AD1934 8-Channel DAC with PLL, 192 kHz, 24 Bits

Automotive audio systems Home theater systems Set-top boxes Digital audio effects processors

The AD1934 is a high performance, single chip that provides 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 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.

Applications:

Features and Benefits
  • 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
  • See data sheet for additional features
Audio & Video Products
IBIS Models
Data Sheets
Documentnote
AD1934: 8-Channel DAC with PLL and Single-Ended Outputs, 192 kHz, 24 Bits Data Sheet (Rev. D)PDF 521 kB
Application Notes
Documentnote
AN-1365: AD1933/AD1934/AD1938/AD1939/AD1974 Boot Up Application (Rev. 0)PDF 895.98 K
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD1934WBSTZ Production48 ld LQFPOTH 250-40 to 105C3.483.15Y
AD1934WBSTZ-RL Production48 ld LQFPREEL 2000-40 to 105C03.15Y
AD1934YSTZ Production48 ld LQFPOTH 250-40 to 105C00Y
AD1934YSTZ-RL Production48 ld LQFPREEL 2000-40 to 105C00Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD1938AZEvaluation Board499Y
AD1934: 8-Channel DAC with PLL and Single-Ended Outputs, 192 kHz, 24 Bits Data Sheet (Rev. D) ad1934
AD1938 IBIS Model ad1934
AN-1365:AD1933 / AD1934 / AD1938 / AD1939 / AD1974 引导应用 (Rev. 0) ad1934
AN-1365: AD1933/AD1934/AD1938/AD1939/AD1974 Boot Up Application (Rev. 0) ad1938