L76KB-A58
GNSS ModuleThe L76KB-A58 is a gnss module from Quectel. View the full L76KB-A58 datasheet below including pinout, absolute maximum ratings.
Manufacturer
Quectel
Category
GNSS Module
Package
SMD,10.1x9.7mm
Overview
Part: Quectel L76 Series (L76, L76B)
Type: GNSS Module
Description: Quectel L76 series are GNSS modules operating from 2.8–4.3 V, featuring -165 dBm tracking sensitivity and supporting various power saving modes.
Operating Conditions:
- Supply voltage (VCC): 2.8–4.3 V
- Supply voltage (V_BCKP): 2.0–4.3 V
- Operating temperature: -40 to +85 °C
Absolute Maximum Ratings:
- Max supply voltage (VCC): 4.5 V
- Max supply voltage (V_BCKP): 4.5 V
- Max storage temperature: -40 to +90 °C
Key Specs:
- VCC Supply Voltage Range: 2.8 V to 4.3 V
- V_BCKP Supply Voltage Range: 2.0 V to 4.3 V
- Operating Temperature Range: -40 °C to +85 °C
- Tracking Sensitivity: -165 dBm
- Current Consumption (Full On Mode): Typ. 25 mA
- Current Consumption (Standby Mode): Typ. 1.5 mA
- Current Consumption (Backup Mode): Typ. 15 μA
- Interface: UART
Features:
- EASY™ (Embedded Assist System)
- AGNSS (Assisted GNSS)
- LOCUS (Log data into internal Flash)
- AlwaysLocate™
- Multi-tone Active Interference Cancellation
- Antenna detection and protection
- Supports various power saving modes
Applications:
Package:
- Module (28-pin)
Features
Table 2: Feature
| Feature | Implementation |
|---|---|
| GNSS | GPS+GLONASS @L76 GPS+BeiDou @L76B |
| Power Supply | Supply voltage: 2.8V~4.3V typical: 3.3V |
| Power Consumption | Acquisition: 21mA @-130dBm (GPS) Tracking: 15mA @-130dBm (GPS) Acquisition: 25mA @-130dBm (GPS+GLONASS) Tracking: 18mA @-130dBm (GPS+GLONASS) Acquisition: 23mA @-130dBm (GPS+BeiDou) Tracking: 18mA @-130dBm (GPS+BeiDou) Quectel |
| Receiver Type | GPS L1 1575.42MHz C/A Code GLONASS L1 1598.0625~1605.375 C/A Code BeiDou B1 1561.098MHz C/A Code Confidential |
| Sensitivity GPS+GLONASS (NOTE) | Acquisition: -148dBm Reacquisition: -160dBm Tracking: -165dBm |
| Sensitivity GPS+BeiDou (NOTE) | Acquisition: -148dBm Reacquisition: -160dBm Tracking: -163dBm |
| Time-To-First-Fix (EASY Enabled) | Cold Start: <15s average @-130dBm Warm Start: <5s average @-130dBm Hot Start: 1s @-130dBm |
| Time-To-First-Fix (EASY Disabled) | Cold Start (Autonomous): <35s average @-130dBm Warm Start (Autonomous): <30s average @-130dBm Hot Start (Autonomous): 1s @-130dBm |
| Horizontal Position Accuracy (Autonomous) | <2.5 mCEP@-130dBm |
| Update Rate | Up to 10Hz, 1Hz by default |
| Accuracy of 1PPS Signal | Typical accuracy <15ns (Not support timeservice) Time pulse width 100ms |
| Velocity Accuracy | Without aid: 0.1m/s |
| Acceleration Accuracy | Without aid: 0.1m/s² |
| Dynamic Performance | Maximum Altitude: 18,000m Maximum Velocity: 515m/s Maximum Acceleration: 4G |
Table 2: Feature
| UART Port | UART port: TXD1 and RXD1 Supports baud rate from 4800bps to 115200bps, 9600bps by default UART Port is used for NMEA output, MTK proprietary messages input and firmware upgrade |
|---|---|
| Temperature Range | Normal operation: -45° C ~ +85° C Storage temperature: -45° C ~ +125° C |
| Physical Characteristics | Size: 10.1± 0.15 ×9.7± 0.15 ×2.5± 0.15mm Weight: Approx. 0.6g |
Pin Configuration
L76KB-A58 Pinout
Package: SMD, 10.1×9.7 mm (18-pin)
| Pin Number | Pin Name | Type | Description |
|---|---|---|---|
| 1 | GND | P | Ground |
| 2 | TXD1 | O | UART1 Transmit Data |
| 3 | RXD1 | I | UART1 Receive Data |
| 4 | 1PPS | O | 1 Pulse Per Second Output |
| 5 | STANDBY | I | Standby Mode Control |
| 6 | V_BCKP | P | Backup Power Supply |
| 7 | NC | – | No Connect |
| 8 | VCC | P | Main Power Supply (+3.3V) |
| 9 | RESET | I | Reset Input |
| 10 | GND | P | Ground |
| 11 | RF_IN | I | RF Input (Antenna) |
| 12 | GND | P | Ground |
| 13 | ANTON | I | Antenna Control |
| 14 | VCC_RF | P | RF Power Supply |
| 15 | NC | – | No Connect |
| 16 | RESERVED | – | Reserved (Do Not Connect) |
| 17 | RESERVED | – | Reserved (Do Not Connect) |
| 18 | FORCE_ON | I | Force On Control |
Notes
- Power pins (VCC, V_BCKP, VCC_RF, GND): Multiple ground pins (1, 10, 12, 18) and power pins must all be properly connected.
- RESERVED pins (16, 17): Must not be connected; reserved for future use.
- NC pins (7, 15): No Connect pins; leave unconnected.
- RF_IN (pin 11): Requires proper antenna matching and RF filtering.
- 1PPS (pin 4): Provides 1 Hz timing reference output when GPS lock is achieved.
Absolute Maximum Ratings
Absolute maximum rating for power supply and voltage on digital pins of the module are listed in following table.
| Parameter | Min. | Max. | Unit |
|---|---|---|---|
| Power Supply Voltage (VCC) | -0.3 | 4.5 | V |
| Backup Battery Voltage (V_BCKP) | -0.3 | 4.5 | V |
| Input Voltage at Digital Pins | -0.3 | 3.6 | V |
| Input Power at RF_IN (PRF_IN) | 15 | dBm | |
| Storage Temperature | -45 | 125 | ° C |
Table 9: Absolute Maximum Ratings Stressing the device beyond the 'Absolute Maximum Ratings' may cause permanent damage. These are stress ratings only. The product is not protected against over voltage or reversed voltage. If necessary, voltage spikes exceeding the power supply voltage specification, given in table above, must be limited to values within the specified boundaries by using appropriate protection diodes. NOTE Confidential
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