- 您現(xiàn)在的位置：買賣IC網 > PDF目錄373860 > AD1847JST (ANALOG DEVICES INC) Serial-Port 16-Bit SoundPort Stereo Codec PDF資料下載
參數(shù)資料
| 型號： | AD1847JST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Serial-Port 16-Bit SoundPort Stereo Codec |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
| 封裝： | PLASTIC, TQFP-44 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 311K |
| 代理商： | AD1847JST |
當前第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. B
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
Serial-Port 16-Bit
SoundPort Stereo Codec
AD1847
Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
Single-Chip Integrated
SD
Digital Audio Stereo Codec
Supports the Microsoft Windows Sound System*
Multiple Channels of Stereo Input
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
44-Lead PLCC and TQFP Packages
Operation from +5 V Supplies
Serial Digital Interface Compatible with ADSP-21xx
Fixed-Point DSP
I
S
A
B
U
S
ASIC
AD1847
DSP
Figure 1. Example System Diagram
External circuit requirements are limited to a minimal number
of low cost support components. Anti-imaging DAC output
filters are incorporated on-chip. Dynamic range exceeds 70 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 (ADCs) and a stereo pair of
∑
digital-to-analog con-
verters (DACs). Inputs to the ADC can be selected from four
stereo pairs of analog signals: line 1, line 2, 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.
T he pair of 16-bit outputs from the ADCs is available over a se-
rial interface that also supports 16-bit digital input to the DACs
and control/status information. T he AD1847 can accept and
generate 16-bit twos-complement PCM linear digital data, 8-bit
unsigned magnitude PCM linear data, and 8-bit
μ
-law or A-law
companded digital data.
(Continued on page 7)
FUNCT IONAL BLOCK DIAGRAM
ANALOG
I/O
L
R
DIGITAL
I/O
CRYSTALS
2
2
2
S
E
R
I
A
L
P
O
R
T
OSCILLATORS
2.25V
REFERENCE
L
R
L
R
CLOCK
OUT
ATTEN
DIGITAL
SUPPLY
ANALOG
SUPPLY
M
U
X
L
R
L
R
L
R
L
R
BUS
MASTER
TIME SLOT
INPUT
TIME SLOT
OUTPUT
SERIAL DATA
OUTPUT
SERIAL DATA
INPUT
EXTERNAL
CONTROL
SERIAL BIT
CLOCK
FRAME
SYNC
RESET
LINE 1
INPUT
LINE 2
INPUT
AUX 1
INPUT
LINE
OUTPUT
AUX 2
INPUT
AD1847
∑
ATTEN/
MUTE
ATTEN
POWER
DOWN
μ
/A
LAW
/A
LAW
ATTEN
∑
∑
∑
D/A
CONVERTER
D/A
CONVERTER
/A
LAW
/A
LAW
GAIN
GAIN
A/D
CONVERTER
A/D
CONVERTER
GAIN/ATTEN/MUTE
GAIN/ATTEN
/MUTE
GAIN/ATTEN
/MUTE
ATTEN/
MUTE
PRODUCT OVE RVIE W
T he AD1847 SoundPort
Stereo Codec integrates key audio
data conversion and control functions into a single integrated
circuit. T he AD1847 is intended to provide a complete, low
cost, single-chip solution for business, game audio and multi-
media applications requiring operation from a single +5 V sup-
ply. It provides a serial interface for implementation on a
computer motherboard, add-in or PCMCIA card. See Figure 1
for an example system diagram.
*Windows Sound System is a registered trademark of Microsoft Corp.
SoundPort is a registered trademark of Analog Devices, Inc.
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| AD1849 | CAVALIER 2MM NOIR |
| AD1848KST | Parallel-Port 16-Bit SoundPort Stereo Codec |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD1848 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Parallel-Port 16-Bit SoundPort Stereo Codec |
| AD1848K | 制造商:AD 制造商全稱:Analog Devices 功能描述:Parallel-Port 16-Bit SoundPort Stereo Codec |
| AD1848KP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD1848KST | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD1848XP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Soundcard Circuits |
發(fā)布緊急采購，3分鐘左右您將得到回復。