Electrical
Connector Pinout
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Absolute Maximum Ratings
Exposure to stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to the Absolute Maximum Ratings for extended periods may affect device reliability and lifetime. Absolute Maximum Ratings are stress ratings only and do not imply functional operation of the device under any conditions beyond those listed in Recommended Operating Conditions.
| Pin | Specification | Notes | Min | Max | Units |
|---|---|---|---|---|---|
| Vpri | Input Voltage | Protected against ESD* and other high-voltage / low-energy transients. | -0.3 | 17 | V |
| Vaux | -0.3 | 17 | V | ||
| RS-232 Tx | Input Voltage | -15 | 15 | V | |
| RS-232 Rx | -25 | 25 | V | ||
| USB D- | Input Voltage | -0.3 | 7 | V | |
| USB D+ | -0.3 | 7 | V |
*Test standard: EN-61000-4-2: 2009
Recommended Operating Condition
Stresses beyond the limits in Recommended Operating Conditions will likely result in the improper functioning of the device. The voltages in Recommended Operating Conditions represent voltages as measured at the pins; they do not account for voltage drops in the cable.
| Pin | Specification | Notes | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Vpri | Input Voltage Range | 4.2 | 16 | V | ||
| Vaux | Input Voltage Range | 4.2 | 16 | V | ||
| USB D- | Input Voltage | 0 | 5.5 | V | ||
| USB D+ | 0 | 5.5 | V |
Power Requirements
The 3DM-RTK can be powered through either the Vpri or Vaux pin.
| Specification | Notes | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Power Consumption @ 5V | 0.8 | 1.125 | W |
Electrical Characteristics
| Pin | Specification | Notes | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| RS-232 Tx | Output High | 5 | 6.2 | V | ||
| Output Low | -5 | -5.7 | V | |||
| RS-232 Rx | Input High Threshold | 1.7 | 2.5 | V | ||
| Input Low Threshold | 0.8 | 1.3 | V |