MS6544MU datasheet(7/9 Pages) MOSA

Part #	MS6544MU

Description	Stereo Headphone Driver, 0dB / 6dB Gain Low Voltage, Internal Mute Function No Popping Noise When Power On / Off

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Manufacturer	MOSA [MOSA ELECTRONICS]

Direct Link	http://www.mosanalog.com

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7 / 9 page

MOSA

MS6544/6541

Class AB Stereo Headphone Driver with Mute

REV 2

7/9

www.mosanalog.com

APPLICATION INFORMATION

Low voltage application

100k

1u

90k

1u

V

INA

VTM

47u

32

47u

1u

V

INB

1u

H : Active

L : Mute

7

6

5

8

2

3

4

1

MUTE

BIAS

90k

6dB

VDD=3.3V

0.1u

100u

200p

90k

200p

f

-3dB

= 17.6kHz

DC

gain

= 1

Headphone

10

Fig.1

The 1st order low pass filter for MP3 solution with MS6544.

100k

1u

V

INA

VTM

47u

32

47u

1u

V

INB

1u

H : Active

L : Mute

7

6

5

8

2

3

4

1

MUTE

BIAS

90k

(180k)

90k

(180k)

6dB

(0dB)

6dB

(0dB)

0.1u

100u

DC

gain

= 2 for MS6544

DC

gain

= 1 for MS6541

Headphone

VDD=3.3V

10

Fig.2

The basic application.

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MS6544MU Datasheet(PDF) 7 Page - MOSA ELECTRONICS

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