●Product Details
●The ADAU1966A is a high performance, single-chip digital-to-analog converter (DAC) that provides 16 DACs with differential or single-ended outputs using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. A serial peripheral interface (SPI)/I2C port is included, allowing a microcontroller to adjust volume and many other parameters. The ADAU1966A operates from 2.5 V digital and 3.3 V analog supplies. A linear regulator is included to generate the digital supply voltage from the analog supply voltage. The ADAU1966A is available in an 80-lead LQFP.
●The ADAU1966A 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 left-right frame clock (LRCLK), the ADAU1966A 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.
●Note that throughout this data sheet, multifunction pins, such as SCLK/SCL, are referred to by the entire pin name or by a single function of the pin, for example, SCLK, when only that function is relevant.
●APPLICATIONS
● Automotive audio systems
● Home theater systems
● Digital audio effects processors
●### Features and Benefits
● Differential or single-ended voltage DAC output
● 114 dB DAC dynamic range,
●A-weighted, differential
● −97 dB total harmonic distortion plus noise (THD + N), differential
● 110 dB DAC dynamic range,
●A-weighted, single-ended
● −95 dB THD + N, single-ended
● 2.5 V digital and 3.3 V analog and input/output (I/O) supplies
● 299 mW total quiescent power
● Phase-locked loop (PLL) generated or direct master clock MCLK
● Low electromagnetic interference (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
● See datasheet for additional features
