a duration of 16 data clock cycles, and TDC = RDC MOTOROLA frequency. Figure 6 shows a circuit that generates this clock- ing configuration; see Application Circuits section. SIGNAL TO DISTORTION RATIO Figures 4 and 5 show graphs of typical signal to distortion ratios versus signal level for the MC145402 ...

Page 8

... Therefore, the calibration level, or transmission level point (TLP), for this part is 6.30 dBm (600 ), which is 1.6 Vrms based on the reference voltage of 3.27 V. MOTOROLA ...

Page 9

... Figure 2. MC145402 Full and Short Cycle Timing MOTOROLA MC145402 9 ...

Page 10

... MC145402 10 Figure 3. MC145402 Digital Data Timing MOTOROLA ...

Page 11

... COMPARED TO 9–13 BIT IDEAL D/A; MSI = 8 kHz; 70 MEASURED THROUGH A LOW–PASS FILTER WITH A BANDWIDTH – 60 – 50 Figure 5. MC145402 Decoder (D/A) Signal to Noise Plus Distortion Ratio MOTOROLA f MSI /2 – 40 – 30 – 20 – 10 INPUT LEVEL (dBm0) (1020 Hz REFERENCED TO 600 ) f MSI /2 – 40 – 30 – 20 – 10 ...

Page 12

... MC145402 12 Figure 6. Typical MC145402 Configuration MOTOROLA ...

Page 13

... V 1/2 MC74HC74 CLK DSP56000 SCK SC2 CLK 1/2 MC74HC74 SRD STD V SS Figure 7. The MC145402, 13–Bit Linear Codec, Interfaced to a Motorola DSP56000, MOTOROLA 32 f sample f sample + 5 V 1/2 MC74HC73 256 CLK kHz 1.024 MHz CLK 1/2 MC74HC73 8 kHz ...

Page 14

... C — 0.165 — 4.19 D 0.015 0.021 0.39 0.53 0.050 BSC 1.27 BSC E 0.055 0.070 1.40 1.77 F 0.100 BSC 2.54 BSC G 0.009 0.011 0.23 0.27 J — 0.200 — 5.08 K 0.300 BSC 7.62 BSC 0.015 0.035 0.39 0.88 N MOTOROLA ...

Page 15

... MOTOROLA This page intentionally left blank. MC145402 15 ...

Page 16

... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “ ...

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