Supported Lora Module

RAK5146 is an LPWAN Concentrator Module with mini-PCIe form factor based on Semtech SX1303 and SX126X for Listen Before Talk feature, which enables easy integration with Mixtile Edge 2.

Specifications

Physical map

Physical_map

Block diagram

The RAK5146 concentrator is equipped with one SX1303 chip and two SX1250. The first chip is utilized for the RF signal and the core of the device, while the latter provides the related LoRa modem and processing functionalities. Block_diagram

Interfaces

  • Power Supply: 3.3Vaux
  • SPI
  • USB
  • UART
  • I2C
  • GPS_PPS
  • RESET
  • Antenna RF Interface

Pinout diagram

Pinout_diagram

Pinout description

Type Description
IO Bidirectional
DI Digital input
DO Digital output
OC Open collector
OD Open drain
PI Power input
PO Power output
NC No connection
Pin No. mPCIe Pin Rev. 2.0 RAK5146 Pin Type Description Remarks
1 WAKE# SX1261_BUSY DO No connection by default Reserved for future applications
2 3.3Vaux 3V3 PI 3.3V DC supply
3 COEX1 SX1261_DIO1 IO No connection by default Reserved for future applications
4 GND GND Ground
5 COEX2 SX1261_DIO2 IO No connection by default Reserved for future applications
6 1.5V GPIO(6) IO No connection by default Connect to the SX1302’s GPIO(6)
7 CLKREQ# SX1261_NSS DI No connection by default Reserved for future applications
8 UIM_PWR NC No connection
9 GND GND Ground
10 UIM_DATA NC No connection
11 REFCLK- SX1261_NRESET DI No connection by default Reserved for future application
12 UIM_CLK NC No connection
13 REFCLK+ MCU_NRESET DI RESET signal for MCU of RAK5146-USB Active low
14 UIM_RESET NC No connection
15 GND GND Ground
16 UIM_VPP NC No connection
17 RESERVED NC No connection
18 GND GND Ground
19 RESERVED PPS DO Time pulse output Leave open if not in use
20 W_DISABLE# NC No connection
21 GND GND Ground
22 PERST# SX1303_RESET DI RAK5146-SPI reset input Active high, ≥100ns for SX1302 reset
23 PERn0 RESET_GPS DI GSP module ZOE-M8Q reset input Active low, leave open if not in use
24 3.3Vaux 3v3 PI 3.3V DC supply
25 PERp0 STANDBY_GPS DI GPS module ZOE-M8Q external interrupt input Active low, leave open if not in use
26 GND GND Ground
27 GND GND Ground
28 1.5V GPIO(8) Connect to the SX1303’s GPIO(8)
29 GND GND Ground
30 SMB_CLK I2C_SCL IO HOST SCL Connect to GPS module ZOE-M8Q’s SCL internally, leave open if not in use
31 PETn0 PI_UART_TX DI HOST UART_TX Connect to GPS module ZOE-M8Q’s UART_RT internally, leave open if not in use
32 SMB_DATA I2C_SDA IO HOST SDA Connect to GPS module ZOE-M8Q’s SDA internally, leave open if not in use
33 PETp0 PI_UART_RX DO HOST UART_RX ` Connect to GPS module ZOE-M8Q’s UART_TX internally, leave open if not in use
34 GND GND Ground
35 GND GND Ground
36 USB_D- USB_DM IO USB differential data (-) Require differential impedance of 90Ω
37 GND GND Ground
38 USB_D+ USB_DP IO USB differential data (+) Require differential impedance of 90Ω
39 3.3Vaux 3V3 PI 3.3V DC supply
40 GND GND Ground
41 3.3Vaux 3V3 Pi 3.3V DC supply
42 LED_WWAN# NC No connection
43 GND GND Ground
44 LED_WLAN# NC No connection
45 RESERVED HOST_SCK IO Host SPI SCK
46 LED_WPAN# NC No connection
47 RESERVED HOST_MISO IO Host SPI MISO
48 1.5V NC No connection
49 RESERVED HOST_MOSI IO Host SPI MOSI
50 GND GND Ground
51 RESERVED HOST_CSN IO Host SPI CSN
52 3.3Vaux 3V3 PI 3.3V DC supply

Electrical Requirements

Stressing the device above one or more of the ratings listed in the Absolute Maximum Rating section may cause permanent damage. These are stress ratings only. Operating the module at these or any conditions other than those specified in the Operating Conditions sections of the specification should be avoided. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.

The operating condition range defines those limits within which the functionality of the device is guaranteed. Where application information is given, it is advisory only and does not form part of the specification.

Absolute Maximum Rating

The limiting values given below are following the Absolute Maximum Rating System (IEC 134).

Symbol Description Condition Min Max
3.3Vaux Module supply voltage Input DC voltage at 3.3Vaux pins -0.3 V 3.6 V
USB USB D+/D- pins Input DC voltage at USB interface pins 3.6 V
RESET RAK5146 reset input Input DC voltage at RESET input pin -0.3 V 3.6 V
SPI SPI interface Input DC voltage at SPI interface pin -0.3 V 3.6 V
GPS_PPS GPS 1 PPS input Input DC voltage at GPS_PPS input pin -0.3 V 3.6 V
Rho_ANT Antenna ruggedness Output RF load mismatch ruggedness at ANT1 10:1 VSWR
Tstg Storage temperature -40 °C 85 °C
Maximum ESD
Parameter Min Typical Max Remarks
ESD_HBM 1000 V Charged Device Model JESD22-C101 CLASS III
ESD_CDM 1000 V Charged Device Model JESD22-C101 CLASS III
Power Consumption
Mode Condition Min Typical Max
Active Mode (TX) The power of the TX channel is 27 dBm and 3.3 V supply. 511 mA 512 mA 513 mA
Active Mode (RX) TX disabled and RX enabled. 70 mA 81.6 mA 101 mA
Power Supply Range

Input voltage at 3.3Vaux must be above the normal operating range minimum limit to switch on the module.

Symbol Parameter Min Typical Max
3.3Vaux Module supply operating input voltage 3 V 3.3 V 3.6 V

Mechanical Characteristics

The board weighs 16.3 grams, it is 30 mm wide and 50.96 mm tall. The dimensions of the module fall completely within the PCI Express Mini Card Electromechanical Specification, except for the card’s thickness (5.5 mm at its thickest).