User's Manual

AHS3-W Hardware Interface Overview
7 Sample Application
36
AHS3-W_HIO_v02.540a Page 36 of 41 2012-09-05
Confidential / Preliminary
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Figure 10: AHS3-W sample application
47k
100k
VCC µC
47k
EMERG_RST
PWR_IND
CCCLK
CCRST
CCIN
220nF
AGND
EPP
1k
1k
BC847
BC847
1nF
AHS3
2
2
2
2
470R
8
FB*
FB*
FB*
Level
Controller
8
VEXT (1.8V)
1µF
1µF
V
CCB
V
CCA
VCC µC
VDD
(1.8V)
100µF
...220µF
ultra low ESR
ANT_DRX
ANT_GSM
ANT_GPS
Current
limiter
<60mA
VGPS
OE
VDDLP
10µF