AD1938WBSTZ-RL
数据手册.pdf4 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