Description

Features

Block Diagram

Mic daughterboard

ETA-A5410

Description

Our signal acquisition systems convert the form of signals from analog to digital and from digital to analog, communicate with a host, and perform digital signal processing by the internal DSP. 

Code development for the internal DSP is by downloading via the USB, or by using the JTAG header to access the on-chip facilities. Interaction through the JTAG header is accomplished by our emulators.

Our AUDIO4-5410 has four signal channels for bi-direction conversion. It utilizes the Texas Instruments TMS320VC5410 digital signal processor to do the internal digital processing, and conduct communication with a host via the USB at 12 MHz.

Program code for the TMS320VC5410 is stored in flash Rom. Power is from the USB. The four signal channels have their Analog to Digital and Digital to Analog conversions implemented with two of the Crystal Semiconductor CS4218 audio bandwidth Codecs from Cirrus Logic.

The CODEC resolution is 16-bits in both conversion directions. The user selectable conversion rate is selectable from 8 kHz to 48 kHz. 

Back to Top

Operating code to the internal DSP can be provided by two means. One is to bring it in via the USB connection; the other is to use the JTAG header that gives access to the on-chip facilities. 

Our emulators can be used to accesses the on-chip facilities. 

In developing code for the internal TMS320VC5410 DSP, our AUDIO4-5410 has the option to connect with our SB-USB emulator for code debugging.Our AUDIO4-5410 system comes with sample audio applications and user libraries which allow for full control of the TMS320VC5410 processor.

Software for the internal TMS320VC5410 DSP is generated and debugged with the Texas Instruments Code Composer Studio development software. 

When using the Code Composer Studio development software, our provided driver allows access to the DSP in the monitor mode.

Primary applications are in the fields of acoustic and audio measurement and analysis, speech processing, vibration measurement and analysis, 3-D sound, signal synthesis, and applications requiring portable field based data acquisition and measurement. 

Features

DSP-based data acquisition system

• TMS320VC5410 running at 100 MHz
• 16-bit, fixed point digital signal processor
• External flash ROM - 128K by 16-bits
• High-speed USB Interface with the host (12 MHz)
• Power consumption - 250 mA
• Power supplied from USB
• Small size - 1" x 4" x 2.5"
• Portable

Analog Section

• Crystal Semi CS4218 audio bandwidth CODEC
• 4 Input + 4 Output audio channels
• 16-bit Analog to Digital conversion
• 16-bit Digital to Analog conversion
• 8 kHz to 48 kHz conversion rate
• Low-noise, high dynamic range analog I/O subsystem

Back to Top

Software

Some amount of the DSP execution time is consumed by the processing involved with communicating over the USB. The remainder of the DSP execution time is available for additional software tasks.

Our AUDIO4-5410 comes with sample audio application software in source and object form. And user libraries, for the PC and DSP, in DLL (object) form. These libraries provide full control of the TMS320VC5410 processor.

Optional software is the Texas Instruments Code Composer Studio real-time debugger

Optional Accessories

• Mic daughterboard with pre-amp and bias for 4 electret microphones
• Quad mic adapter allowing for connection of 4 individual micrphones to two stereo inputs

Block Diagram

Circuitry

Click for enlargement

Back to Top

Microphone daughterboard

Quad Microphone adaptor

Optional microphone daughterboard replaces 4 line level inputs to the Audio4-5410 with four microphone level ones. Board provides additional amplification and also bias voltage required by electret microphones.
Click for enlargement	Click for enlargement

Back to Top

ETA-A5410 Experimental Telephony Adaptor