User's Manual Part 2

MC75 Hardware Interface Description
Strictly confidential / Draft
s
MC75_V00.190a Page 81 of 91 15.02.2005
Rechargeable
Lithium battery
Charger
ESD
protection
NTC
2.7k
SI3441DV
0.3R
47k
100k
VCC µC
47k
EMERG_RST
PWR_IND
IGT
BATT+
VCHARGE
BATTEMP
VSENSE
ISENSE
CHARGEGATE
CCGND
CCCLK
CCIO
CCRST
CCIN
CCVCC
200nF
SIM
VMIC (2.5V)
GND AGND
MICP1
MICP2
EPN1
EPP1
EPP2
EPN2
MC75
MICN1
MICN2
1k
1k
2.2k2.2k
5.6k
100nF
100nF
22µF
Digital Audio
7
100µF
BC847
BC847
VEXT (2.9V)
SYNC
>8R
>32R
*)
depends on final specification
CRS04
All SIM components shall be close to card holder.
1nF
27pF
0R (not mounted)
V 5.2V 0.2V
ch ar ge
+
Serial Interface
ASC0
Serial Interface
ASC1
SD memory
card
*)
USB
(Slave)
*)
MC75 Application
(Draft)
*)
8
8
3
4
*)
I2C
2
2 x R
P
470R
Figure 39: MC75 sample application (draft)