Silicon Laboratories Si2457 Manual de usuario descargar pdf (Pagina 17)

Si2493/57/34/15/04

Global ISOmodem-EVB

Rev. 0.7 17

"Do not gound

speaker+ or

Speaker -

AOUT_INTb

+4.7V

JP14

En. Lcl. Speaker

JP14

En. Lcl. Speaker

1 2

R31 10KR31 10K

U27

LM4819

U27

LM4819

SHUTDOWN

BYPASS

IN+

IN-

VO2

GND

VDD

VO1

R33

R172 20.0KR172 20.0K

JP12

Pwr Amp En.

JP12

Pwr Amp En.

1 2

C37 1uFC37 1uF

C27

0.1uF

C27

0.1uF

C23

1uF

C23

1uF

R35

C24

0.1uF

C24

0.1uF

R175 0R175 0

LS1

SPEAKER

LS1

SPEAKER

C26

0.1uF

C26

0.1uF

C25

0.1uF

C25

0.1uF

C21

1uF

C21

1uF

JP11

DIFF SPKR OUT

JP11

DIFF SPKR OUT

R174

20.0K

R174

20.0K

R34

C97 1nFC97 1nF

R173 20.0KR173 20.0K

Figure 11. Audio Amplifier Schematic

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 36 37

Si2493/57/34/15/04 1
Global ISOmodem-EVB 1
LS Part Number (Si30xx) 8
SS Package 8
SS Part Number 8
SS Revision 8
RS-232, Female 19
Front View 19
Mouser Electronics 37

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Silicon Laboratories Si2457 Manual de usuario Pagina 17

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