Gemalto M2M GmbH EHS6-A 사용자 설명서

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Cinterion
®
 EHS6-A Hardware Interface Overview 
Page 25 of 41
 
 
EHS6-A_HIO_v02.770 
2014-08-13
 
Confidential / Preliminary
 
Please note that throughout the document BATT+ refers to both voltage domains and power 
supply lines - BATT+
BB
 and BATT+
RF
The power supply of EHS6-A has to be a single voltage source at BATT+
BB
 and BATT+
RF
. It 
must be able to provide the peak current during the uplink transmission.  
All the key functions for supplying power to the device are handled by the power management 
section of the analog controller. This IC provides the following features: 
•  Stabilizes the supply voltages for the baseband using low drop linear voltage regulators 
and a DC-DC step down switching regulator. 
•  Switches the module's power voltages for the power-up and -down procedures. 
•  SIM switch to provide SIM power supply.