User Manual
Table Of Contents
EHS6 Hardware Interface Overview
2.3 Sample Application
21
EHS6_HIO_v01.441 Page 21 of 38 2013-07-11
Confidential / Preliminary
Figure 6: Schematic diagram of EHS6 sample application
ON
EMERG_RST
VCORE
V180
IGT
RESET
ASC0 (including GPIO1...GPIO3 for
DSR0, DTR0, DCD0 and GPIO24 for
RING0)/SPI_CLK (for DSR0)
HSIC LPM/
GPIO16...GPIO19/
ASC1/
SPI
8
4
CCVCC
CCIO
CCCLK
CCIN
CCRST
SIM
V180
220nF
1nF
I2CCLK
I2CDAT
2.2k
V180
GPIO4 (FST_SHDN)
GPIO5 (Status LED)
GPIO6 (PWM)
GPIO7 (PWM)
GPIO8 (COUNTER)
GPIO11...GPIO15
LED
GND
GND
GND
RF OUT
BATT+
Power supply
Main Antenna
EHS6
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**
2
HSIC
Blocking**
VDDLP
PWR_IND
AUTO_ON
BATT+
53
204
GPIO20...GPIO23/
PCM (DAI)
4
Blocking**
VDDLP
100k
100k
100k
4.7k
100k
22k
2.2k
0R
3
USB