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CS6422-ISZ PDF预览

CS6422-ISZ

更新时间: 2024-01-18 10:54:31
品牌 Logo 应用领域
凌云 - CIRRUS /
页数 文件大小 规格书
48页 875K
描述
Enhanced Full-Duplex Speakerphone IC

CS6422-ISZ 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:0.300 INCH, LEAD FREE, MS-013, SOIC-20针数:20
Reach Compliance Code:unknown风险等级:5.66
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:12.8 mm功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:COMMERCIAL座面最大高度:2.65 mm
标称供电电压:5 V表面贴装:YES
电信集成电路类型:SPEAKER PHONE CIRCUIT温度等级:INDUSTRIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

CS6422-ISZ 数据手册

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CS6422  
Enhanced Full-duplex Speakerphone IC  
Features  
General Description  
Most modern speakerphones use half-duplex operation,  
which alternates transmission between the far-end talker  
and the speakerphone user. This is done to ensure sta-  
bility because the acoustic coupling between the  
speaker and microphone is much higher in speaker-  
phones than in handsets where the coupling is  
mechanically suppressed.  
l Single-chip, full-duplex, hands-free operation  
l Optional Tx Noise Guard  
l Programmable attenuation during double-talk  
l Optional 34 dB microphone preamplifier  
l Dual channel AGC’ed volume controls with  
mute  
The CS6422 enables full-duplex conversation using  
echo cancellation and suppression in a single-chip solu-  
tion. The CS6422 can easily replace existing half-duplex  
speakerphone ICs with a huge increase in conversation  
quality.  
l Dual integrated 80 dB IDR codecs  
l Speech-trained Network and Acoustic Echo  
Cancellers  
l Rx and Tx supplementary echo suppression  
l Configurable half-duplex training mode  
l Powerdown mode  
The CS6422 consists of telephone & audio interfaces,  
two codecs and an echo-cancelling DSP.  
l Microcontroller Interface  
ORDERING INFORMATION  
See page 48.  
CS6422-IS  
-40o to 85oC  
20-pin SOIC  
CDB6422 Evaluation Board  
NC1 NC2 NC3  
NC4  
12  
DVDD  
16  
AVDD  
1
9
10  
11  
RGain  
RVol  
3
+
+
17  
Rx  
NI  
ADC  
DAC  
AO  
Σ
Suppression  
-
14  
(0, 6, 9.5, 12 dB)  
(Mute, -12 to +30 dB)  
CLKI  
Pre-emphasis  
Clock  
Generation  
13  
Network  
Echo  
Canceller  
Filter  
CLKO  
Acoustic  
Sidetone  
(none, -24,  
ASdt  
Network  
Sidetone  
(none, -24,  
Mic  
20  
Acoustic  
Echo  
Canceller  
-18, -12 dB)  
API  
NSdt  
-18, -12 dB)  
Pre-emphasis  
Filter  
34 dB  
1 k  
-
+
TGain  
TVol  
18  
Tx  
Suppression  
4
+
NO  
DAC  
Σ
ADC  
APO  
(0, 6, 9.5, 12 dB)  
Voltage  
(Mute, -12 to +30 dB)  
Microcontroller Interface  
Reference  
8
7
6
5
15  
2
19  
Copyright © Cirrus Logic, Inc. 2005  
SEP ‘05  
http://www.cirrus.com  
(All Rights Reserved)  
DS295F1  

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