Quectel L76 Series Reference Design
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Quectel L76 Series Reference Design

Gnss module
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Table of Contents

L76 Series
Reference Design
GNSS Module Series
Rev. B
Date: 2016-05-17
www.quectel.com

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Summary of Contents for Quectel L76 Series

  • Page 1 L76 Series Reference Design GNSS Module Series Rev. B Date: 2016-05-17 www.quectel.com...

  • Page 2: General Notes

    QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION.

  • Page 3: About The Document

    GNSS Module Series L76 Series Reference Design About the Document History Revision Date Author Description 2016-04-26 Storm BAO Initial 2016-05-17 Storm BAO Added I2C information of L76-L L76_Series_Reference_Design Confidential / Released 2 / 4...
  • Page 4 GNSS Module Series L76 Series Reference Design Contents About the Document ........................... 2 Contents ............................... 3 Introduction ............................4 1.1. Introduction ..........................4 1.2. Schematics ..........................4 L76_Series_Reference_Design Confidential / Released 3 / 4...
  • Page 5 GNSS Module Series L76 Series Reference Design Introduction 1.1. Introduction This document is a reference design for L76 series module. The schematics included in this document are preliminary and are subject to change without prior notice. 1.2. Schematics L76_Series_Reference_Design Confidential / Released...
  • Page 6 Generally, 100R for R102 and R103 is recommended, but 0R also works well. mode from full on mode. As long as the VCC pin is powered, the module will enter into full on mode immediately. Here, Q101, Q102, R101 are mounted; R104 and R106 are not mounted. Quectel Wireless Solutions PROJECT TITLE...
  • Page 7 R201 R202 R203 R205 4.7K R204 4.7K 4.7K 4.7K 4.7K TXD_MCU RXD1_MODULE TXD1_MODULE RXD_MCU Q201 Q202 Quectel Wireless Solutions PROJECT TITLE DRAWN BY Storm BAO L76 Series Reference Design SIZE CHECKED BY Tony GAO SHEET DATE 2016/5/17...

  • Page 8: Module Interface

    1. UART1 can be used to output NMEA message as well as to upgrade firmware. 2. For L76-L, pin16 and pin17 are I2C_SDA and I2C_SCL, respectively . V_BCKP is designed to supply power for L76 series RTC For L76/L76B, pin16 and 17 are reserved,and please keep them open.

  • Page 9: Antenna Interface

    3. The voltage level of ANTON will be pulled down in standby mode. 47nH R402 SI2333 4. If the L76 series module never enter into standby mode in the design, the ANTON pin should be kept floated. ANTON Q402 5. Impedance of RF trace should be controlled as 50 ohm and the trace length DTC143ZEBTL should be kept as short as possible.

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