Low voltage long-range ISM transceiver with embedded MCU and ADC

24 March 2004 Telecoms, Datacoms, Wireless, IoT Access Control & Identity Management

Nordic's nRF9E5 and nRF905 components are designed for wireless transceiver applications in industrial as well as domestic environments in the frequency range 430-928 MHz. Typical uses include security systems, wireless data transfer, automatic meter reading, car alarm systems, point-of-sale systems, sensors and various telemetry systems. Manufactured in modern 0,18 µm CMOS process, the entire transceiver includes all inductors and filters integrated in a single chip.

The nRF9E5 transceiver has an embedded 8051 compatible MCU, and four input 10 bit ADC - providing the market with a complete low cost wireless system-on-a-chip solution with a single 1,9 V-3,6 V supply. Voltage regulators are embedded on-chip to further lower the system cost, and to enhance performance.

Both components include the company's unique ShockBurst feature that is used in both receive and transmit mode and simplifies software and protocol design. ShockBurst includes features for CRC computation in both TX and RX mode, and address decoding in RX mode, reducing the load and cost of the MCU running the RF protocol. It is capable of buffering up to 32 bytes of payload coupled with short start-up times, which enables very low power duty cycled systems.

A crystal and a resistor are the two components needed externally to make up a complete system around the nRF905. The nRF9E5 requires an external EEPROM for external program storage. Both the components are delivered in lead-free 32 pin 5 x 5 mm QFN package.

A unique feature of the nRF9X5 family is the capability to operate with the same layout and identical external components in the unlicensed European 868 MHz ISM band as well as the North American 915 MHz SRD band, easing logistics for manufacturers who have customers in both territories.

Further reading:

Identity, Security & Access Alliance focuses on intelligence and integration
SMART Security Solutions Ideco Biometrics BoomGate Systems Bosch Building Technologies Technews Publishing Integrated Solutions Surveillance Access Control & Identity Management
The Identity, Security & Access Alliance (ISAA) hosted several launch events in Johannesburg in August, showcasing the participating companies’ technical solutions with a primary focus on the solutions made possible by integrating high-quality systems to deliver comprehensive solutions.

Read more...

---

Power amps for portable radio comms systems
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
CML Micro expands its SµRF product portfolio with a pair of high efficiency single- and two-stage power amplifiers that offer outstanding performance for a wide range of dual-cell lithium battery-powered wireless devices.

Read more...

---

RF agile transceiver
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.

Read more...

---

Choosing a GNSS receiver
RF Design Telecoms, Datacoms, Wireless, IoT
Applications requiring sub-ten-meter positioning accuracy today can choose between single-band or dual-band technology. While this decision might seem as simple as flipping a coin, it is far from that.

Read more...

---

Tri-Teq’s latest range of filters
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
Tri-Teq recently presented its latest filter products, which included passive and co-site mitigation filters (lumped element and suspended substrate technologies) and tunable filters (bandpass and harmonic switched filters).

Read more...

---

Why GNSS positioning precision is enabling the next wave of IoT applications
iCorp Technologies Editor's Choice Telecoms, Datacoms, Wireless, IoT
While high-performance GNSS implementations are achievable with few limitations, most real-world applications must balance power consumption, form factor and accuracy requirements.

Read more...

---

The evolution of 4D imaging radar
Altron Arrow Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.

Read more...

---

Links Field Networks: The perfect fit for telematics in Africa
Links Field Networks Telecoms, Datacoms, Wireless, IoT
Operating at the intersection of global SIM innovation and local market intelligence, Links Field Networks has emerged as a premier provider of telematics-oriented connectivity across Africa and beyond.

Read more...

---

RF direct conversion receiver
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The CMX994 series from CML Micro is a family of direct conversion receiver ICs with the ability to dynamically select power against performance modes.

Read more...

---

Bridging the future with RAKWireless WisNode devices
Otto Wireless Solutions Telecoms, Datacoms, Wireless, IoT
The WisNode Bridge series by RAKWireless is designed to convert traditional wired industrial protocols like RS485 and Modbus into LoRa-compatible signals.

Read more...

---