ATSAM3103 Datasheet | Atmel

Features - - - - - - - - - - Three DSPs and 24-bit Audio Router On-chip 32 k Hz to 96 k Hz Sampling Rate 16-bit Microcontroller On-chip Variety of I/Os, including Smart Media™ and Data Flash ® Embedded RAM for Single Chip Operation (530 kbit) Warm Start Power-down 1 µA Typical Deep Power-down, 0.5 m W/MIPS Typical Operating External Flash/ROM Capability Available in a 64-lead TQFP Package Ideal for Real-time Audio Applications - MP3 Decoding Wavetable Synthesis (GM-Lite) - Effect Processing (Reverb, Echo, Chorus, etc.) - Speech Recognition and Synthesis - Filtering, Sampling Rate Conversion - Typical Applications: Cellular Phones, MP3 Player, Effect Devices, Intelligent Answering Machinces, Toys Audio Processing ATSAM3103 Versatile Low-power Audio DSP/ Low-cost Effects DSP Description The ATSAM3103 is a member of the new ATSAM3000 family that uses DSP Array Technology. The ATSAM3103 includes three 24-bit DSPs, a 24-bit Audio Router and a general purpose 16-bit on-chip CISC Microcontroller. Its high performance and flexibility with eight input and eight output channels allow implementation of professional quality audio applications such as effects processing and MP3 decoding. A variety of I/Os, including Smart Media™ and Data Flash® are provided. Sampling rates up to 96 k Hz at 24 bits are supported. 6093A- DRMSD- 25-Oct-04 DSP Array Block Diagram Figure 1. ATSAM3103 DSP Array Block Diagram DSP Array (3 P24 DSPs) Embedded RAM 16K x 24 Sync Bus Async Bus 16-bit Processor (P16) I/Os Timers, UARTs, Data Flash, Ports ROUTER Final ACC MIX Audio OUT Audio IN Audio I/O Embedded ROM 1K x 16 BIOS and Debug External I/O Functional Description DSP Array The ATSAM3103 includes three on-chip DSPs. Each DSP (P24) is built around a 2K x 24 RAM and a 1K x 24 ROM. The RAM contains both data and P24 instructions; the ROM contains typical coefficients such as FFT cosines and windowing. A P24 sends and receives audio samples through the Sync Bus. It can request external data...