- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373860 > AD1846 (Analog Devices, Inc.) Low Cost Parallel-Port 16-Bit SoundPort Stereo Codec(低成本并行口16位立體聲編碼譯碼器) PDF資料下載
參數(shù)資料
| 型號： | AD1846 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | Codec |
| 英文描述： | Low Cost Parallel-Port 16-Bit SoundPort Stereo Codec(低成本并行口16位立體聲編碼譯碼器) |
| 中文描述： | 低成本并行端口16位SoundPort立體聲編解碼器（低成本并行口16位立體聲編碼譯碼器） |
| 文件頁數(shù)： | 1/28頁 |
| 文件大小： | 291K |
| 代理商： | AD1846 |
當(dāng)前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
REV. A
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
LowCost Parallel-Port 16-Bit
SoundPort Stereo Codec
AD1846
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
Low Cost, Pin- and Register-Compatible Alternative to
AD1848
Single-Chip Integrated
∑
Digital Audio Stereo Codec
Supports the Microsoft Windows Sound System*
Multiple Channels of Stereo Input and Output
Analog and Digital Signal Mixing
Programmable Gain and Attenuation
On-Chip Signal Filters
Digital Interpolation and Decimation
Analog Output Low-Pass
Sample Rates from 5.5 kHz to 48 kHz
68-Lead PLCC Package
Operation from +5 V Supply
Byte-Wide Parallel Interface to ISA and EISA Buses
Supports One or Two DMA Channels and
Programmed I/O
It provides a direct, byte-wide interface to both ISA (“AT ”) and
EISA computer buses for simplified implementation on a com-
puter motherboard or add-in card. T he AD1846 generates en-
able and direction controls for IC buffers such as the 74_245.
T he AD1846 SoundPort Stereo Codec supports a DMA re-
quest/grant architecture for transferring data with the host com-
puter bus. One or two DMA channels can be supported.
Programmed I/O (PIO) mode is also supported for control reg-
ister accesses and for applications lacking DMA control. T wo
input control lines support mixed direct and indirect addressing
of twenty-one internal control registers over this asynchronous
interface.
External circuit requirements are limited to a minimal number
of low cost support components. Anti-imaging DAC output
filters are incorporated on-chip. DAC dynamic range exceeds
80 dB over the 20 kHz audio band. Sample rates from 5.5 kHz
to 48 kHz are supported from external crystals.
T he Codec includes a stereo pair of
∑
analog-to-digital con-
verters and a stereo pair of
∑
digital-to-analog converters. In-
puts to the ADC can be selected from four stereo pairs of analog
signals: line, microphone (“mic”), auxiliary (“aux”) line #1, and
post-mixed DAC output. A software-controlled programmable
gain stage allows independent gain for each channel going into
the ADC. T he ADCs’ output can be digitally mixed with the
DACs’ input.
(Continued on page 9)
PLAYBACK REQ
MUX
∑
A/D
CONVERTER
P
A
R
A
L
L
E
L
P
O
R
T
ANALOG
CRYSTALS
ANALOG
SUPPLY
DIGITAL
SUPPLY
L
R
GAIN
L
R
μ
/
A
L
A
W
∑
∑
OSCILLATORS
REFERENCE
L_MIC
R_MIC
R_LINE
L_LINE
R_AUX1
L_AUX1
∑
R_OUT
GAIN/ATTEN/
MUTE
L_AUX2
R_AUX2
∑
DIGITAL
μ
/
A
L
A
W
DATA7:0
ADR1:0
BUS DRIVER
CONTROL
HOST DMA
INTERRUPT
CAPTURE REQ
EXTERNAL
CONTROL
CONTROL
REGS
DIGITAL
MIX
16
∑
A/D
CONVERTER
16
∑
D/A
CONVERTER
∑
D/A
CONVERTER
ANALOG
FILTER
GAIN
ANALOG
FILTER
INTERPOL
INTERPOL
ATTENUATE
ATTENUATE
L_OUT
ATTEN/
MUTE
ATTEN/
MUTE
GAIN/ATTEN/
MUTE
AD1846
POWER DOWN
V
REF
PLAYBACK ACK
CAPTURE ACK
CS
WR
RD
PRODUCT OVE RVIE W
T he Parallel-Port AD1846 SoundPort
Stereo Codec integrates
key audio data conversion and control functions into a single in-
tegrated circuit. T he AD1846 is intended to provide a complete,
single-chip audio solution for business audio and multimedia
applications requiring operation from a single +5 V supply.
*Windows Sound System is a trademark of Microsoft Corp.
SoundPort is a registered trademark of Analog Devices, Inc.
FUNCT IONAL BLOCK DIAGRAM
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD1847JP | Serial-Port 16-Bit SoundPort Stereo Codec |
| AD1847JST | Serial-Port 16-Bit SoundPort Stereo Codec |
| AD1847 | Serial-Port 16-Bit SoundPort Stereo Codec(串口16位立體聲編碼譯碼器) |
| AD1848K | Parallel-Port 16-Bit SoundPort Stereo Codec(并口16位立體聲編碼譯碼器) |
| AD1848 | CAVALIER 2MM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1846JP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD1846JP-REEL | 制造商:Analog Devices 功能描述: |
| AD1847 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Serial-Port 16-Bit SoundPort Stereo Codec |
| AD1847JP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD1847JP-REEL | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。