SigmaDSP audio base evaluation board interfaces with ADAA245X and other A2B MINI boards through a dedicated 100-pin connector. The board combines an ADAU1452 SigmaDSP processor, an ADAU1761 stereo 96 kHz 24-bit audio codec, a MAX4948 switch, dual MAX77504 regulators, an ADM6315 supervisor, and a 512 Kbit I2C EEPROM. Audio interfaces include optical S/PDIF input and output, 3.5 mm stereo ADC input and DAC output jacks, and I2S/TDM breakout headers. Power is supplied from a 12 V barrel jack or wire-to-board terminal, with selectable 3.3 V or 1.8 V IOVDD rails and wakeup-controlled supplies.
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| Board function | SigmaDSP audio base board for A2B MINI evaluation |
| A2B MINI connector | 100pins |
| Supported products | ADAA2455, ADAA2456, ADAA2457 and other 24xx A2B MINI boards |
| DSP processor | ADAU1452 SigmaDSP digital audio processor |
| Audio codec | ADAU1761 stereo low power codec |
| Codec resolution | 24bit |
| Codec maximum sample rate | 96kHz |
| EEPROM | 512Kbit |
| USBi interface protocols | I2C, SPI, OA-SPI |
| Power input | 12VDC |
| Power supply current | 1.6A |
| IOVDD selectable voltages | 3.3 or 1.8V |
| ADAU1452 oscillator frequency | 24.576MHz |
| ADAU1761 local oscillator frequency | 12.288MHz |
| Audio connectors | Optical S/PDIF input/output and 3.5 mm stereo ADC/DAC jacks |
These are design resources that include the Analog Devices ADAA24XX
User manual for the ADAA24XX-EV-B2BX evaluation board, used to validate A2B transceivers and peripherals with SigmaDSP processors and audio codecs.
