Features

– Keyboard Velocity Scanner (up to 264 keys, 64 µs Time Accuracy, Log Time Scale)

– Switches Scanner (up to 176 switches)

– LED Display Controller (up to 88 LEDs)

– Sliders Scanner (Built-in ADC, up to 16 Sliders)

– LCD Display (8-bit Interface)

– 49 MHz Built-in 16-bit Microcontroller

– Interface with Keyboard/Switches through Built-in Shared Memory

– 64-slot Digital Sound Synthesizer/Processor

– Multi-algorithm: PCM with Dynamic LP Filter, FM, Delay Lines for Effects,

Equalizer, Surround, Digital Audio-in Processing, etc.

– Compatible with ATSAM97XX Sounds and Firmware.

– 48 kHz Sampling Rate

– Up to 32 Mega x 16 ROM/RAM for FIrmware, Orchestrations and PCM Data

– Up to 4 Channels Audio-out, 2 Channels Audio-in

– 128-lead LQFP Space-saving Package

– Single 12.2880 MHz Crystal Operation, Built-in Pll Minimizes RFI

– CleanWave 1-Mbyte and 4-Mbyte Sample Sets (Free License)

– High Quality Piano & Strings 2-Mbyte Sample Set

– Other Sample Sets Available Under Special Licensing Conditions

– Enhanced P16 Processor with C Compiler

– Proven Reliable Synthesis Drivers

– In-circuit Emulation with SamVS-C Debugger for Easy Prototype Development

– Built-in External Flash Programming Algorithm, Allows Onboard Flash

Programming.

– All Existing ATSAM97xx and ATSAMA2xxx Tools Available for Sound and

Soundbank Development

1.

Description

The ATSAM2553 integrates into a single chip a SAM core (64-slots DSP + 16-bit pro-

cessor), a 32K x 16 RAM, an LCD display interface and a scanner allowing direct

connection to velocity sensitive keyboards, switches, LEDs and sliders. With addition

of a single external ROM or Flash and a stereo DAC, a complete low cost musical

instrument can be built, including reverb and chorus effects, parametric equalizer, sur-

round effects, orchestrations, pitch bend, wheel controller, without compromising on

sound quality. The ATSAM2553 is housed in a standard 128-lead LQFP package.

Sound

Synthesis

ATSAM2553

Integrated

Digital Musical

Instrument

6399A–DRMSD–13-Oct-08