AD1937WBSTZ

Overview

The AD1937WBSTZ is a high-performance, single-chip audio codec from Analog Devices Inc., featuring four differential analog-to-digital converters (ADCs) and eight differential digital-to-analog converters (DACs). It utilizes a patented multibit sigma-delta architecture to achieve a dynamic range of 107 dB for ADCs and 112 dB for DACs. The device supports sample rates from 8 kHz to 192 kHz with 24-bit resolution and includes an on-chip phase-locked loop (PLL) for clock generation. Operating from a single 3.3 V supply, it offers I²C control, software-controllable mute, and low EMI design characteristics.

Feature Summary

• Integrates four differential ADC inputs and eight differential DAC outputs within a single package.
• Features an internal PLL capable of generating master clocks or accepting direct master clock inputs.
• Includes an I²C control port for flexible configuration of volume, mute, and operational modes.
• Designed with low electromagnetic interference (EMI) architecture using continuous time circuit designs.

Applications

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

Procurement Notes

Verify the specific suffix WBSTZ against official documentation to confirm package type and automotive qualification status. Ensure compatibility with 3.3 V logic levels and I²C interface requirements during integration. Confirm that the differential output configuration matches the target schematic design before procurement.

Selection Notes

Select this component when high channel count and differential signaling are required in a compact form factor. The integrated PLL simplifies clock distribution by eliminating external crystal oscillators in many configurations. Consider the 64-lead LQFP package constraints and thermal dissipation requirements for the final PCB layout.

Part Context

This part belongs to the AD193X family of high-performance audio codecs. It shares architectural similarities with other members like the AD1933 and AD1939 but is distinguished by its specific combination of four ADCs and eight DACs. The device is qualified for automotive applications under the AEC-Q100 standard.

Replacement Considerations

Public confirmed substitute part numbers: AD1937WBSTZ-RL.