DEM-DAI1742
EVALUATION FIXTURE
www.ti.com
ML
MC
MDI RST MDO
GND +V
DD
GND
V
CC
AV
CC
鈥?GND AV
CC
+
3.3V
SW006
Format Control
M2, M1, M0
Regulator
V
CC
Opt
JUMPER
Digital
Audio
Receiver
DAI
(BUS)
Select
SCKI
CLKO
BCK
LRCK
DATA
PCM1742
L/R Ch
L-Channel
2nd-Order LPF
OPA2134
R-Channel
Coax
External I/F
(CN004)
FEATURES
q
COMPLETE EVALUATION PLATFORM FOR
THE PCM1742 STEREO AUDIO DAC
q
ONBOARD LOW-PASS FILTERS FOR THE
LEFT AND RIGHT CHANNELS
q
EASY CONFIGURATION USING ONBOARD
SWITCHES AND JUMPERS
q
96kHz DIGITAL AUDIO RECEIVER ACCEPTS
S/PDIF AND OPTICAL INPUTS
q
DEMONSTRATION SOFTWARE FOR
PROGRAMMING THE PCM1742鈥橲 INTERNAL
REGISTERS (REQUIRES A PC RUNNING
MICROSOFT WINDOWS
廬
3.1, 95, 98)
q
CENTRONICS CONNECTOR FOR
INTERFACING TO A PC PARALLEL PORT
(REQUIRED FOR THE DEMONSTRATION
SOFTWARE)
q
POWER-SUPPLY REQUIREMENTS: +5V,
+15V, AND 鈥?5V
q
CONNECTOR FOR OPTIONAL EXTERNAL
+3.3V POWER SUPPLY
Windows is a registered trademark of Microsoft Corp.
DESCRIPTION
The DEM-DAI1742 is a complete evaluation plat-
form for the PCM1742 24-bit, 192kHz stereo audio
Digital-to-Analog Converter (DAC). All necessary
connectors and circuitry are provided for interfacing
to audio test systems and commercial audio equip-
ment.
Copyright 漏 2001, Texas Instruments Incorporated
SBAU034
Printed in U.S.A. January, 2001