
Analog Devices
GENERAL DESCRIPTION
This document describes the differences between the ADSPBF523C/ADSP-BF525C/ADSP-BF527C and the ADSPBF522/ADSP-BF523/ADSP-BF524/ADSP-BF525/ADSPBF526/ADSP-BF527 standard product. Please refer to the published ADSP-BF522/ADSP-BF523/ADSP-BF524/ADSPBF525/ADSP-BF526/ADSP-BF527 Revision PrD datasheet for general description and specifications. This document only describes the exceptions to that datasheet.
PROCESSOR FEATURES
Up to 600 MHz high-performance Blackfin processor
RISC-like register and instruction model for ease of
programming and compiler-friendly support
Advanced debug, trace, and performance monitoring
tbd V to tbd V core VDD with on-chip voltage regulation
1.8 V, 2.5 V, or 3.3 V I/O operation
Embedded low power audio CODEC
289-ball MBGA package
132K bytes of on-chip memory
External memory controller with glueless support for SDRAM
and asynchronous 8-bit and 16-bit memories
Nand flash controller
Flexible booting options from external flash, SPI and TWI
memory or from SPI, TWI, and UART host devices
One-time programmable memory for security
Two dual-channel memory DMA controllers
Memory management unit providing memory protection
See the published ADSP-BF522/ADSP-BF523/
ADSPBF524/ADSP-BF525/ADSP-BF526/ADSP-BF527 Revision
PrD datasheet for additional peripherals
EMBEDDED CODEC FEATURES
Stereo 24-bit A/D and D/A converters
Highly efficient headphone amplifier
Complete stereo/mono or microphone/line interface
Normal and USB modes programmed under software control
Selectable ADC High Pass Filter
TWI or SPI Interface
Programmable Audio Data Interface Modes
I2S, Left, Right Justified or Frame Sync
16-/20-/24-/32-bit Word Lengths
Master or Slave Clocking Mode
Microphone Input and Electret Bias with Side Tone Mixer
Audio sample rates
8 kHz, 44.1 kHz or 88.2 kHz
at XTI/CODEC_MCLK frequency of either 11.2896 MHz
(256 × fS) or 16.9344 MHz (384 × fS)
8 kHz, 32 kHz, 48 kHz or 96 kHz
at XTI/CODEC_MCLK frequency of either 12.288 MHz
(256 × fS) or 18.432 MHz (384 × fS)
DAC
100 dB (A-weighted) signal-to-noise ratio at 3.3 V
95 dB (A-weighted) signal-to-noise ratio at 1.8 V
ADC
90 dB (A-weighted) signal-to-noise ratio at 3.3 V
85 dB (A-weighted) signal-to-noise ratio at 1.8 V
Low power
8 mW stereo playback (1.8 V all power supplies)
20 mW record and playback (1.8 V all power supplies))
Low supply voltages
1.8 V to 3.6 V analog supply range
1.8 V to 3.6 V digital supply range