AD1857JRS

$7.19

Description：IC DAC STEREO SNGL-SUP 5V 20SSOP
Series：-

SKU:276cf87b4ceb Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC STEREO SNGL-SUP 5V 20SSOP
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：20-SSOP (0.209", 5.30mm Width)
Supplier Device Package：20-SSOP
Mounting Type：Surface Mount
Grade：-
Qualification：-

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AD1857JRS

Overview

The AD1857JRS is a stereo, single-supply 16-, 18- and 20-bit sigma-delta DAC from Analog Devices Inc. It integrates an advanced digital interpolation filter, a multibit sigma-delta modulator with dither, jitter-tolerant DAC, switched capacitor and continuous time analog filters, and analog output drive circuitry. The device supports continuously variable sample rates with linear phase response and includes digital de-emphasis processing for Redbook CD playback. It operates from a single +5 V supply and accepts serial audio data in MSB first, twos-complement format via a flexible serial interface configurable for I2S or left/right justified modes.

Feature Summary

128 times oversampling interpolation filter with multibit sigma-delta modulator
Integrated discrete time and continuous time analog reconstruction filters
Buffered outputs capable of driving a 2 kΩ load
94 dB dynamic range and -90 dB THD+N performance

Applications

Digital Cable TV and Direct Broadcast Satellite Set-Top Decoder Boxes
Video Laser Disk, Video CD and CD-I Players
High Definition Televisions and Digital Audio Broadcast Receivers
CD, CD-R, DAT, DCC and MD Players
Digital Audio Workstations and Computer Multimedia Products

Procurement Notes

Verify the specific ordering suffix RS-20 corresponds to the 20-Lead SSOP package configuration. Confirm that the J suffix indicates operation over the 0 °C to +70°C temperature range as specified in the ordering guide. Ensure compatibility with single +5 V power supply requirements for both analog and digital domains.

Selection Notes

Select the AD1857JRS when 18-bit resolution and support for 16-, 18-, or 20-bit word widths are required. Choose this component over the AD1858 variant if I2S-justified or left-justified serial input modes are necessary. Ensure the system master clock can be provided at 256 or 384 times the intended sample frequency for proper synchronization.

Part Context

The AD1857JRS belongs to the AD1857/AD1858 family of stereo digital audio playback components. It is functionally identical to the AD1858 except for its serial data input port capabilities, offering greater flexibility in data word width and justification formats. Both devices share the same core architecture, including the multibit sigma-delta modulator and integrated analog filtering.