CD6420 datasheet(1/52 Pages) CIRRUS

부품명	CD6420

상세설명	FULL DUPLEX SPEAKERPHONE CHIP

Download	52 Pages

Scroll/Zoom	100%

제조업체	CIRRUS [Cirrus Logic]

홈페이지	http://www.cirrus.com

Logo

1 / 52 page

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.

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

20-pin SOIC

CDB6420

Evaluation Board

BANDGAP

AO

DGND

NI

DATA

STROBE

DRDY

CLKI

CLKO

API

RST

Microcontroller Interface

NO

AVDD

DVDD

AVDD

NC4

NC3

NC2

NC1

AGND

0,6,9.5,12 dB

Σ

+

-

Pre-Emphasis

Network

Echo Canceller

Filter

0,6,9.5,12 dB

Σ

+

-

Filter

Echo Canceller

Acoustic

Pre-Emphasis

APO

MB

34 dB

1 k

Ω

2.12 V

3.5 V

Clock

Generation

JUN ‘97

DS205PP2

유사한 부품 번호 - CD6420

제조업체	부품명	데이터시트	상세설명
Schurter Inc.	CD64.1101.151	571Kb / 5P	IEC Appliance Inlet C14 with Filter, Fuseholder 1- or 2-pole (5x20 mm or 6.3x32 mm), Line Switch 1- or 2-pole, Voltage Selector (Step)
Schurter Inc.	CD64.4101.151	571Kb / 5P	IEC Appliance Inlet C14 with Filter, Fuseholder 1- or 2-pole (5x20 mm or 6.3x32 mm), Line Switch 1- or 2-pole, Voltage Selector (Step)
Compensated Deuices Inc...	CD645	70Kb / 2P	GENERAL PURPOSE SILICON DIODES
Microsemi Corporation	CD645	45Kb / 2P	GENERAL PURPOSE SILICON DIODES

More results

유사한 설명 - CD6420

제조업체	부품명	데이터시트	상세설명
Cirrus Logic	CS6422	873Kb / 48P	Enhanced Full-Duplex Speakerphone IC
Siemens Semiconductor G...	PSB4860	938Kb / 250P	Digital Answering Machine with Full Duplex Speakerphone SAM EC
CML Microcircuits	CMX7261	2Mb / 64P	Full-duplex operation
List of Unclassifed Man...	ISD-T360SB	1Mb / 109P	VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support
SMSC Corporation	LAN91C96I	547Kb / 109P	Non-PCI Single-Chip Full Duplex Ethernet Controller
CML Microcircuits	DB118	368Kb / 7P	Full-Duplex Audio Processing
Xilinx, Inc	DS570	1Mb / 38P	Supports full-duplex operation
Maxim Integrated Produc...	78Q2123	351Kb / 37P	Full duplex operation capable Rev. 2.0
Sipex Corporation	SP1490E	149Kb / 10P	Full Duplex RS-485 Transceivers
Exar Corporation	SP490	552Kb / 12P	Full Duplex RS-485 Transceivers

More results

CD6420 데이터시트(PDF) 1 Page - Cirrus Logic

CD6420 데이터시트(HTML) 1 Page - Cirrus Logic

유사한 부품 번호 - CD6420

유사한 설명 - CD6420

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

데이터시트 다운로드

링크 URL