®
DEM-DAI
EVALUATION FIXTURE
FEATURES
DESCRIPTION
●
DIGITAL AUDIO RECEIVER AND TRANSMITTER
SUPPORTS S/PDIF DIGITAL AUDIO INTERFACE
(both RCA coaxial cable and optical connections)
The DEM-DAI demonstration board provides a standard
platform for evaluating Burr-Brown digital audio prod-
ucts including stereo DAC, ADC and CODEC devices.
The DEM-DAI board includes a digital audio receiver
and transmitter, along with their associated support
circuitry. The receiver and transmitter accept and output
S/PDIF digital audio streams via RCA and optical con-
nections. The DEM-DAI board also includes an on-
board crystal oscillator/divider circuit for generating the
required audio clocks independent of the digital audio
receiver.
● PROGRAMMABLE SYSTEM CLOCK SOURCE:
Digital Audio Receiver or Crystal Oscillator
● PROGRAMMABLE SYSTEM CLOCK RATE: 256fS,
384fS, or 512fS
● NORMAL OR INVERTED SYSTEM CLOCK INPUT
FOR DIGITAL AUDIO TRANSMITTER
● MASTER OR SLAVE MODE OPERATION
● RECEIVER AND TRANSMITTER MODE SELEC-
In addition to the digital audio interface and timing
circuits, there are connectors for DEM-PCM demo
boards, power supplies, and stereo audio inputs and
outputs. On-board switches and jumpers are used to
configure the DEM-DAI board for use with a variety of
DEM-PCM demo boards. An on-board DAC post filter
circuit is also included and is located near the stereo
audio output connectors.
TION VIA TOGGLE SWITCHES
● DIP SWITCH FOR SETTING DIGITAL TRANSMIT-
TER FLAGS
● HEADER CONNECTIONS ACCEPT DEM-PCM
DEMO BOARDS
● RCA JACKS FOR STEREO AUDIO INPUTS AND
OUTPUTS
● ON-BOARD STEREO DAC POST FILTER
● POWER SUPPLY CONNECTOR FOR DIGITAL
AND ANALOG POWER SUPPLIES
● OPERATES FROM A SINGLE +5V SUPPLY FOR
THE DIGITAL AUDIO INTERFACE SECTION
● DAC POST FILTER OPERATES FROM
15V
±5V TO
±
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
© 1998 Burr-Brown Corporation
Printed in U.S.A. December, 1998
LI-5123A
DEM-DAI