Owner's manual

ManualsBrandsCirrus Logic ManualsHardwareCDB4382

Preliminary Product Information

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.cirrus.com

CDB4382

Evaluation Board for CS4382

Features

! Demonstrates recommended layout and

grounding arrangements

! CS8414 receives S/PDIF, & EIAJ-340

compatible digital audio

! Headers for external audio input for either

PCMorDSD

! Requires only a digital signal source and

power supplies for a complete Digital-to-

Analog-Converter system

Description

The CDB4382 evaluation board is an excellent means

for quickly evaluating the CS4382 24-bit, eight channel

D/A converter. Evaluation requires an analog signal an-

alyzer, a digital signal source, a PC for controlling the

CS4382 (for control port mode only) and a power supply.

Analog line level outputs are provided via RCA phono

jacks.

The CS8414 digital 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 INFORMATION

CDB4382 Evaluation Board

CS4382

Analog

Outputs

MUTE

Control

Port

Inputs for Clocks

and Data

Inputs for DSD

Data and Clock

CS8414

Digital Audio

Interface

SEPT ‘01

DS514DB2

Summary of content (20 pages)

PAGE 1
CDB4382 Evaluation Board for CS4382 Features Description ! Demonstrates The CDB4382 evaluation board is an excellent means for quickly evaluating the CS4382 24-bit, eight channel D/A converter. Evaluation requires an analog signal analyzer, a digital signal source, a PC for controlling the CS4382 (for control port mode only) and a power supply. Analog line level outputs are provided via RCA phono jacks.
PAGE 2
CDB4382 TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. CS4382 DIGITAL TO ANALOG CONVERTER ......................................................................... 3 CS8414 DIGITAL AUDIO RECEIVER ....................................................................................... 3 INPUT/OUTPUT FOR CLOCKS AND DATA ............................................................................ 3 POWER SUPPLY CIRCUITRY ............................................................................................
PAGE 3
CDB4382 CDB4382 SYSTEM OVERVIEW The CDB4382 evaluation board is an excellent means of quickly evaluating the CS4382. 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 CDB4382 schematic has been partitioned into 10 schematics shown in Figures 3 through 12.
PAGE 4
CDB4382 in either SPI or I2C mode; however, in SPI mode the CS4382 registers are write-only. 7. DSD OPERATION The CDB4382 supports Direct Stream Digital (DSD) operation through the header for external clocks and data, J16. The CS4382 must be placed into the DSD mode and headers J6 and J14 must be set accordingly. See Table 2 for more information. 8. ANALOG OUTPUT FILTER The analog output filter on the CDB4382 has been designed to add flexibility when evaluating the CS4382.
PAGE 5
CDB4382 9. ERRATA been placed according to the schematic and not the silkscreen CDB4382 Revision B.0 CDB4382 Revision C.0 The CDB4382 revision B.0 has the following errata. The silk-screens for Z4 and Z5 are reversed. The cathode band marks on the silkscreen are facing the wrong direction. The zener devices have JUMPER / SWITCH The CDB4382 revision C.0 has no errata at the time of this publication.
PAGE 6
Control Port Figure 7 Reset Circuit CS4382 Figure 3 Channels 2A & 2B Outputs and Mute Figure 9 Channels 3A & 3B Outputs and Mute Figure 10 Channels 4A & 4B Outputs and Mute Figure 11 PCM Inputs Figure 5 SCLK2 LRCK2 DSD1A DSD1B DSD2A DSD2B DSD3A DSD3B DSD4A DSD4B DSD_CLK 8414 Digital Audio Receiver Figure 4 MCLK SCLK1 LRCK1 SDATA1 SDATA2 SDATA3 SDATA4 Channels 1A & 1B Outputs and Mute Figure 8 DSD Inputs Figure 6 CDB4382 Figure 2.
PAGE 7
CDB4382 Figure 3.
PAGE 8
CDB4382 Figure 4.
PAGE 9
CDB4382 Figure 5.
PAGE 10
CDB4382 Figure 6.
PAGE 11
CDB4382 Figure 7.
PAGE 12
CDB4382 Figure 8.
PAGE 13
CDB4382 Figure 9.
PAGE 14
CDB4382 Figure 10.
PAGE 15
CDB4382 Figure 11.
PAGE 16
CDB4382 Figure 12.
PAGE 17
CDB4382 Figure 13.
PAGE 18
CDB4382 Figure 14.
PAGE 19
CDB4382 Figure 15.
PAGE 20