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ATSAM9703 Datasheet(PDF) 2 Page - ATMEL Corporation |
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ATSAM9703 Datasheet(HTML) 2 Page - ATMEL Corporation |
2 / 16 page 2 ATSAM9703 1710C–DRMSD–12/02 ATSAM9703 Configuration The firmware can also be modified to fit customer specifications. An ATSAM9703-based development/prototyping board is available and includes the ATSAM9703, 32 Mbits of EPROM memory, 32K words of SRAM, a codec and one DAC, providing four channels of audio Out and a stereo line input (ref. 9703DVB). The ATSAM9703 internal sound definition format is compatible with the ATSAM9407 sound studio IC. Therefore it is possible to develop specific sounds for the ATSAM9703 by using the development tools of the ATSAM9407. The ATSAM9703 operates from a “low” frequency 9.6 MHz typical crystal. A built-in PLL raises this frequency to a 38.4 MHz internal clock which controls the two processors. Care has been taken that Output pin signals change only when necessary. This mini- mizes RFI (radio frequency interferences) and power consumption. Minimizing RFI is mostly important in order to comply with standards such as FCC, CSA and CE. The core power supply for the ATSAM9703 should be 3.3V ± 10%, while the periphery supports supply from 3V to 5.5V (5V ± 10% for TTL-compatible applications). Therefore, by selecting 3.3V ROM, SRAM and DAC, it is possible to develop low-power/low-volt- age portable applications. Figure 1. Typical Hardware Configuration ATSAM9703 CODEC MIDI IN Audio Out Microphone Microphone CleanWave ROM RAM |
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