Cirrus Logic CDB5381 User Manual
Features, Description
1
Copyright
Cirrus Logic, Inc. 2003
(All Rights Reserved)
Cirrus Logic, Inc.
www.cirrus.com
CDB5381
Evaluation Board for CS5381
Features
Demonstrates recommended layout and
grounding arrangements
CS8406 generates S/PDIF, and EIAJ-340
compatible digital audio
Requires only an analog signal source and
power supplies for a complete Analog-to-
Digital-Converter system
Description
The CDB5381 evaluation board is an excellent means
for quickly evaluating the CS5381 24-bit, stereo A/D con-
verter. Evaluation requires a digital signal analyzer, an
analog signal source, and a power supply.
Also included is a CS8406 digital audio interface trans-
mitter
which
generates
S/PDIF,
and
EIAJ-340
compatible audio data. The digital audio data is available
via RCA phono and optical connectors.
ORDERING INFORMATION
CDB5381
Evaluation Board
CS5381
CS8406
AES/EBU
I/O FOR
CLOCKS
AND DATA
ANALOG
INPUT
S/PDIF
S/PDIF
TRANSMITTER
OUTPUT
FEB ‘03
DS563DB1
Document Outline
- CDB5381
- Features
- Description
- 1. CDB5381 System Overview
- 2. CS8406 Digital Audio Transmitter
- 3. Input/Output for Clocks and Data
- 4. Power Supply Circuitry
- 5. Grounding and Power Supply Decoupling
- 6. Analog Input Filter
- Figure 1. System Block Diagram and Signal Flow
- Figure 2. Differential Analog Audio Input
- Figure 3. CS5381
- Figure 4. Level Shifters
- Figure 5. I/O for Clocks/Data
- Figure 6. CS8406 Digital Audio Interface
- Figure 7. Reset Circuit
- Figure 8. Power Circuit
- Figure 9. Top Layer Silkscreen
- Figure 10. Top Layer
- Figure 11. Bottom Layer