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參數(shù)資料
| 型號： | CS6420-CS |
| 廠商： | CIRRUS LOGIC INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | FULL DUPLEX SPEAKERPHONE CHIP |
| 中文描述： | SPEAKER PHONE CIRCUIT, PDSO20 |
| 封裝： | SOIC-20 |
| 文件頁數(shù)： | 1/52頁 |
| 文件大小： | 815K |
| 代理商： | CS6420-CS |
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Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 1997
(All Rights Reserved)
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
CS6420
Full-Duplex Speakerphone Chip
Features
l
Single-chip full-duplex hands-free operation
l
Automatic gain control
l
Optional 34 dB microphone preamplifier
l
Integrated mute and volume control
l
Integrated 80 dB IDR dual codec
l
Speech-trained Network and Acoustic Echo
Cancellers
l
Powerdown mode
l
Microcontroller Interface
General Description
Most modern speakerphones use half-duplex operation,
which switches transmission between the far-end talker
and the speakerphone user. This is done because the
acoustic coupling between the speaker and microphone
is much higher in speakerphones than in handsets
where the coupling is mechanically suppressed.
The CS6420 enables full-duplex conversation with a sin-
gle-chip solution. The CS6420 can easily replace
existing half-duplex speakerphone ICs with a huge in-
crease in conversation quality.
The CS6420 consists of telephone & audio interfaces,
two codecs and an echo-cancelling DSP.
ORDERING INFORMATION
CS6420-CS
CDB6420
20-pin SOIC
Evaluation Board
BANDGAP
AO
DGND
NI
DATA
STROBE
DRDY
CLKI
CLKO
API
RST
Mcrocontroller Interface
NO
AVDD
DVDD
AVDD
NC4
NC3
NC2
NC1
AGND
A
0,6,9.5,12dB
H
F
R
R
S
H
M
C
D
Σ
+
-
Pre-Emphasis
Filter
Network
Echo Canceller
A
0,6,9.5,12dB
F
H
T
S
T
H
C
M
D
Σ
+
-
Filter
Echo Canceller
Acoustic
Pre-Emphasis
APO
MB
34 dB
1 k
2.12V
3.5V
Clock
Generation
JUN ‘97
DS205PP2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CS6422-IS | Enhanced Full-Duplex Speakerphone IC |
| CS6422-ISZ | Enhanced Full-Duplex Speakerphone IC |
| CS6422 | Enhanced Full-Duplex Speakerphone IC |
| CS6422-CS | Enhanced Full-Duplex Speakerphone IC |
| CS6422-CSZ | Enhanced Full-Duplex Speakerphone IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS6422 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Enhanced Full-Duplex Speakerphone IC |
| CS6422-000 | 制造商:TE Connectivity 功能描述:RNF-100-2-GY-SP-CS5318 - Cable Rools/Shrink Tubing |
| CS6422-CS | 功能描述:IC CODEC SPKRPHONE 2CH 20-SOIC RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| CS6422-CSZ | 功能描述:音頻放大器 Enhanced Full-Duplex Speakerphone IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| CS6422-CSZ | 制造商:Cirrus Logic 功能描述:ICTelephone Speech CircuitSOP20PINPL |
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