User's Manual

EHS5-E/EHS5-US Hardware Interface Overview
2.3 Sample Application
18
EHS5_HIO_v01.000 Page 18 of 35 2012-11-14
Confidential / Preliminary

Figure 6: Schematic diagram of EHS5-E/EHS5-US sample application
ON
EMERG_RST
VCORE
V180
ON
RESET
ASC0
ASC1
ASC1
ASC0
8
4
V180
CCVCC
CCIO
CCCLK
CCIN
CCRST
SIM
V180
220nF
1nF
I2CCLK
I2CDAT
2.2k
V180
FAST_SHTDWN
GPIO5 (Status LED)
GPIO6 (PWM)
GPIO7 (PWM)
GPIO8
LED
GND
GND
GND
RF OUT
BATT+
Power supply
Main Antenna
EHS5
All SIM components should be
close to card holder. Keep SIM
wires low capacitive.
*10pF
*10pF
* add optional 10pF for SIM protection
against RF (internal Antenna)
150µF,
Low ESR!
33pF
Blocking**
Blocking**
3
USBUSB
Blocking**
VDDLP
VDDLP
PWR_IND
ON2
ON2
BATT+
53
5
DAI
DAI
4
Blocking**
VDDLP
100k
100k
100k
100k
6.8k
100k
47k
10k
2.2k
** optional blocking measures
against RF interference