Flexible 3G transmit system for mobile devices
5 March 2008
Telecoms, Datacoms, Wireless, IoT
RF Micro Devices has announced the availability of the RF6280 3G transmit system, a flexible 3G multimode solution designed to simplify and accelerate implementation of multiband and multimode 3G handsets and mobile device platforms.
The system supports all major WCDMA frequency bands and is comprised of a front end power management IC optimised for use with either one or both of two available power amplifier (PA) options: the RF6281 and/or the RF6285. The RF6281 is a dedicated single-band power amplifier module (supporting Band I), and the RF6285 is a flexible dual-path, multiband power amplifier module (capable of supporting Bands I, II, III, IV, V, VI, VIII, IX). The centrepiece of the system is the RF6280 front end power management IC, which combines a low-noise, high efficiency DC to DC converter with embedded hardware control algorithms to enable high efficiency, enhanced performance and ease of use.
The RF6280 utilises analog bias control and patent-pending DC to DC conversion technologies to intelligently and dynamically control PA operating conditions. Enabling mode-optimised PA efficiency and linearity performance, the RF6280 also ensures maximum efficiency across all power levels, data rates (voice-only to HSPA) and non-ideal load conditions (also known as 'antenna mismatch'). This helps extend battery life and significantly reduces average thermal dissipation, both of which are critical metrics for device manufacturers.
By leveraging the broadband characteristics of the dual-band RF6285, RFMD's 3G transmit system greatly simplifies the implementation of multimode, multiregion 3G handset platforms. In addition, by leveraging a balanced (quadrature) PA architecture, the 3G transmit system provides improved total radiated power (TRP) and specific absorption rate (SAR) performance, eliminating the need for costly RF isolators and simplifying multiband platform implementation.
Further reading:
Wi-Fi 6 and Bluetooth LE co-processor
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released its ST67W611M1, a low-power Wi-Fi 6 and Bluetooth LE combo co-processor module.
Read more...
Improving accuracy of outdoor devices
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
In a real-world environment, accessing a direct satellite signal is not always possible, and it cannot be relied upon as the only solution to provide a device with accurate location at all times.
Read more...
New 3dB hybrid couplers
Electrocomp
Telecoms, Datacoms, Wireless, IoT
Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance compatible with automated assembly.
Read more...
Next-level Software Defined Radio
IOT Electronics
Telecoms, Datacoms, Wireless, IoT
Great Scott Gadgets has announced the HackRF Pro, a powerful evolution of its popular Software Defined Radio (SDR) platform designed for engineers and enthusiasts.
Read more...
High-performance Zigbee and BLE module
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The KCMA32S from Quectel boasts an ARM Cortex-M33 processor with a frequency of up to 80 MHz, and supports Zigbee 3.0, BLE 5.3 and BLE mesh.
Read more...
Championing local PCB manufacturing
Master Circuits
Telecoms, Datacoms, Wireless, IoT
Master Circuits, founded in 1994 by Peter Frankish in Durban, was born from the vision to meet the growing local demand for quick-turnaround printed circuit boards in South Africa.
Read more...
How IoT-driven smart data helps businesses stay ahead
Trinity IoT
Telecoms, Datacoms, Wireless, IoT
With around 19 billion IoT devices globally, embedded in everything from machinery to vehicles to consumer products, reliable data is plentiful.
Read more...
IoT-optimised LTE Cat 1 bis module
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Quectel’s EG915K-EU is an LTE Cat 1 bis wireless communication module specially designed for M2M and IoT applications.
Read more...
Chip provides concurrent dual connectivity
EBV Electrolink
Telecoms, Datacoms, Wireless, IoT
The IW693 from NXP is a 2x2 dual-band, highly integrated device that provides concurrent dual Wi-Fi 6E + Wi-Fi 6 and Bluetooth connectivity, supporting four different modes.
Read more...
The 6 GHz band radio solution
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Analog Devices’ 16 nm transceiver family offers a highly integrated solution for this new frequency band, featuring low power consumption and high performance.
Read more...