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24-Bit Codec with 8 DAC and PLL, 192 KHz

Model: AD1933

  • PLL generated or direct master clock
  • Low EMI design
  • DAC with 110 dB dynamic range and SNR
  • -96 dB THD + N
  • 3.3 V single supply
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The AD1933 is a high performance, single chip that provides eight digital-to-analog converters (DACs) with differential output using patented multibit sigma- delta architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1933 operates from 3.3 V digital and analog supplies. The AD1933 is available in a 64-lead (differential output) LQFP. Other members of this family include a single-ended DAC output and I2C® control port version. The AD1933 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 AD1933 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs 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.
  • PLL generated or direct master clock
  • Low EMI design
  • DAC with 110 dB dynamic range and SNR
  • -96 dB THD + N
  • 3.3 V single supply
  • Tolerance for 5 V logic inputs
  • Supports 24 bits and 8 kHz to 192 kHz sample rates
  • Differential DAC output
  • Log volume control with autoramp function
  • SPI® controllable for flexibility
  • Software-controllable clickless mute
  • Applications include Automotive audio systems, Home Theater Systems, Set-top boxes, Digital audio effects processors
 
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