Specifications

Table Of Contents
Cinterion
®
ALAS5V Hardware Interface Description
2.1 Application Interface
67
ALAS5V_HID_v00.030a 2019-03-20
Confidential / Preliminary
Page 21 of 124
2.1.2 Signal Properties
Please note that the reference voltages listed in Table 4 are the values measured directly on
the ALAS5V module. They do not apply to the accessories connected.
Table 4: Signal description
Function Signal name IO Signal form and level Comment
Power sup-
ply
BATT+
BATT+_RF
IV
I
max = 4.2V
V
I
min = 3.3V (on board)
Supply voltage lines for gen-
eral power management and
the RF power amplifier.
Lines of BATT+/BATT+_RF
and GND respectively must
be connected in parallel for
supply purposes because
higher peak currents may
occur.
Minimum voltage must not
fall below 3.3V including
drop, ripple, spikes.
n Tx = n x 577µs peak current every
4.615ms
Imax = see Table 25
WCDMA TX continuous current
Imax = see Table 25
LTE TX continuous current
Imax = see Table 25
GND Ground Application Ground
External
supply volt-
age
VEXT O C
L
max = 1µF
V
O
= 1.80V -2.4%, +2%
Normal operation:
I
O
max = -50mA
SLEEP mode operation:
I
O
max = -1mA
VEXT may be used for appli-
cation circuits.
If unused keep line open.
Test point recommended.
The external digital logic
must not cause any spikes
or glitches on voltage VEXT.
Do not exceed I
O
max in any
operation mode.
Supply volt-
age for
active
GNSS
antenna
(Input)
ANT_GNSS_
DC
IV
I
max = 5V
Imax = 50mA
If unused connect to GND.
The input current must be
limited to 50mA (antenna
short circuit protection).
External
GNSS sup-
ply voltage
enable
(output)
GNSS_EN O V
OL
max = 0.45V at I = 2mA
V
OL
nom = 0.1V at I = 100µA
V
OH
min = 1.30V at I = -2mA
V
OH
nom = 1.65V at I = -100µA
V
OH
max = 1.84V
Enable signal for an external
voltage regulator (intended
for active GNSS antenna,
high=active).
No external pull-up allowed
during startup until the mod-
ule has been secured in fac-
tory.