Cirrus-logic CDB4244 Bedienungsanleitung

Copyright  Cirrus Logic, Inc. 2011(All Rights Reserved)http://www.cirrus.comCS4244 Evaluation BoardFeatures Multiple Analog Input Filter Options– Ac

10 DS900DB2CDB42442.3 Volume Control TabThe “Volume Control” tab provides high-level control of all volume-related settings for each ADC and DACof the

DS900DB2 11CDB42442.4 Register Maps TabThe “Register Maps” tab provides low-level control over the register-level settings of the CS4244, CS8416,CS840

12 DS900DB2CDB42442.5 Predefined Sample ScriptsThe CDB4244 FlexGUI software comes furnished with four scripts that can quickly configure the board for

DS900DB2 13CDB42443 MASTER CLOCK CONFIGURATIONThe CDB4244 offers many options for generating a system master clock. The master clock can be recovered

14 DS900DB2CDB42443.2 CS2000-Generated Master ClockFor greater flexibility, the CS2000 can be configured to provide a master clock at several differen

DS900DB2 15CDB42444 ANALOG INPUT FILTERSThe CDB4244 makes it possible to realize two different analog input filter options for interfacing with the CS

16 DS900DB2CDB4244Either filter option is realized by populating certain components and removing others. Section 4.3 containsa comprehensive list of c

DS900DB2 17CDB42445 ANALOG OUTPUT FILTERSThe CDB4244 allows the user to evaluate the CS4244 using five different output filter configurations: passive

18 DS900DB2CDB4244Note that there is a phase reversal on the analog audio output connections of the CDB4244 when using anactive output filter; this is

DS900DB2 19CDB42445.2 Analog Output Filter ConfigurationThe following table lists the components that must be present or absent in order to realize ea

2 DS900DB2CDB4244TABLE OF CONTENTS1 SYSTEM OVERVIEW ...

20 DS900DB2CDB42446 SYSTEM CONNECTIONS AND JUMPER PIN BLOCKS6.1 System ConnectionsNotes:3. Connecting to the PC through a USB hub is not recommended.4

DS900DB2 21CDB42447. Silk-screen labels are placed near these connectors to indicate the phase reversal between the active(“A”) and passive (“P”) conf

22 DS900DB2CDB42447 CDB4244 BLOCK DIAGRAMFigure 9. CDB4244 Block DiagramCS4244S/PDIF Input(CS8416)S/PDIF Output(CS8406)Clock Synthesis(CS2000)Osc. Cr

DS900DB2 23CDB42448 CDB4244 SCHEMATICFigure 10. CS4244 (Schematic Sheet 1)

24 DS900DB2CDB4244Figure 11. S/PDIF I/O (Schematic Sheet 2)

DS900DB2 25CDB4244Figure 12. USB I/O (Schematic Sheet 3)

26 DS900DB2CDB4244Figure 13. Analog Input Channels 1 & 2 (Schematic Sheet 4)

DS900DB2 27CDB4244Figure 14. Analog Input Channels 3 & 4 (Schematic Sheet 5)

28 DS900DB2CDB4244Figure 15. Analog Output Channels 1 & 2 (Schematic Sheet 6)

DS900DB2 29CDB4244Figure 16. Analog Output Channels 3 & 4 (Schematic Sheet 7)

DS900DB2 3CDB4244Figure 14.Analog Input Channels 3 & 4 (Schematic Sheet 5) ... 27F

30 DS900DB2CDB4244Figure 17. Power (Schematic Sheet 8)

DS900DB2 31CDB42449 CDB4244 LAYOUTFigure 18. Silk Screen

32 DS900DB2CDB4244Figure 19. Top Side (Layer 1)

DS900DB2 33CDB4244Figure 20. Ground Plane (Layer 2)

34 DS900DB2CDB4244Figure 21. Power Plane (Layer 3)

DS900DB2 35CDB4244Figure 22. Bottom Side (Layer 4)

36 DS900DB2CDB424410 REVISION HISTORYRevision ChangesDB1 – Initial ReleaseDB2 – Updated “Features” on page 1 to remove list of optional single-ended i

4 DS900DB2CDB42441 SYSTEM OVERVIEWThe CDB4244 platform provides analog and digital interfaces to the CS4244 and allows for external DSP and I²CTMcontr

DS900DB2 5CDB42441.5 CS8416 Digital Audio ReceiverThe CS8416 S/PDIF receiver (Figure 11 on page 24) converts the incoming S/PDIF data stream from theo

6 DS900DB2CDB42441.9 Analog InputsThe CDB4244 can accept single-ended analog input signals through the RCA phono jacks on each channel.An active singl

DS900DB2 7CDB42442 SOFTWARE MODE CONTROLThe CDB4244 can be used with the Microsoft Windows®–based FlexGUI graphical user interface, allowing softwarec

8 DS900DB2CDB42442.1 Board Control TabThe “Board Control” tab provides high-level control of the clocking and data options within the CDB4244. Adescri

DS900DB2 9CDB42442.2 CODEC Control TabThe “CODEC Control” tab provides high-level control of many CS4244 register settings. Status text detailingthe C