Sierra Wireless AirPrime AR7582, Руководство по интеграции оборудования, Страница: 17 / 30

41110461XXXX Rev 0.12 January 16, 2017 17
Hardware Integration Guide Introduction
Pad Name Direction Function
BA6 GND GNSS Antenna Ground
BB4 GND GNSS Antenna Ground
BB5 GND GNSS Antenna Ground
1.4.2.1. GNSS Antenna Recommendations
To be added in a future revision.
1.5. Electrical Specifications
This section provides details of the key electrical specifications of the AirPrime AR758x Series.
1.5.1. Absolute Maximum Ratings
This section defines the Absolute Maximum Ratings of the AirPrime AR758x Series.
Warning:
If operating outside of the defined specifications, even momentarily, damage may occur to the
device.
Table 16. AirPrime AR758x Series Absolute Maximum Ratings
Parameter Min Max Units
VBATT Power Supply Input - 4.5 V
VIN Voltage on any digital input or output pin - Vxx + 20%* V
IIN Latch-up current -100 100 mA
ESD Ratings
ESD
1
Primary, Secondary and GNSS antenna pads
–
Contact
-
± 8 kV
All other signal pads
– Contact
- ± 1.5 kV
1 The ESD Simulator configured with 150pF, 330
Ω.
Caution: Vxx is the supply voltage associated with the input or output pin to which the test voltage is applied.
1.5.2. Digital IO Characteristics
The Digital IO characteristics are defined in the table below. These apply to GPIOs, UART, LED, SPI,
I2C, PCM/I2S, GNSS_LNA, WAKE_N, 2G_SYNC, AT_PORT_SW, SERVICE and RESET.
Table 17. Digital IO Characteristics for HSIC VDD=1.2V Nominal
Parameter Comments Min Typ Max Units
V
IH
High level input voltage CMOS/Schmitt 0.78
–
1.44 V