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24-Bit 8-Channel DAC with PLL, 192 KHz

Model: AD1934

  • PLL generated or direct master clock
  • Low EMI design
  • 108 dB DAC dynamic range and SNR
  • -94 dB THD + N
  • Single 3.3 V supply
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The AD1934 is a high performance, single chip that provides eight digital-to-analog converters (DACs) with single-ended output using patented multibit sigma-delta architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1934 operates from 3.3 V digital and analog supplies. The AD1934 is available in a 48-lead (single-ended output) LQFP. Other members of this family include a differential DAC output and I2C® control port version. The AD1934 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 AD1934 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
  • 108 dB DAC dynamic range and SNR
  • -94 dB THD + N
  • Single 3.3 V supply
  • Tolerance for 5 V logic inputs
  • Supports 24 bits and 8 kHz to 192 kHz sample rates
  • Single-ended 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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