User's Guide

ATOP3.5G Product Description
80447ST10636A rev.10 – 2015-03-03
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 32 of 66
Mod. 0808 2011-07 Rev.2
10 Limiting values
Table 5 Power supply
Parameters mentioned in this table are indicative and taken from supplier data sheets.
Symbol Parameter Conditions Min Max Unit
V
BAT(VBAT_PA_SNK)
battery supply voltage on
pin VBAT_PA_SNK
battery voltage for RF amplifier 3.2 4.6 V
V
BAT(VBAT_SNK)
battery supply voltage on
pin VBAT_SNK
battery voltage for application processor 3.2 4.4 V
V
BAT(VBAT_MC_SNK)
battery supply voltage on
pin VBAT_MC_SNK
battery voltage for utility processor 3.1 5.5 V
V
BAT(VBAT_RTC_SNK)
battery supply voltage on
pin VBAT_RTC_SNK
battery voltage for utility processor RTC 2.1 3.25 V
V
BAT(VBAT_CHG)
battery supply voltage on
pin VBAT_CHG
charger supply voltage - 5.0 V
V
BAT(VBAT_SPKR)
battery supply voltage on
pin VBAT_SPKR
amplifier supply voltage - 5.0 V
Table 6 Microcontroller pins
Parameters mentioned in this table are indicative and taken from supplier data sheets.
Symbol Parameter Conditions Min Max Unit
V
I(a)
analog input voltage on ADC-related pins
0.5
+5.1 V
V
i
input voltage 5 V tolerant I/O pins [1][2]

0.5
+5.5 V
other I/O pins [1]
0.5
+3.6 V
input voltage for MC_XTAL1; internal
oscillator input
0 1.95 V
[1] V
BAT(VBAT_MC_SNK)
(battery voltage for utility processor) must be present.
[2] 3-state outputs go into 3-state mode when V
BAT(VBAT_MC_SNK)
(battery voltage for utility processor) is grounded.
Table 7 Cellular baseband digital interfaces
Parameters mentioned in this table are indicative and taken from supplier data sheets.
Symbol Parameter Conditions Min Max Unit
V
i
input voltage
0.5
+2.3 V
I
I
input current
100
+100 mA