AD1938WBSTZ-RL

4 ADC / DAC 8与PLL ， 192千赫， 24位编解码器 4 ADC/8 DAC with PLL, 192 kHz, 24-Bit Codec

Product Details

Linux Driver

The AD1938 is a high performance, single-chip codec that provides four analog-to-digital converters ADCs with input and 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 AD1938 operates from 3.3 V digital and analog supplies. The AD1938 is available in a 48-lead single-ended output LQFP package. Other members of this family include a differential DAC output and I2C® control port version.

The AD1938 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 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 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**

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Automotive audio systems

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Home Theater Systems

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Set-top boxes

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Digital audio effects processors

### Features and Benefits

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PLL generated or direct master clock

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Low EMI design

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108 dB DAC/107 dB ADC dynamic range and SNR

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−94 dB THD + N

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Linux Driver

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3.3 V single supply

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Tolerance for 5 V logic inputs

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Supports 24 bits and 8 kHz to 192 kHz sample rates

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Please see data sheet for additional features