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AD1849K PDF预览

AD1849K

更新时间: 2024-01-01 12:26:36
品牌 Logo 应用领域
亚德诺 - ADI 解码器编解码器
页数 文件大小 规格书
28页 295K
描述
Serial-Port 16-Bit SoundPort Stereo Codec

AD1849K 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:QFP包装说明:TQFP-44
针数:44Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.9
商用集成电路类型:CONSUMER CIRCUITJESD-30 代码:S-PQFP-G44
JESD-609代码:e0长度:10 mm
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:LQFP
封装形状:SQUARE封装形式:FLATPACK, LOW PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:1.6 mm最大压摆率:130 mA
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 (Sn/Pb)端子形式:GULL WING
端子节距:0.8 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:10 mm
Base Number Matches:1

AD1849K 数据手册

 浏览型号AD1849K的Datasheet PDF文件第2页浏览型号AD1849K的Datasheet PDF文件第3页浏览型号AD1849K的Datasheet PDF文件第4页浏览型号AD1849K的Datasheet PDF文件第5页浏览型号AD1849K的Datasheet PDF文件第6页浏览型号AD1849K的Datasheet PDF文件第7页 
Serial-Port 16-Bit  
SoundPort Stereo Codec  
a
AD1849K  
FEATURES  
speaker and stereo headphone drive circuits that require no  
additional external components. 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, from an external  
clock, or from the serial interface bit clock.  
Single-Chip Integrated ⌺⌬ Digital Audio Stereo Codec  
Multiple Channels of Stereo Input and Output  
Digital Signal Mixing  
On-Chip Speaker and Headphone Drive Capability  
Program m able Gain and Attenuation  
On-Chip Signal Filters  
T he Codec includes a stereo pair of Σ∆ analog-to-digital  
converters and a stereo pair of Σ∆ digital-to-analog converters.  
Analog signals can be input at line levels or microphone levels.  
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.  
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 and Mixed +5 V/ +3.3 V Supplies  
Serial Interface Com patible w ith ADSP-21xx Fixed-  
Point DSPs  
T he left and right channel 16-bit outputs from the ADCs are  
available over a single bidirectional serial interface that also sup-  
ports 16-bit digital input to the DACs and control information.  
T he AD1849K can accept and generate 8-bit µ-law or A-law  
companded digital data.  
Com patible w ith CS4215 (See Text)  
P RO D UCT O VERVIEW  
T he Serial-Port AD1849K SoundPort® Stereo Codec integrates  
the key audio data conversion and control functions into a single  
integrated circuit. T he AD1849K is intended to provide a com-  
plete, single-chip audio solution for multimedia applications  
requiring operation from a single +5 V supply. External signal  
path circuit requirements are limited to three low tolerance  
capacitors for line level applications; anti-imaging filters are  
incorporated on-chip. The AD1849K includes on-chip monaural  
T he Σ∆ DACs are preceded by a digital interpolation filter. An  
attenuator provides independent user volume control over each  
DAC channel. Nyquist images and shaped quantization noise  
are removed from the DACs’ analog stereo output by on-chip  
switched-capacitor and continuous-time filters. Two independent  
stereo pairs of line-level (or one line-level and one headphone)  
outputs are generated, as well as drive for a monaural (mono)  
speaker.  
SoundPort is a registered trademark of Analog Devices, Inc.  
(Continued on page 8)  
FUNCTIO NAL BLO CK D IAGRAM  
DIGITAL  
SUPPLY  
ANALOG  
SUPPLY  
CRYSTALS  
POWER DOWN  
2
2
DIGITAL  
I/O  
LINE L  
LINE R  
OSCILLATORS  
L
DATA/CONTROL  
MODE  
∑∆ A/D  
µ/A  
ANALOG  
OUT  
GAIN  
GAIN  
CONVERTER  
LAW  
MIC L  
MIC R  
20  
DATA/CONTROL  
TRANSMIT  
MUX  
dB  
R
S
∑∆ A/D  
CONVERTER  
µ/A  
LAW  
E
R
I
L
O
O
P
B
A
C
K
LOOPBACK  
A
L
MONITOR MIX  
P
O
R
T
L
∑∆ D/A  
CONVERTER  
ANALOG  
FILTER  
µ/A  
LAW  
ATTENUATE  
ATTENUATE  
INTERPOL ATTENUATE  
LINE 0 L  
MUTE  
MUTE  
DATA/CONTROL  
RECEIVE  
R
L
∑∆ D/A  
CONVERTER  
ANALOG  
FILTER  
µ/A  
LAW  
LINE 0 R  
LINE 1 L  
INTERPOL ATTENUATE  
2
PARALLEL I/O  
BIT CLOCK  
ANALOG  
IN  
FRAME SYNC  
MUTE  
HEADPHONE RETURN  
LINE 1 R  
R
AD1849K  
REFERENCE  
RESET  
OUT  
RETURN  
MONO SPEAKER  
CHAINING CHAINING  
OUTPUT INPUT  
2.25V  
REV. 0  
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.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700 Fax: 617/ 326-8703  

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