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AD1854:  Stereo, 96 kHz, Multibit Sigma-Delta DAC

Product Details


Newer Alternatives:
  • AD1852 Stereo, 24-Bit, 192 kHz, Multibit Sigma Delta DAC

The AD1854 is a high performance, single-chip stereo, audio DAC delivering 113 dB Dynamic Range and 112 dB SNR (A-weighted—not muted) at 48 kHz sample rate. It is comprised of a multibit sigma-delta modulator with dither, continuous time analog filters and analog output drive circuitry. Other features include an on-chip stereo attenuator and mute, programmed through an SPI-compatible serial control port. The AD1854 is fully compatible with current DVD formats, including 96 kHz sample frequency and 24 bits. It is also backwards compatible by supporting 50 ms/15 ms digital de-emphasis intended for "redbook" 44.1 kHz sample frequency playback from compact discs.

The AD1854 has a very simple but very flexible serial data input port that allows for glueless interconnection to a variety of ADCs, DSP chips, AES/EBU receivers and sample rate converters. The AD1854 can be configured in left-justified, I2S, right-justified, or DSP serial port compatible modes. The AD1854 accepts serial audio data in MSB first, twos-complement format. A power-down mode is offered to minimize power consumption when the device is inactive. The AD1854 operates from a single 5 V power supply. It is fabricated on a single monolithic integrated circuit and housed in a 28-lead SSOP package for operation over the temperature range 0°C to 70°C.

FEATURES and BENEFITS

  • 5 V Stereo Audio DAC System
  • Accepts 16-/18-/20-/24-Bit Data
  • Supports 24 Bits and 96 kHz Sample Rate
  • Multibit Sigma-Delta Modulator with “Perfect Differential Linearity Restoration” for Reduced Idle Tones and Noise Floor
  • Data Directed Scrambling DAC—Least Sensitive to Jitter
  • Differential Output for Optimum Performance
  • 113 dB Dynamic Range at 48 kHz Sample Rate (AD1854KRS)
  • See datasheet for additional features

Functional Block Diagram for AD1854

Documentation

Title Content Type File Type
AD1854: Stereo, 96 kHz, Multibit Sigma Delta DAC Data Sheet (Rev A, 04/2000) (pdf, 390 kB) Data Sheets PDF
AN-327: DAC ICs: How Many Bits Is Enough?  (pdf, 345 kB)
Digital audio playback DACs are available in a variety of different architectures--each with it's own performance tradeoffs.
Application Notes PDF
AN-211: The Alexander Current-Feedback Audio Power Amplifier  (pdf, 1154 kB) Application Notes PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

AD1854 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD1854JRSZ Status: Production 28 ld SSOP 28 Comm. Tube, 47 $6.07 $4.05 Y  Material Info PCN Purchase Sample
AD1854JRSZRL Status: Production 28 ld SSOP 28 Comm. Reel, 1500 - $4.05 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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