Specifications

Cinterion
®
EHS5-E/EHS5-USR4 Hardware Interface Overview
2.3 Sample Application
28
 ehs5_hio_v04.000 2019-01-16
Confidential / Preliminary
Page 28 of 46
Figure 12: Schematic diagram of EHS5-E/EHS5-USR4 sample application
AUTO_ON / ON
EMERG_RST
VCORE
V180
RESET
ASC0 (including GPIO1...GPIO3 for
DSR0, DTR0, DCD0 and GPIO24 for
RING0)/SPI_CLK (for DSR0)
ASC1/
GPIO16...GPIO19/
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)
LED
GND
GND
GND
RF OUT
BATT+
RF
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)
150礔 ,
Low ESR!
33pF
Blocking**
Blocking**
Blocking**
VDDLP
PWR_IND
BATT+
BB
53
5
GPIO20...GPIO23/
PCM (DAI)
4
Blocking**
VDDLP
100k
100k
4.7k
100k
22k
2.2k
3
USB
33pF