Specifications

Cinterion
®
ALAS5V Hardware Interface Description
2.1 Application Interface
67
 ALAS5V_HID_v00.030a 2019-03-20
Confidential / Preliminary
Page 26 of 124
GPIO
interface
GPIO1,
GPIO3...8,
GPIO11...17,
GPIO22
I/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
V
IL
max = 0.50V
V
IH
min = 1.30V
V
IH
max = 2.0V
I
IHPD
= 27.5µA…97.5µA
I
ILPU
= -27.5µA…-97.5µA
I
High-Z max
= ±1µA
GPIO3, GPIO5...GPIO7,
GPIO8, and GPIO16 are
interrupt enabled. They can
be used to for instance wake
up the module (see Section
2.1.12).
Following functions can be
configured for GPIOs using
AT commands:
GPIO1 --> DR_SYNC
There is a 2.2k decoupling
resistor between GPIO17
and JTAG_WD_DISABLE.
Test points recommended
for GPIO1, GPIO3.
If unused keep lines open.
However, GPIO7 and
GPIO17, must be low during
module startup until the
module has been secured in
factory.
1PPS inter-
face
GPIO1
(DR_SYNC)
O Clock signal with 1 pulse per second,
frequency 1Hz, accuracy +/- 5ms
If the feature is enabled (see
Chapter 3).
ADC
interface
ADC1_IN,
ADC2_IN,
ADC4_IN,
ADC5_IN
I Full specification compliance range
V
Imin
>=0.10V
V
Imax
<=1.70V
R
I
10M
Resolution: 14 Bit
Accuracy: < ±2mV
ADC conversion time t (max) = 550µs
at 4.8MHz sample clock
If unused keep line open.
Prepared for general pur-
pose and antenna diagnos-
tic use.
Table 4: Signal description
Function Signal name IO Signal form and level Comment
MUX,
ADC
module
1k
10n
ADCx_IN