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MC145074D Datasheet PDF : 14 Pages
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Product Preview
Stereo Audio Sigma-Delta
Digital-to-Analog Converter
CMOS
The MC145074 is a high precision, Stereo Audio Digital–to–Analog
Converter that utilizes second order sigma–delta modulators with 2–tap FIR
feedback architecture. The part can be used as a stand alone stereo digital
modulator, or as a companion part to the MC145076 smoothing filter to achieve
high quality, low cost audio performance.
• Peak S/(N+D) > 100 dB
• Single 5 V Supply Operation
• Accepts 16, 18, or 20–Bit Data Words
• Dual/Single Pin Data Input Modes
• Programmable WCLK Divider
• Operating Temperature Range: – 40 to + 85°C
• Low Power Consumption: 40 mW Typical
• Companion to MC145076 Stereo Audio FIR Smoothing Filter
Order this document
by MC145074/D
MC145074
16
1
D SUFFIX
16 PIN SOIC
CASE 751B–05
ORDERING INFORMATION
MC145074D
SOIC Package
PIN ASSIGNMENT
VDD 1
STBY 2
DIL/WDLY 3
DIR/DILR 4
BCLK 5
WCLK 6
MSTR 7
VSS 8
16 DOL
15 RES0
14 RES1
13 DMODE
12 Xin
11 Xout
10 DIV2
9 DOR
VDD
1
8
VSS
STBY 2
DIL/WDLY 3
DIR/DILR 4
BCLK 5
DMODE 13
RES1 14
RES0 15
WCLK
6
MSTR
7
DIV2
10
CONTROL
LOGIC
LEFT CHANNEL
SERIAL/PARALLEL OFFSET SCALER
INTERFACE
Σ±∆
MODULATOR
RIGHT CHANNEL
SERIAL/PARALLEL OFFSET SCALER
INTERFACE
Σ±∆
MODULATOR
TIMING
CHOP
16 DOL
CHOP
9
DOR
12 Xin
11 Xout
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
REV 1
5/96
M© OMoTtoOroRla,OInLc.A1996
MC145074
1
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