Telecoms, Datacoms, Wireless, IoT


Wideband digital transmit processor

29 April 2009 Telecoms, Datacoms, Wireless, IoT

Texas Instruments has introduced a new single-chip wideband digital pre-distortion transmit processor that enables OEMs to improve power efficiency and ultimately reduce the overall power consumed by wireless basestations.

The GC5325 combines a crest factor reduction block (CFR) and a digital pre-distortion block (DPD) to improve power amplifier (PA) efficiencies to more than 25% for Class AB PAs and more than 40% for Doherty PAs. The flexible device supports multiple PA architectures, multimode operation, and various air interface standards including CDMA2000, WCDMA, TD-SCDMA, OFDMA (WiMAX, LTE), HSPA and HSPA+.

The GC5325 DPD transmit architecture incorporates a TI floating point digital signal processor (DSP) to implement the advanced linearisation algorithm which relaxes multicarrier power amplifier design specifications and increases PA operating efficiencies. The device has greater than 100 MHz of DPD bandwidth which allows for correction of over 20 MHz of 5th order distortion products.

System level performance can be evaluated in the manufacturer’s design with the GC5325 system evaluation kit (GC5325SEK). Engineers can measure PA efficiency, error vector magnitude (EVM), peak-to-average ratio (PAR) and adjacent channel leakage ratio (ACLR). The kit consists of a dual-transmitter architecture supporting transmit diversity, multiple-input and multiple-output (MIMO) and beam forming for smart antenna applications.

For more information contact EBV Electrolink, +27 (0)21 402 1940, capetown@ebv.com, www.ebv.com



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Bluetooth 5.0 Low Energy module
25 March 2020, Avnet South Africa , Telecoms, Datacoms, Wireless, IoT
An output power of up to +8 dBm and the high sensitivity of the nRF52840, in combination with the LE coded PHY, make the module very attractive for applications that require a long range. The Bluetooth ...

Read more...
Antenna switch with receive limiter
26 February 2020, RFiber Solutions , Telecoms, Datacoms, Wireless, IoT
The MASW-010370, made by Macom Technology Solutions, is a fully integrated 10 W PIN diode antenna switch assembled in a lead-free 3 mm 16-lead PQFN plastic package. This module is designed to handle 10 W ...

Read more...
Wi-Fi 6 modules in automotive grade
25 March 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
u-blox has announced the JODY W3 series, multiradio modules featuring Wi-Fi 6 with 2 x 2 MIMO and dual mode Bluetooth 5.1. Supporting the latest IEEE 802.11ax standard, also known as Wi-Fi 6, JODY W3 ...

Read more...
Millimetre-wave waveguide antennas
25 March 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
Pasternack has expanded its offering of mmWave (millimetre-wave) waveguide antennas to address the growing number of 5G and other high-frequency applications. The company’s lineup has added 54 new models ...

Read more...
LPWA moduLPWA modules gain security and positioning featuresles gain security and positioning features
25 March 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
u-blox has extended its SARA R4 family of LTE-M/NB-IoT and EGPRS cellular modules to include variants with the hardware and software features necessary to enable end-to-end security features and services ...

Read more...
Wireless power receiver
25 March 2020, Altron Arrow , Telecoms, Datacoms, Wireless, IoT
The STWLC68 is an integrated wireless power receiver suitable for portable applications and capable of managing up to 5 W of output power. The chip has been designed to support Qi 1.2.4 specifications ...

Read more...
Wireless MCUs with built-in NFC
25 March 2020, Future Electronics , Telecoms, Datacoms, Wireless, IoT
NXP Semiconductors has released the new JN5189 and JN5188 IEEE 802.15.4 wireless microcontrollers (MCUs) that deliver ultra-low power connected intelligence for Zigbee 3.0 and Thread applications. The ...

Read more...
Our 5G world in 2025: what to expect, how to make it happen
26 February 2020, Lambda Test , Telecoms, Datacoms, Wireless, IoT
The complexity of 5G exacerbates known challenges and introduces challenges of a different nature to the network lifecycle approach, while the significance of investment and regulation should not be overlooked either.

Read more...
Front end module for RF range extension
26 February 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
The nRF21540 is a ‘plug and play’ range extender offering enhanced link robustness with an integrated power amplifier (PA)/low noise amplifier (LNA) for use in Nordic Semiconductor’s low-power, short-range ...

Read more...
LoRa module with Bluetooth LE support
26 February 2020, iCorp Technologies , Telecoms, Datacoms, Wireless, IoT
The RAK4600 LoRa module is powered by an nRF52832 microcontroller from Nordic Semiconductor and an SX1276 LoRa chip from Semtech. It has ultra-low power consumption of 2,0 µA in sleep mode, high LoRa ...

Read more...