The RF112L0HS9B from NXP is a Direct Baseband-to-RF Transceiver that operates from 2.4 to 2.5 GHz (low-band) and 4.9 to 6 GHz (high-band). It is designed for ISM band applications and does not require an IF stage, thereby simplifying the overall layout. This transceiver consists of a dual-band 1Tx/2Rx MIMO transceiver, 2x observation receivers (1x dual-band), baseband I/Q filters, clock synthesizer, ADC/DAC, and interfaces. It complies with spectral mask requirements and supports automatic gain control with proprietary signalling to NXP’s baseband devices. The receivers operate independently and the dual-band units can be configured to work in either the low band or high band. This transceiver has 20/40/80 MHz channel bandwidths.
In the Tx chain, the RF112L0HS9B zero-IF transceiver delivers -26 to -6 dBm output power with 2 dB resolution, while the Rx chain provides up to 61.5 dB gain, a 5.4 dB noise figure, and 25 dB image rejection. This RF transceiver uses traditional low-speed I2C and a low-complexity, high-speed custom LVDS bus for configuration and bidirectional data exchange with the baseband unit. It requires a DC supply of 1.67 to 1.72 V. This RoHS-compliant transceiver is available in a thermally-enhanced QFN package that measures 9.00 x 9.00 x 0.85 mm.
