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Blackfin Audio EZ-Extender ® ® Manual Revision 2.1, May 2007 Part Number 82-000195-01 Analog Devices, Inc. One Technology Way Norwood, Mass. 02062-9106 This datasheet has been downloaded from http://www.digchip.com at this page...
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Analog Devices, Inc. Printed in the USA. Limited Warranty The Blackfin Audio EZ-Extender is warranted against defects in materials and workmanship for a period of one year from the date of purchase from Analog Devices or from an authorized dealer.
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Regulatory Compliance The Blackfin Audio EZ-Extender has been certified to comply with the essential requirements of the European EMC directive 89/336/EEC (inclusive 93/68/EEC) and, therefore, carries the “CE” mark. The Blackfin Audio EZ-Extender had been appended to Analog Devices Development Tools Technical Construction File referenced “DSPTOOLS1”...
Notation Conventions ..............xiii AUDIO EZ-EXTENDER INTERFACES Audio EZ-Extender Setup ............. 1-1 Analog Audio Interface ..............1-2 Digital Audio Interface ..............1-4 AUDIO EZ-EXTENDER HARDWARE REFERENCE System Architecture ..............2-2 Configuration Jumpers and Switches ..........2-4 Blackfin Audio EZ-Extender Manual...
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ADAV801–Digital Audio .............. B-5 AD1938–Analog Audio ..............B-6 Analog In 1 .................. B-7 Analog In 2 .................. B-8 Analog In 3 .................. B-9 Analog In 4 ................B-10 Analog Out 1 ................B-11 Analog Out 2 ................B-12 INDEX Blackfin Audio EZ-Extender Manual...
To learn more about Analog Devices development software, go to http://www.analog.com/processors/tools/ Product Overview The Blackfin Audio EZ-Extender is a separately sold daughter board that plugs onto the expansion interface of the ADSP-BF533, ADSP-BF537, or ADSP-BF561 EZ-KIT Lite evaluation system. The daughter board aids the design and prototyping phases of ADSP-BF533, ADSP-BF537, and ADSP-BF561 processor targeted applications.
Purpose of This Manual The Blackfin Audio EZ-Extender Manual describes the operation and con- figuration of the components on the extension board. A schematic and a bill of materials are provided as a reference for future Blackfin processor board designs. viii...
Preface Intended Audience This manual is a user’s guide and reference to the Blackfin Audio EZ-Extender. Programmers who are familiar with the Analog Devices Blackfin processor architecture, operation, and development tools are the primary audience for this manual. Programmers who are unfamiliar with VisualDSP++ or EZ-KIT Lite eval-...
What’s New in This Manual What’s New in This Manual This Blackfin Audio EZ-Extender Manual has been updated for the latest revision of VisualDSP++. Technical or Customer Support You can reach Analog Devices, Inc. Customer Support in the following ways: •...
Preface Supported Products The Blackfin Audio EZ-Extender is designed as an extension board to the ADSP-BF533, ADSP-BF537, and ADSP-BF561 EZ-KIT Lite evaluation systems. Product Information You can obtain product information from the Analog Devices Web site, from the product CD-ROM, or from the printed publications (manuals).
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• ADSP-BF537 Blackfin Processor Hardware Reference • ASP-BF561 Blackfin Processor Hardware Reference Blackfin Processor Instruction Set Reference Description of all allowed processor assembly instructions. Table 2. Related VisualDSP++ Publications Title Description • ADSP-BF533 EZ-KIT Lite Evaluation Sys-...
Commands, directives, keywords, and feature names are in text with SECTION font. letter gothic Non-keyword placeholders appear in text with italic style format. filename Blackfin Audio EZ-Extender Manual xiii...
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In the online version of this book, the word Warning appears instead of this symbol. Additional conventions, which apply only to specific chapters, may appear throughout this document. Blackfin Audio EZ-Extender Manual...
For detailed information, refer “Audio EZ-Extender Schematic” on page B-1. 3. Refer to the readme text files in the subdirectories of the …\Blackfin\Examples\Audio EZ-EXTENDER VisualDSP++ installation directory for information on how to con- Blackfin Audio EZ-Extender Manual...
16 input channels and eight of the 16 output channels. The number of channels can be set up in the control registers and is dependant on the sample rate. As the sample rate increases, the number of possible channels decreases. Blackfin Audio EZ-Extender Manual...
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. The divided clocks are necessary when a SYSCLK1 sample rate less than 32 kHz is required. Otherwise, a signal clock fre- quency at the pin of the AD1938 can generate the 48 kHz, 96 kHz, MCLK or 192 kHz sample rate. Blackfin Audio EZ-Extender Manual...
An external 27 MHz oscillator is used as a clock source for the PLLs. The external clocks, which also go to the AD1938 codecs, are generated from the PLLs. Blackfin Audio EZ-Extender Manual...
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Example programs demonstrating the capabilities of the digital audio interface are included in the in the subdirectories of the Visu- …\Blackfin\Examples\Audio EZ-EXTENDER alDSP++ installation directory. For more information about the ADAV801 codecs, go to and search for http://www.analog.com ADAV801 Blackfin Audio EZ-Extender Manual...
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Digital Audio Interface Blackfin Audio EZ-Extender Manual...
