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Product Detailed Parameters
- Description：IC DAC STEREO 96KHZ 5V 28SSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：-
- Number of D/A Converters：-
- Settling Time：-
- Output Type：-
- Differential Output：-
- Data Interface：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- INL/DNL (LSB)：-
- Architecture：-
- Operating Temperature：-
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：28-SSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
Download product information
Overview
The AD1854KRS is a stereo audio digital-to-analog converter (DAC) from Analog Devices, housed in a 28-lead SSOP package. It supports 16-, 18-, 20-, and 24-bit data formats with sample rates up to 96 kHz. The device features a multibit sigma-delta modulator for improved linearity and includes an on-chip volume control with 1024 steps. At a 48 kHz sample rate, it achieves a dynamic range of 113 dB and a signal-to-noise ratio of 112 dB (A-weighted). Total Harmonic Distortion plus Noise (THD+N) is specified at -101 dB. It operates from a single 5 V supply and offers flexible serial data interfaces including I2S, left-justified, and right-justified modes.
Feature Summary
- Multibit Sigma-Delta Modulator with Perfect Differential Linearity Restoration
- On-Chip Volume Control with 1024 Steps and Smooth Auto Ramp
- Hardware and Software Controllable Clickless Mute
- Flexible Serial Data Port: I2S, Left-Justified, Right-Justified
Applications
- DVD Players
- CD Players
- Set-Top Boxes
- Home Theater Systems
- Automotive Audio Systems
Procurement Notes
The AD1854KRS is listed as obsolete in the provided documentation. Verification of current availability requires checking distributor status directly. Ensure that any replacement components maintain compatibility with the 28-lead SSOP package and 5 V supply requirements. Confirm that the substitute device supports the required 24-bit/96 kHz specifications if system performance must be preserved.
Selection Notes
Select the AD1854KRS when high dynamic range (113 dB) and low THD+N (-101 dB) are required for stereo audio applications. It is suitable for systems needing integrated volume control and mute functions to reduce external component count. The device supports multiple serial interface formats, simplifying integration with various DSPs and ADCs. Ensure the design accommodates the 28-lead SSOP thermal characteristics and 5 V power supply constraints.
Part Context
The AD1854 is part of Analog Devices' stereo audio DAC family, designed for high-performance consumer and professional audio equipment. The KRS suffix denotes the commercial temperature range (0°C to 70°C) and the RS-28 package option. This component was engineered to support DVD formats and backward compatibility with Red Book CD standards via digital de-emphasis processing.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the source material. When selecting a replacement, verify pinout compatibility with the 28-lead SSOP package and ensure the new device supports the same serial interface modes (I2S, Left/Right Justified) and voltage levels.
