Texas Instruments - Highly integrated, full-duplex IF transceiver for wireless backhaul applications

This integration combined with an output third order intercept point (OIP3) of 29.5 dBm and a receiver noise figure (NF) of 4.3 dB ensures superior linearity and sensitivity, making this transceiver well suited for wireless infrastructure backhaul and point-to-point microwave end equipment.

“Microwave equipment manufacturers are looking for ways to help reduce the capital and operating expenditures of their service provider customers and the highly-integrated TRF2443 can help to meet that requirement,” said David Briggs, general manager of TI’s Radio products group.

Key features and benefits of the TRF2443

* Integration of more than 15 functional blocks enables designers to achieve 40 percent board space savings over discrete implementations. Functional blocks include:

o Programmable baseband amplifiers

o Intermediate Frequency (IF) amplifiers

o Analog and digital variable gain amplifiers

o Quadrature modulator and demodulator

o Programmable baseband low pass filters

o Analog-to-digital converter (ADC) buffers

o XPIC output amplifier and receiver

· Transmit (Tx) OIP3 of 29.5 dBm and receive (Rx) third order input intercept point (IIP3)of 9.5 dBm allows for more complicated modulation schemes and increased data throughput

· Programmable baseband low-pass filters provide flexibility to handle signals with different bandwidths and help to remove unwanted interferer signals

· Integrated Tx/Rx synthesizers eliminate the need for complicated external local oscillator circuitry, simplifying design

· Automatic DC offset calibration eases design implementation

The TRF2443 broadband IF transceiver is the latest addition to Texas Instruments’ high-performance RF product line for wireless communications, including: TRF3703 quadrature modulator, TRF3710 quadrature demodulator and TRF3761 RF synthesizers. Wireless infrastructure customers can accelerate time-to-market by taking advantage of TI’s high-performance signal chain solutions that include market-leading analog-to-digital converters, such as ADS62P25, and digital-to-analog converters, such as DAC5662.