Globalstar ST150M User Manual page 28

9150-0125-01 R-1
PIN
P0.16
P1.15
P1.12
P0.31/AIN7 Digital I/O / Analog input
P0.05/AIN3 Digital I/O / Analog input
GPS_RF_IN
GND4
P0.04/AIN2 Digital I/O /Analog input
GND3
TX_OUT
GND5
P0.29/AIN5 Digital I/O / Analog input
P0.30/AIN6 Digital I/O / Analog input
P0.28/AIN4 Digital I/O / Analog input
P0.03/AIN1 Digital I/O / Analog input
P0.02/AIN0 Digital I/O / Analog input
USB_D-
USB_D+
VUSB
GPS_EXT_
LNA_EN
VRF_EN
I2C_SDA
I2C_CLK
ST150M User Manual
FUNCTION
Digital I/O
Digital I/O
Digital I/O
RF
Power
Power
RF
Power
USB Differential USB data connection
USB
Differential USB data connection
Power
Digital Output
Signal for indicating ASIC trans-
Digital Output
Digital I/O
Digital Output
DESCRIPTION
GPIO
GPIO
GPIO
GPIO / Analog input
GPIO / Analog input
Single-ended GPS antenna
connection
Ground
GPIO / Analog input
Ground
Single-ended ASIC antenna
connection
Ground
GPIO / Analog input
GPIO / Analog input
GPIO / Analog input
GPIO / Analog input
GPIO / Analog input
USB device +5V input
Control signal for external GPS
LNA
mission
I2C serial data
I2C serial clock
Confidential & Proprietary Information
RECOMMENDED USAGE
3.3V level
3.3V level, Standard drive, low frequency I/O only
3.3V level, Standard drive, low frequency I/O only
3.3V level, Standard drive, low frequency I/O only
3.3V level
–
–
3.3V level
–
–
–
3.3V level, Standard drive, low frequency I/O only
3.3V level, Standard drive, low frequency I/O only
3.3V level, Standard drive, low frequency I/O
3.3V level, Standard drive, low frequency I/O only
3.3V level, Standard drive, low frequency I/O only
–
–
–
3.3V level
3V level
3.3V level
3.3V level
only
20