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Hardware Integration Guide
Mode
Idle – LTE
Sleep Mode
Off
GNSS
1 This is the additional current draw on VBATT for 10mA consumption by Active LNA from VGNSS_ANT. Higher current
consumption by the antenna will result in higher consumption on VBATT.
5.5.
Digital IO Characteristics
The Digital IO characteristics are defined in the table below. These apply to GPIOs, UART, LED,
SDIO and PCM/I2S.
Table 27.
Digital IO Characteristics
Parameter
High level input
V
IH
voltage
Low level input
V
IL
voltage
High level
V
OH
output voltage
Low-level output
V
OL
voltage
High level
I
OH
output current
Low Level
I
OL
output current
High level
I
OH-LED
output current
Low Level
I
OL-LED
output current
Input high
I
IHPD
leakage current
Input low
I
ILPU
leakage current
Input leakage
IL
current
Input
C
IN
capacitance
4116922
Parameter
USB Enumerated
Registered
USB Not Enumerated
Searching for network – LTE
Average current, QPCH, SCI=2
Average current, WCDMA, DRX=8
Average current, LTE
Power OFF Current
Acquisition (Airplane mode, cold start)
Tracking (Registered)
Powering an Active Antenna from VGNSS_ANT
Comments
CMOS/Schmitt
CMOS/Schmitt
CMOS, at pin rated drive
strength
CMOS, at pin rated drive
strength
VOH = VCC_1V8 – 0.45
V
VOL = 0.45 V
LED signal only
LED signal only
With pull-down
With pull-up
VIO = max,
VIN = 0 V to VIO
LED signal only
Rev 1.1
Typical
tbd
tbd
tbd
-
-
-
tbd
tbd
tbd
Min
Typ
–
0.65* VCC_1V8
–
-0.3
–
VCC_1V8 - 0.45
–
0
–
–
–
-6
–
–
–
-3
5
-30
–
-0.3
–
–
GNSS Specification
Max
Units
-
mA
-
mA
-
mA
tbd
mA
tbd
mA
tbd
mA
μA
tbd
mA
mA
tbd
mA
Max
Units
VCC_1V8+0.3
V
0.35* VCC_1V8
V
VCC_1V8
V
0.45
V
6
mA
–
mA
–
mA
20
mA
30
µA
-5
µA
+0.35
µA
7
pF
January 21, 2015
28
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