AD1937WBSTZ-RL

四个ADC / DAC的八带PLL ， 192千赫， 24位编解码器 Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec

Product Details

The AD1937 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 I2C® port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1937 operates from 3.3 V digital and analog supplies. The AD1937 is available in a 64-lead differential output LQFP.

The AD1937 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 frame clock or from an external crystal, the AD1937 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 architecture to further minimize EMI. By using 3.3 V supplies, power consumption is minimized and further reduces emissions.

**Applications**

* Automotive audio systems

* Home theater systems

* Set-top boxes

* Digital audio effects processors

Data Sheet, Rev. 0, 9/08

### Features and Benefits

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PLL-generated or direct master clock

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Low EMI design

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112 dB DAC/ 107 dB ADC Dynamic Range and SNR

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-96 dB THD+N

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Single 3.3 V 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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See Data Sheet for Additional Information

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