2 AUDIO EZ-EXTENDER HARDWARE REFERENCE This chapter describes the hardware design of the Blackfin Audio EZ-Extender. The following topics are covered. • “System Architecture” on page 2-2 Describes the configuration of the daughter board and explains how the board components interface with the processor and EZ-KIT Lite.
A jumper setting allows the routing of the processor’s SPORTs to be swapped with the SPORTs of the analog and digital interfaces. If the SPORT on the mother board is already in use, this feature allows either of Blackfin Audio EZ-Extender Manual...
EZ-KIT Lite to another set of expansion interface connectors. This allows other EZ-Extender boards to be attached to the Audio EZ-Extender. Configuration Jumpers and Switches Before using the Blackfin Audio EZ-Extender, follow the steps in “Audio EZ-Extender Setup” on page 1-1.
Figure 2-2. Jumper Locations ADSP-BF537 EZ-KIT Lite Select Jumper (JP1.1/2) When interfacing the Audio EZ-Extender with the ADSP-BF537 EZ-KIT Lite, insert the jumper to route the ADSP-BF537 EZ-KIT Lite JP1.1/2 SPI select signals to the corresponding codec. Blackfin Audio EZ-Extender Manual...
JP2.3/4 MCLK ADAV801 codec’s pin divided by 4 and 2, respectively. These SYSCLK1 positions can be used to supply the AD1938 codec with lower master clock frequencies to reach the lower sample rates. For more information Blackfin Audio EZ-Extender Manual...
SW1.2 AIN1_R SW2.1 AIN2_L SW2.2 AIN2_R SW3.1 AIN3_L SW3.2 AIN3_R SW4.1 AIN4_L SW4.2 AIN4_R When the switch is , the gain is set to . When the switch is 1/(1.5) the gain is set to 1/(2.12) Blackfin Audio EZ-Extender Manual...
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Configuration Jumpers and Switches Blackfin Audio EZ-Extender Manual...
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A AUDIO EZ-EXTENDER BILL OF MATERIALS The bill of materials corresponds to “Audio EZ-Extender Schematic” on page B-1. Please check the latest schematics on the Analog Devices web- site: http://www.analog.com/Processors/Processors/DevelopmentTools/tec hnicalLibrary/manuals/DevToolsIndex.html#Evalua- tion%20Kit%20Manuals Ref. Qty. Description Reference Designator Manufacturer Part Number...
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Blackfin Audio EZ-Extender Schematic SPDIF_IN SPDIF_OUT ANALOG_OUT ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD ANALOG_OUT RIGHT = RED BLACKFIN AUDIO EZ-EXTENDER Title LEFT = WHITE TITLE Size Board No. A0195-2005 1.2C Date 5-23-2007_11:47 Sheet...
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0.1UF 0.1UF 0.1UF 0.1UF 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 BLACKFIN AUDIO EZ-EXTENDER Title 74LVC74 AD1938 - ANALOG AUDIO AD1938 A AD1938 B Size Board No. A0195-2005 1.2C AGND AGND Date 5-23-2007_11:47 Sheet...
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TSSOP14 ANALOG INPUT SIGNAL SPECS CAN BE FOUND IN THE MANUAL A5V_AMP ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD C197 0.1UF BLACKFIN AUDIO EZ-EXTENDER Title 0603 ANALOG IN 1 Size Board No. A0195-2005 1.2C AGND Date 5-23-2007_11:47...
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TSSOP14 ANALOG INPUT SIGNAL SPECS CAN BE FOUND IN THE MANUAL A5V_AMP ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD C177 0.1UF BLACKFIN AUDIO EZ-EXTENDER Title 0603 ANALOG IN 2 Size Board No. A0195-2005 1.2C AGND Date 5-23-2007_11:47...
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TSSOP14 ANALOG INPUT SIGNAL SPECS CAN BE FOUND IN THE MANUAL A5V_AMP ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD C157 0.1UF BLACKFIN AUDIO EZ-EXTENDER Title 0603 ANALOG IN 3 Size Board No. A0195-2005 1.2C AGND Date 5-23-2007_11:47...
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TSSOP14 ANALOG INPUT SIGNAL SPECS CAN BE FOUND IN THE MANUAL A5V_AMP ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD C141 0.1UF BLACKFIN AUDIO EZ-EXTENDER Title 0603 ANALOG IN 4 Size Board No. A0195-2005 1.2C AGND Date 5-23-2007_11:47...
ANALOG OUTPUT SIGNAL SPECS CAN BE FOUND IN THE MANUAL AGND AGND A5V_AMP A5V_AMP ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD C209 C210 0.1UF 0.1UF BLACKFIN AUDIO EZ-EXTENDER Title 0603 0603 ANALOG OUT 1 Size Board No. A0195-2005 1.2C AGND AGND Date 5-23-2007_11:47 Sheet...
ANALOG OUTPUT SIGNAL SPECS CAN BE FOUND IN THE MANUAL AGND AGND A5V_AMP A5V_AMP ANALOG 20 Cotton Road Nashua, NH 03063 DEVICES PH: 1-800-ANALOGD C129 C128 0.1UF 0.1UF BLACKFIN AUDIO EZ-EXTENDER Title 0603 0603 ANALOG OUT 2 Size Board No. A0195-2005 1.2C AGND AGND Date 5-23-2007_11:47 Sheet...
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