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AD1847JP

更新时间： 2024-01-02 02:22:34
品牌 Logo 应用领域
亚德诺 - ADI 解码器编解码器商用集成电路
页数 文件大小 规格书
28页 313K
描述
Serial-Port 16-Bit SoundPort Stereo Codec

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AD1847JP 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Active零件包装代码：LCC
包装说明：PLASTIC, LCC-44针数：44
Reach Compliance Code：unknown风险等级：5.89
商用集成电路类型：CONSUMER CIRCUITJESD-30 代码：S-PQCC-J44
JESD-609代码：e0长度：16.585 mm
湿度敏感等级：NOT SPECIFIED功能数量：1
端子数量：44最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：COMMERCIAL座面最大高度：4.57 mm
最大供电电压 (Vsup)：5.25 V最小供电电压 (Vsup)：4.75 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：TIN LEAD端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：16.585 mm

AD1847JP 数据手册

 浏览型号AD1847JP的Datasheet PDF文件第2页浏览型号AD1847JP的Datasheet PDF文件第3页浏览型号AD1847JP的Datasheet PDF文件第4页浏览型号AD1847JP的Datasheet PDF文件第5页浏览型号AD1847JP的Datasheet PDF文件第6页浏览型号AD1847JP的Datasheet PDF文件第7页 
Serial-Port 16-Bit  
SoundPort Stereo Codec  
a
AD1847  
FEATURES  
I
Single-Chip Integrated ⌺⌬ Digital Audio Stereo Codec  
Supports the Microsoft Window s Sound System *  
Multiple Channels of Stereo Input  
Analog and Digital Signal Mixing  
Program m able Gain and Attenuation  
On-Chip Signal Filters  
Digital Interpolation and Decim ation  
Analog Output Low -Pass  
Sam ple Rates from 5.5 kHz to 48 kHz  
44-Lead PLCC and TQFP Packages  
Operation from +5 V Supplies  
S
A
ASIC  
AD1847  
B
U
S
DSP  
Figure 1. Exam ple 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.  
Serial Digital Interface Com patible w ith ADSP-21xx  
Fixed-Point DSP  
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.  
P RO D UCT O VERVIEW  
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.  
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.  
*Windows Sound System is a registered trademark of Microsoft Corp.  
SoundPort is a registered trademark of Analog Devices, Inc.  
(Continued on page 7)  
FUNCTIO NAL BLO CK D IAGRAM  
CLOCK  
OUT  
ANALOG DIGITAL  
SUPPLY SUPPLY  
CRYSTALS  
ANALOG  
I/O  
DIGITAL  
I/O  
2
2
RESET  
L
R
L
LINE 1  
INPUT  
OSCILLATORS  
POWER  
DOWN  
LINE 2  
INPUT  
M
U
X
L
∑∆ A/D  
µ/A  
R
L
BUS  
MASTER  
GAIN  
GAIN  
CONVERTER  
LAW  
AUX 1  
INPUT  
S
E
R
I
A
L
R
TIME SLOT  
INPUT  
R
µ/A  
LAW  
∑∆ A/D  
CONVERTER  
TIME SLOT  
OUTPUT  
SERIAL DATA  
OUTPUT  
ATTEN  
GAIN/ATTEN/MUTE  
SERIAL DATA  
INPUT  
P
O
R
T
L
µ/A  
∑∆ D/A  
ATTEN/  
MUTE  
ATTEN  
ATTEN  
∑
2
∑
LAW  
L
CONVERTER  
EXTERNAL  
CONTROL  
LINE  
R
∑∆ D/A  
CONVERTER  
µ/A  
LAW  
ATTEN/  
MUTE  
OUTPUT  
∑
∑
SERIAL BIT  
CLOCK  
R
GAIN/ATTEN  
/MUTE  
L
FRAME  
SYNC  
AUX 2  
INPUT  
GAIN/ATTEN  
/MUTE  
AD1847  
REFERENCE  
2.25V  
R
REV. B  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
® Analog Devices, Inc., 1996  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700 Fax: 617/ 326-8703  
1234567...28

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