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CDB4398

Evaluation Board for CS4398

Features

Demonstrates recommended layout and

grounding arrangements

CS8414 receives S/PDIF, & EIAJ-340

compatible digital audio

Headers for external audio input for either

PCM or DSD

Requires only a digital signal source and

power supplies for a complete Digital-to-

Analog-Converter system

Description

The CDB4398 evaluation board is an excellent means

for quickly evaluating the CS4398 24-bit, high perfor-

mance stereo D/A converter. Evaluation requires an

analog sig nal analyzer, a digital signal source, a P C for

controlling the CS4398 (stand alone operation is also

available ) and a power s upply. An alog line level ou tputs

are provided via RCA phono jacks and balanced XLR.

The CS8414 digit al audio receiver I.C. provides the sys-

tem timing necessary to operate the Digital-to-Analog

converter and will accept S/ PDIF, and EIAJ-340 compat-

ible audio data. The evaluation board may also be

configured to accept external timing and data signals for

operation in a user application during system

development.

ORDERING INFORMATIO N

CDB43 98 Evaluat ion Board

CS 4398

Analog

O utputs

MUTE

Control

Port

In puts fo r Clocks

and Data

Inpu ts for DSD

Data an d Clock

CS8414

Digital Aud io

Interfa ce

JUL ‘03

DS568 DB1

Summary of content (18 pages)

PAGE 1
CDB4398 Evaluation Board for CS4398 Features Description Demonstrates recommended layout and grounding arrangements CS8414 receives S/PDIF, & EIAJ-340 compatible digital audio Headers for external audio input for either PCM or DSD Requires only a digital signal source and power supplies for a complete Digital-toAnalog-Converter system The CDB4398 evaluation board is an excellent means for quickly evaluating the CS4398 24-bit, high performance stereo D/A converter.
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CDB4398 TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. CS4398 DIGITAL TO ANALOG CONVERTER ........................................................................ 3 CS8414 DIGITAL AUDIO RECEIVER ...................................................................................... 3 INPUT/OUTPUT FOR CLOCKS AND DATA ........................................................................... 3 POWER SUPPLY CIRCUITRY ...............................................................................................
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CDB4398 CDB4398 SYSTEM OVERVIEW The CDB4398 evaluation board is an excellent means of quickly evaluating the CS4398. The CS8414 digital audio interface receiver provides an easy interface to digital audio signal sources including the majority of digital audio test equipment. The evaluation board also allows the user to supply either PCM or DSD clocks and data through headers for system development. The CDB4398 schematic has been partitioned into 7 schematics shown in Figures 2 through 8.
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CDB4398 6. CONTROL PORT SOFTWARE The CDB4398 is shipped with Windows 95/98/ME based software as well as Windows NT/2000/XP drivers for interfacing with the CS4398 control port via the DB25 connector, J21. The software can be used to communicate with the CS4398 in either SPI or I2C mode. See the readme.txt for more information. 7. DSD OPERATION The CDB4398 supports Direct Stream Digital (DSD) operation through the header for external clocks and data, J14.
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CDB4398 JUMPER / SWITCH PURPOSE POSITION S/C FUNCTION SELECTED J3 Selects source of voltage for the VLC supplies VLC *+5V Voltage source is VLC binding post Voltage source is +5V binding post J4 Selects source of voltage for the VLS supplies VLS *+5V Voltage source is VLS binding post Voltage source is +5V binding post J7 Selects source of voltage for the VD supply *VD +5V Voltage source is VD binding post Voltage source is +5V binding post J11 Clock Source Select *CS8414 External CS841
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Figure 4 PCM Inputs CS4398 Figure 2 Power Figure 8 Figure 1.
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Figure 2.
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Figure 3.
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CDB4398 Figure 4.
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Figure 5.
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Figure 6.
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Figure 7.
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Figure 8.
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CDB4398 Figure 9.
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CDB4398 Figure 10.
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CDB4398 Figure 11.
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CDB4398 Notes: 17
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CDB4398 18