AHDB7394

Description

AHDB7394 is world's leading WiFi HaLow™ Daughter Board Module

The AHDB7394 allows building long range, ultra-low power WiFi networks in sub 1 GHz license-exempt bands, utilizing compact form factor.
The AHDB7394 data rate up to 15 Mbps which better than LoRa 38.4 Kbps with the high-speed data rate, it enables connectivity for many IoT applications, including sensors, weather stations, industrial monitoring, medical patient monitoring, smart agriculture monitoring, surveillance camera, smart city.

Key Features

NEWRACOM NRC7394 HaLow chipset
Up to 15Mbps data rate
HaLow IPEX-1/U.FL antenna connector
SPI and UART support for host interface

Specifications

Chipset	NEWRACOM NRC7394
Frequency	915 MHz (US) 868 MHz (EU) 924 MHz (JP)
Modulation	OFDM with BPSK, QPSK, 16QAM, 64QAM
Date rate	Up to 15 Mbps (Max. Phy rate)
Channel bandwidth	1/2/4 MHz (US) 1 MHz (EU) 1/2/4 MHz (JP)
Antenna connector	HaLow IPEX-1/U.FL antenna connector
Host interface	SPI, UART
Form factor	Daughter Board Module
Dimensions	33.0(L) × 20.75(W) mm (non-Includes pin header)
Operating temperature	-40°C to +85°C (-40°F to 185°F)
Software & SDK	https://github.com/newracom

Order Information

AHSM7394S-915 AHSM7394S-868 AHSM7394S-924

902 MHz – 928 MHz

863 MHz – 868 MHz

920.5 – 927.5 MHz

26 MHz

5 MHz

7 MHz

Pin Definition - Pin Description

AHDB7394
Pin No.	Definition	Pin No.	Definition
Pin 1	SPI_MOSI	Pin 2	MODE
Pin 3	SPI_CLK	Pin 4	RESET_N (Active Low)
Pin 5	SPI_CSN (Active Low)	Pin 6	GPIO 10 (output: Active Low)
Pin 7	SPI_MISO	Pin 8	GND
Pin 9	SPI_IRQ (Active High)	Pin 10	UART_TX (module side)
Pin 11	VDD_3.3V	Pin 12	UART_RX (module side)

MODE (Pin 2) (GPIO control by Host)	NRC7394 mode	Interface	Pin 10,12 (UART)	Note
Low (Floating)	Standalone mode	UART1	UART1	Factory Default
High (3.3V)		UART0 (System Console)	UART0 (System Console)	Firmware Upload
High (3.3V)	Host mode	SPI

AHDB7394
Pin No.	Definition	Pin No.	Definition
Pin 1	SPI_MOSI	Pin 2	MODE
Pin 3	SPI_CLK	Pin 4	RESET_N (Active Low)
Pin 5	SPI_CSN (Active Low)	Pin 6	GPIO 10 (output: Active Low)
Pin 7	SPI_MISO	Pin 8	GND
Pin 9	SPI_IRQ (Active High)	Pin 10	UART_TX (module side)
Pin 11	VDD_3.3V	Pin 12	UART_RX (module side)

MODE (Pin 2) (GPIO control by Host)	NRC7394 mode	Interface	Pi 10,12 (UART)	Note
Low (Floating)	Standalone mode	UART1	UART1	Factory Default
High (3.3V)	Download mode	UART0 (System Console)	UART0 (System Console)	Firmware Upload
High (3.3V)	Host mode	SPI

RF Specifications

TX Output Power (US)
Bandwidth 1, 2 MHz	Min (dBm)	Typical (dBm)	Max (dBm)
MCS 0	15.5	17	18.5
MCS 7	11.5	13	14.5
Bandwidth 4 MHz	Min (dBm)	Typical (dBm)	Max (dBm)
MCS 0	15.5	17	18.5
MCS 7	11.5	13	14.5

RX Sensitivity
MCS index	Modulation scheme	Coding rate	Phy rate (kbps) per BW			Minimum receive sensitivity (dBm) per BW
MCS index	Modulation scheme	Coding rate	1 MHz	2 MHz	4 MHz	1 MHz	2 MHz	4 MHz
0	BPSK	1/2	333	722	1500	-95	-92	-89
1	QPSK	1/2	667	1444	3000	-92	-89	-86
2	QPSK	3/4	1000	2167	4500	-90	-87	-84
3	16-QAM	1/2	1333	2889	6000	-87	-84	-81
4	16-QAM	3/4	2000	4333	9000	-83	-80	-77
5	64-QAM	2/3	2667	5778	12000	-79	-76	-73
6	64-QAM	3/4	3000	6500	13500	-78	-75	-72
7	64-QAM	5/6	3333	7222	15000	-77	-74	-71
10	BPSK	1/2 x 2	167	N/A		-98	N/A

Reference Design

Mechanical Information

AIA-AHDB7394 Antenna Specifications

Frequency	863 – 868 MHz 902 – 928 MHz
Gain	0 dBi @ 863 – 868 MHz 0 dBi @ 902 – 928 MHz
V.S.W.R	2:1 (863 – 868 MHz) 2:1 (902 – 928 MHz)
Radiation	Omni
Connector	MHF-I (IPEX/U.FL antenna connector)
Polarization	Linear
Impedance	50 Ω
Maximum input power	1 W
Material	FR4
Dimensions	90 x 20 mm
Operating temperature	-40°F ~ 158°F (-40°C ~ 70°C)