Product Details
●The ADAU1962 is a high performance, single chip, digitalto-analog converter (DAC) that provides 12 DACs with differential outputs using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. A SPI/I2C port is included, allowing a microcontroller to adjust volume and many other parameters. The ADAU1962 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 ADAU1962 is designed for low electromagnetic interference (EMI), evident in both the system and circuit design architectures. By using the on-board phase-locked loop (PLL) to derive the internal master clock from an external left right frame clock (LRCLK)/frame clock, the ADAU1962 eliminates 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 of a smaller amplitude, further reducing emissions.
●The ADAU1962 is available in an 80-lead LQFP package. Note that throughout this data sheet, multifunction pins, such as SCLK/SCL/SA, 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
● 118 dB DAC dynamic range
● −98 dB THD + N
● Differential voltage DAC output
● 2.5 V digital, 5 V analog, and 3.3 V or 5 V input/output supplies
● 421 mW total quiescent power dissipation
● PLL generated or direct 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
● See data sheet for additional features
