nRF905
Low power Multiband Sub 1-GHz RF Transceiver ICActive
Description
The Nordic nRF905 is a highly integrated, low power, multiband RF transceiver IC for the 433/868/915MHz ISM (Industrial, Scientific and Medical) band. With an integrated +10dBm PA and sensitivity of -100dBm, the nRF905 is an ideal solution for applications requiring longer-range. The ShockBurst™ hardware protocol accelerator offloads time critical protocol functions from the application microcontroller enabling the implementation of advanced and robust wireless connectivity with low cost 3rd-party microcontrollers.
In summary, the nRF905 integrates a complete 433/868/915MHz ISM RF transceiver, RF synthesizer, and baseband logic, including the ShockBurst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. No external loop filter, resonators, or VCO varactor diodes are required, only a low cost crystal, matching circuitry, and antenna.
The nRF905 is available in a 32-pin 5 x 5mm QFN package.
Features
- Low cost single-chip 433/868/915MHz GFSK RF transceiver IC
- License-free Sub 1-GHz ISM band operation
- ShockBurst™ hardware protocol accelerator
- Low power consumption - 12.5mA RX and 30mA TX (+10dBm)
- On-air compatible with Nordic nRF9E5 RF SoC
Applications
- Alarm and security systems
- Keyless entry
- Home and Industrial automation
- RF ID
Related Products
| Product | Brief description |
| nRF9E5 | Multiband Sub 1-GHz RF System-on-Chip (SoC) |
Ordering codes
Tags
The Nordic nRF905 is a highly integrated, low cost, low power, multiband sub 1-GHz RF Transceiver IC for 433/868/915MHz ISM band operation.
Low power consumption
- 2.5µA power down mode
- 9mA Radio TX at -10dBm
- 30mA Radio TX at +10dBm
- 12.5mA Radio RX
Multiband Sub 1-GHz Radio
- License-free 433/868/915MHz ISM band operation
- GFSK modulation
- +10, 6, -2, and -10dBm programmable TX output power
- 50kbps on-air data rate
- -100dBm RX sensitivity
- Excellent co-existence performance
ShockBurst™ hardware protocol accelerator
-
Automatic packet assembly
(Preamble, Address, CRC) - Automatic packed detection and validation
Crystal oscillator
- Supports 4,8,12,16 and 20MHz crystals
MCU Interface
- SPI
Power supply
- Internal linear voltage regulator
- 1.9 to 3.6V supply range
Temperature range of -40 to +80 ºC
Package options
- 32-pin 5 x 5mm QFN
The Nordic nRF905 is supported by the following development tools and software:
| Product | Brief description |
| nRF905 Evaluation Kit | Evaluation Kit for the Nordic nRF905 Sub 1-GHz RF Transceiver IC |
Product Specificaton
| Code | Name | Version |
|---|---|---|
| nRF905-PS | nRF905 Product Specification | 1.5 |
| PCN-008 | Change of packet singulation from "Punch" to "Saw" | 1.1 |
| PCN-059 | Product Change Notification - Cu as additional bond wire option | 1.0 |
Application Note
| Code | Name | Version |
|---|---|---|
| nAN400-08 | QFN Soldering Reflow Guidelines | 1.1 |
| nAN900-04 | nRF905 RF and antenna layout | 2.1 |
White Paper
| Code | Name | Version |
|---|---|---|
| nWP-001 | Benefits of Total Integration of Large RF Circuits | |
| nWP-003 | Design-in of RF circuits | |
| nWP-005 | Introduction to wireless networks | |
| nWP-006 | nRF Performance Test Guidelines | 1.0 |
| nWP-009 | Quarterwave printed monopole antenna for 868MHz and 915MHz | |
| nWP-010 | Regulatory and Compliance Standards for RF Devices | |
| nWP-011 | Sharing crystal with a microcontroller (MCU) | 1.1 |
| nWP-015 | Crystal Oscillator Design Considerations |
Qualification Reports
| Code | Name | Version |
|---|---|---|
| nRF905-MCR | nRF905 Material Composition Report | 2011_08 |
| nRF905/9E5-HSR | nRF905/9E5 Hazardous Substance Report | 2012_01 |