CDB4344 Cirrus Logic Inc, CDB4344 Datasheet

BOARD EVAL FOR CS4344 DAC

CDB4344

Manufacturer Part Number
CDB4344
Description
BOARD EVAL FOR CS4344 DAC
Manufacturer
Cirrus Logic Inc
Series
Popguard®r
Datasheets

Specifications of CDB4344

Number Of Dac's
2
Number Of Bits
24
Outputs And Type
2, Single Ended
Sampling Rate (per Second)
192k
Data Interface
Serial
Dac Type
Voltage
Voltage Supply Source
Analog and Digital
Operating Temperature
-10°C ~ 85°C
Utilized Ic / Part
CS4344
Description/function
Audio D/A
Operating Supply Voltage
5 V
Product
Audio Modules
For Use With/related Products
CS4344
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
598-1006
Features
http://www.cirrus.com
Demonstrates recommended layout and
grounding arrangements
CS8416 receives S/PDIF, & EIAJ-340
compatible digital audio
Header for external PCM audio
Requires only a digital signal source and
power supplies for a complete Digital-to-
Analog-Converter system
Inputs for Clocks
Digital Audio
and Data
Interface
CS8416
Evaluation Board for CS4344
Copyright © Cirrus Logic, Inc. 2004
(All Rights Reserved)
Description
The CDB4344 evaluation board is an excellent means
for quickly evaluating the CS4344 24-bit, 10 pin stereo
D/A converter. Evaluation requires an analog signal an-
alyzer, a digital signal source, and a power supply.
Analog line level outputs are provided via RCA phono
jacks.
The CS8416 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
development.
ORDERING INFORMATION
CS4344
CDB4344
in
a
user
application
Evaluation Board
Analog Outputs
CDB4344
during
DS613DB2
June ‘04
system
1

Related parts for CDB4344

CDB4344 Summary of contents

Page 1

... Digital Audio Interface http://www.cirrus.com Description The CDB4344 evaluation board is an excellent means for quickly evaluating the CS4344 24-bit, 10 pin stereo D/A converter. Evaluation requires an analog signal an- alyzer, a digital signal source, and a power supply. Analog line level outputs are provided via RCA phono jacks ...

Page 2

... ANALOG OUTPUT FILTERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7. ERRATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 LIST OF FIGURES Figure 1. System Block Diagram and Signal Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. CS4344 and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 3. CS8416 S/PDIF Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 4. PCM Input Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 5. Power Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 6. Silkscreen Top Figure 7. Top Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 8. Bottom Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2 CDB4344 DS613DB2 ...

Page 3

... The evaluation board also allows the user to supply external PCM clocks and data through a header for system development. The CDB4344 schematic has been partitioned into 4 schematics shown in Figures 2 through 5. Each partitioned schematic is represented in the system diagram shown in Figure 1. Notice that the system diagram also includes the interconnections between the partitioned schematics ...

Page 4

... ANALOG OUTPUT FILTERING The analog output on the CDB4344 has been designed according to the CS4344 datasheet. This output circuit includes an AC coupling cap and a single pole R and C. An additional load resis- tance may be added by stuffing R10 and R26 to test the CS4344’s load driving capability. ...

Page 5

... The CS8416 must be reset if switch S2 is left Sets clock source for CS4344 (open=J9, *closed right Selects 128x (open) or 256x (*closed) MCLK/LRCK ratio output for CS8416 Table 2. CDB4344 Jumper Settings CDB4344 FUNCTION SELECTED Voltage source is a +3.3V regulator Voltage source is +5V binding post result get current in Amps ...

Page 6

... CDB4344 DS613DB2 ...

Page 7

... DS613DB2 Figure 2. CS4344 and outputs CDB4344 7 ...

Page 8

... CDB4344 DS613DB2 ...

Page 9

... DS613DB2 CDB4344 9 ...

Page 10

... CDB4344 DS613DB2 ...

Page 11

... DS613DB2 Figure 6. Silkscreen Top CDB4344 11 ...

Page 12

... Figure 7. Top Side CDB4344 DS613DB2 ...

Page 13

... DS613DB2 Figure 8. Bottom Side CDB4344 13 ...

Page 14

... Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trade- marks or service marks of their respective owners. 14 REVISION HISTORY Changes Initial Release Changed C29 in Figure 2 on page 7 from 3 µF to improve popguard performance CDB4344 DS613DB2 ...

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