Product Details
●The AD1934 is a high performance, single chip that provides eight digital-to-analog converters (DACs) with single-ended output using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1934 operates from 3.3 V digital and analog supplies. The AD1934 is available in a 48-lead (single-ended output) LQFP. Other members of this family include a differential DAC output and I2C® control port version.
●The AD1934 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 master clock from the LR clock or from an external crystal, the AD1934 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs are designed using the latest Analog Devices continuous time architectures to further minimize EMI. By using 3.3 V supplies, power consumption is minimized, further reducing emissions.
●Applications:
● Automotive audio systems
● Home theater systems
● Set-top boxes
● Digital audio effects processors
●### Features and Benefits
● PLL generated or direct master clock
● Low EMI design
● 108 dB DAC dynamic range and SNR
● −94 dB THD + N
● Single 3.3 V supply
● Tolerance for 5 V logic inputs
● Supports 24 bits and 8 kHz to 192 kHz sample rates
● Single-ended DAC output
● Log volume control with autoramp function
● SPI® controllable for flexibility
● Software-controllable clickless mute
● See data sheet for additional features
