ADI ADSP-BF526KBCZ-4C2

The ADSP-BF52xC processors add a low power, high quality stereo audio codec for portable digital audio applications with one set of stereo programmable gain amplifier (PGA) line inputs and one monaural microphone input. It features two 24-bit analog-to-digital converter (ADC) channels and two 24-bit digital-to-analog (DAC) converter channels. The codec can operate as a master or a slave. It supports various master clock frequencies, including 12 MHz or 24 MHz for USB devices; standard 256×fS or 384×fS based rates, such as 12.288 MHz and 24.576 MHz; and many common audio sampling rates, such as 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz, 16 kHz, 12 kHz, 11.025 kHz, and 8 kHz. The codec can operate at power supplies as low as 1.8 V for the analog circuitry and as low as 1.8 V for the digital circuitry. The maximum voltage supply is 3.6 V for all supplies. The codec software-programmable stereo output options provide the programmer with many application possibilities because the device can be used as a headphone driver or as a speaker driver.

• 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
• Accepts a wide range of supply voltages for internal and I/O operations
• Programmable on-chip voltage regulator (ADSP-BF523/ ADSP-BF525/ADSP-BF527 processors only)
• Embedded low power audio codec
• 289-ball (12 mm×12 mm) CSP_BGA package
• 132K bytes of on-chip memory
• External memory controller with glueless support for SDRAM and asynchronous 8-bit and 16-bit memories
• Flexible booting options from external flash, SPI and TWI memory or from host devices including SPI, TWI, and UART
• Code security with Lockbox Secure Technology one-time-programmable (OTP) memory
• Memory management unit providing memory protection
• 2 dual-channel memory DMA controllers
• Stereo, 24-bit ADCs and DACs
• DAC SNR: 100 dB (A-weighted), THD: –80 dB at 48 kHz, 3.3 V
• ADC SNR: 90 dB (A-weighted), THD: –80 dB at 48 kHz, 3.3 V
• Highly efficient headphone amplifier
• Stereo line input and monaural microphone input
• Low power 7 mW stereo playback (1.8 V supply) 14 mW record and playback (1.8 V supply)
• Low supply voltages Analog: 1.8 V to 3.6 V Digital core: 1.8 V min Digital I/O: 1.8 V to 3.6 V
• 256×fS/384×fS oversampling rate in normal mode; 250×fS/272×fS oversampling rate in USB mode
• Audio sampling rates: 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz