Product Details
●The ADAU1966 is a high performance, single-chip DAC that provides 16 digital-to-analog converters (DACs) with differential output using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. An SPI/I2 C port is included, allowing a microcontroller to adjust volume and many other parameters. The ADAU1966 operates from 2.5 V digital, 5 V analog and 3.3 V or 5 V input/output supplies. A linear regulator is included to generate the digital supply voltage from the analog supply voltage. The ADAU1966 is available in an 80-lead LQFP package.
●The ADAU1966 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive the internal master clock from an external LRCLK, the ADAU1966 can eliminate the need for a separate high frequency master clock and can be used with or without a bit clock. The DACs are designed using the latest Analog Devices continuous time architectures to further minimize EMI. By using 2.5 V digital supplies, power consumption is minimized, and the digital waveforms are a smaller amplitude, further reducing emissions.
●Applications
● Automotive audio systems
● Home theater systems
● Digital audio effects processors
●### Features and Benefits
● 118 dB DAC dynamic range and SNR
● −98 dB THD + N
● Differential voltage DAC output
● 2.5 V digital, 5 V analog and 3.3 V or 5 V I/O supplies
● 521 mW total (32.6 mW/channel) quiescent power
● PLL generated or direct MCLK master clock
● Low EMI design
● Linear regulator driver to generate digital supply
● Supports 24-bit and 32 kHz to 192 kHz sample rates
● Low propagation 192 kHz sample rate mode
● Log volume control with autoramp function
● Temperature sensor with digital readout ±3°C accuracy
● SPI and I2C controllable for flexibility
● See data sheet for additional features
