MDB6S datasheet(4/8 Pages) FAIRCHILD | New Products, Tips and Tools for Power and Mobile Applications

No. de pieza	MDB6S

Descripción Electrónicos	New Products, Tips and Tools for Power and Mobile Applications

Download	8 Pages

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Fabricante Electrónico	FAIRCHILD [Fairchild Semiconductor]

Página de inicio	http://www.fairchildsemi.com

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4 / 8 page

Meet Audio Standards with a Single Device

AUDIO JACK DETECTION SWITCH

Advantages

• Detectstwodifferent

audiojackconfigurations

• Enablesuseofallexisting

headsetsinnewdevices

withoutmanualconfiguration

• AutomaticallyroutesGND

andMICtoaudiojack

terminals

• Abilitytodetect3-or

4-poleaudioaccessories

Applications

• Mobilehandsets

• Smartphones

• Tablets

• Laptops

• PMP/MP3

For more information, please visit:

www.fairchildsemi.com/pf/FS/FSA8049.html

Designers no longer have to choose supporting one audio jack configuration

standard (OMTP or CTIA) over the other, or rely on a more complex design

with additional components. Fairchild's FSA8049 MIC/GND cross point switch

detects two different audio jack configurations and connects properly to each

standard, enabling the use of all existing headsets in new devices without manual

configuration. This functionality allows the end-user to plug accessories, such as

headsets, with different audio pole configurations into the device and have them

operate correctly. The FSA8049 is available in a space-saving 9-ball WLCSP

1.16mm x 1.16mm package.

MIC

MIC/GND2

MIC/GND1

V

DD

EN

CEXT

LSPKR

RSPKR

3POLE

4POLE

TO AUDIO PLUG

DETECTION CIRCUIT

Audio

Sub System

MIC Bias

MIC

Baseband

Processor

GPIO

R MIC

CMIC

5

tOn/Off

Capacitor

GND

DETECTION

SWITCH ENABLE

TIMING

OSCILLATOR &

LOGIC

100m

AUDIO JACK

Product

Number

Detection

V

DD (V)

THD

(MIC)

R

ON(GNDA)

ESD

(IEC 61000-4-2)

Package

FSA8049

Audio Plug,

GND & MIC

Polarity

2.5 to

4.4

0.002%

80mΩ

15kV (Air Gap),

8kV (Contact)

1.16mm x 1.16mm

9 ball WLCSP

Typical Application Diagram of Mobile Phone Audio Jack with FSA8049

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MDB6S Datasheet(PDF) 4 Page - Fairchild Semiconductor

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