ADI AD1938WBSTZ-RL

The AD1938 is a high-performance single-chip codec featuring four ADC inputs and eight DAC outputs with single-ended outputs, based on Analog Devices, Inc.'s patented multibit Sigma-Delta architecture. The device includes an SPI port that allows a microcontroller to adjust volume and many other parameters. The AD1938 operates from 3.3V digital and analog supplies. The AD1938 is available in a 48-lead (single-ended output) LQFP package. Other members of the family include versions with differential DAC outputs and an I2C control port. The AD1938 is designed for low EMI. This is reflected in both the system and circuit design architecture. By using an on-chip PLL to derive the master clock from the LR clock or an external crystal, the AD1938 eliminates the need for a separate high-frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs employ Analog Devices' latest continuous-time architecture to further reduce EMI. By using a 3.3V supply, power consumption is minimized, further reducing radiated emissions.

• Automotive audio systems
• Home theater systems
• Set-top boxes
• Digital audio effects processors