AD1939YSTZ Audio CODECs by Analog Devices

Status: Production
Series: AD1939
RoHS: Compliant
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The AD1939 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with differential input, and eight digital-to-analog converters (DACs) with differential 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 AD1939 operates from 3.3 V digital and analog supplies. The AD1939 is available in a 64-lead (differential output) LQFP package.The AD1939 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 AD1939 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs 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.

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Features

PLL generated or direct master clock
Low EMI design
112 dB DAC/107 dB ADC dynamic range and SNR
−94 dB THD + N
Differential ADC input
Single 3.3 V supply
Tolerance for 5 V logic inputs
See datasheet for additional features


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD1939YSTZ?

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What category does AD1939YSTZ fall under?

The AD1939YSTZ is listed under Audio CODECs.

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Is the AD1939YSTZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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