SAN2202A Datasheet

IC型號(hào)：
SAN2202A
PDF描述：
SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER
文件大小：
83.86KB
PDF頁數(shù)：
9頁
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SAMES

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SAN2202

APPLICATION NOTE

SINGLE CHIP 鈥淪PEAKERPHONE鈥?WITH

8 - OHM LOUDSPEAKER AMPLIFIER

1 Scope

This application note describes a low-cost add-on circuit for driving an 8鈩?Loudspeaker to get a simple loudhearing

(鈥淪peakerphone鈥? Telephone.

To possible ways of supplying the amplifier are shown:

SAN2202a:

SAN2202b:

Amplifier supply in shunt transistor path

Amplifier supply by power extraction circuit (SAN3020)

It can be added to any SA253x application without interfering with PTT-relevant parameters, like AC-impedance,

Sidetone cancellation or DC-mask.

2 Key Features

鈥?/div>

Low cost additional circuit enables use of loudhearing function

鈥?/div>

Full duplex 鈥渉andsfree鈥?operation via handset microphone and loudspeaker (at distances <2m between

鈥?/div>

telephone and user)

Can be added to any SA253x- application

Enables use of low cost 8鈩?- Loudspeaker

High output power with low distortion

Entirely powered from the telephone line

No influence of loudspeaker amplifier in AC-impedance, sidetone cancellation or DC-mask

Loudspeaker volume adjustable by potentiometer

Excellent sidetone cancellation of SAS253x circuits enables high loudspeaker volume without howling between

handset microphone and loudspeaker

SAN2202

PDS038-SA2531/2-001

Rev. B

21-03-00

型號(hào)

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描述

廠商

下載
SAN2202

英文版

SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER

SAMES

SAN2202
SAN2202

英文版

SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER

SAMES [Sam...

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SAN2202A

英文版

SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER

SAMES

SAN2202A
SAN2202a

英文版

SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER

SAMES [Sam...

SAN2202a
SAN2202B

英文版

SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER

SAMES

SAN2202B
SAN2202b

英文版

SINGLE CHIP SPEAKERPHONE WITH 8 - OHM LOUDSPEAKER AMPLIFIER

SAMES [Sam...

SAN2202b

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