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參數(shù)資料
| 型號： | AD1857JRSRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 263K |
| 代理商： | AD1857JRSRL |
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD1857/AD1858
Stereo, Single Supply
16-, 18- and 20-Bit Sigma-Delta DACs
FUNCT IONAL BLOCK DIAGRAM
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
PRODUCT OVE RVIE W
T he AD1857/AD1858 are complete single-chip stereo digital
audio playback components. T hey each comprise an advanced
digital interpolation filter, a revolutionary “l(fā)inearity-compensated”
multibit sigma-delta (
∑
) modulator with dither, a jitter-tolerant
DAC, switched capacitor and continuous time analog filters and
analog output drive circuitry. Other features include digital
de-emphasis processing and mute. T he AD1857/AD1858
support continuously variable sample rates with essentially
linear phase response, and support 50/15
μ
s digital de-emphasis
intended for “Redbook” 44.1 kHz sample frequency playback
from Compact Discs. T he user must provide a master clock that
is synchronous with the left/right clock at 256 or 384 times the
intended sample frequency.
T he AD1857/AD1858 have a 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 con-
verters. T he AD1857 serial data input port can be configured
in either 16-bit, 18-bit or 20-bit left-justified or I
2
S-justified
modes. T he AD1858 serial data input port can be configured in
either 16-bit right-justified or DSP serial port compatible modes.
T he AD1857/AD1858 accept serial audio data in MSB first,
twos-complement format. A power-down mode is offered to
minimize power consumption when the device is inactive. T he
AD1857/AD1858 operate from a single +5 V power supply.
T hey are fabricated on a single monolithic integrated circuit and
housed in 20-pin SSOP packages for operation over the
temperature range 0
°
C to +70
°
C.
FEATURES
Low Cost, High Performance Stereo DACs
128 Times Oversampling Interpolation Filter
Multibit
SD
Modulator with Triangular PDF Dither
Discrete Time and Continuous Time Analog
Reconstruction Filters
Extremely Low Out-of-Band Energy
Buffered Outputs with 2 k
V
Output Load Drive
94 dB Dynamic Range, –90 dB THD+N Performance
Digital De-emphasis and Mute
6
0.1
8
C Maximum Phase Linearity Deviation
Continuously Variable Sample Rate Support
Power-Down Mode
16-, 18- and 20-Bit I
2
S-J ustified, Left-J ustified Modes
Offered on AD1857
Accepts 24-Bit Word
16-Bit Right-J ustified and DSP Serial Port Modes
Offered on AD1858
Single +5 V Supply
20-Pin SSOP Package
APPLICATIONS
Digital Cable TV and Direct Broadcast Satellite Set-Top
Decoder Boxes
Video Laser Disk, Video CD and CD-I Players
High Definition Televisions, Digital Audio Broadcast
Receivers
CD, CD-R, DAT, DCC and MD Players
Digital Audio Workstations, Computer Multimedia
Products
MUTE
MUTE
MULTIBIT
Σ
MODULATOR
AD1857/AD1858
ANALOG
SUPPLY
DIGITAL
SUPPLY
16-/18-/20-BIT
DIGITAL
DATA INPUT
ANALOG
OUTPUTS
MUTE
CLOCK
MODE
CLOCK
IN
SERIAL
MODE
COMMON
MODE
2
4
3
DE-EMPHASIS
POWER-DOWN
/
RESET
128x
INTERPOLATION
FILTER
SERIAL DATA
INTERFACE
MULTIBIT
Σ
MODULATOR
128x
INTERPOLATION
FILTER
VOLTAGE
REFERENCE
ANALOG
FILTER
CLOCK
CIRCUIT
OUTPUT
BUFFER
ANALOG
FILTER
OUTPUT
BUFFER
DAC
DAC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD1858JRS | Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| AD1858JRSRL | Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| AD1857 | Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| AD1857JRS | Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| AD1858 | Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1857JRSZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| AD1857JRSZRL | 制造商:Analog Devices 功能描述:DAC 2-CH Delta-Sigma 18-bit 20-Pin SSOP T/R |
| AD1858 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs |
| AD1858JRS | 制造商:Analog Devices 功能描述:DAC 2-CH Delta-Sigma 16-bit 20-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:RIGHT JUST DUAL MULTIBIT AUDIO DAC - Bulk |
| AD1858JRSRL | 制造商:Analog Devices 功能描述:DAC 2-CH Delta-Sigma 16-bit 20-Pin SSOP T/R 制造商:Rochester Electronics LLC 功能描述:RIGHT JUST DUAL MULTIBIT AUDIO DAC - Bulk |
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