Appendix - Sony Ericsson Speakerphone/car kit hands free design Application Note

APPENDIX

12V in
100uF
5V
AGND
AFMS
10k
LZT 123 7895 R1A
Speakerphone/car kit hands free design
1k5 4k7
Fb
Cb
LM2676
Vin
10nF
-ADJ
Vsw
GND
30BQ040
MAX4295
PVcc
PGND
OSC
Vcc
-
GND
+
Aout
47k
Ain
-
+
Figure 1 - Speaker Driver (2 Watt)
33uH
1000uF 10nF
OUT+
OUT-
5V
9