ADAU1966WBSTZRL

16通道高性能 16-Channel High Performance

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

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Automotive audio systems

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Home theater systems

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Digital audio effects processors

### Features and Benefits

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118 dB DAC dynamic range and SNR

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−98 dB THD + N

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Differential voltage DAC output

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2.5 V digital, 5 V analog and 3.3 V or 5 V I/O supplies

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521 mW total 32.6 mW/channel quiescent power

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PLL generated or direct MCLK master clock

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Low EMI design

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Linear regulator driver to generate digital supply

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Supports 24-bit and 32 kHz to 192 kHz sample rates

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Low propagation 192 kHz sample rate mode

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Log volume control with autoramp function

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Temperature sensor with digital readout ±3°C accuracy

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SPI and I2C controllable for flexibility

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See data sheet for additional features