General Description
The MAX2837 direct-conversion zero-IF RF transceiver is designed specifically for 2.3GHz to 2.7GHz wireless broadband systems. The MAX2837 completely integrates all circuitry required to implement the RF transceiver function, providing RF-to-baseband receive path; and baseband-to-RF transmit path, VCO, frequency synthesizer, crystal oscillator, and baseband/control interface.
FEATUREs
♦ 2.3GHz to 2.7GHz Wideband Operation
♦ Complete RF Transceiver, PA Driver, and Crystal Oscillator
0dBm Linear OFDM Transmit Power
-70dBr Tx Spectral Emission Mask
2.3dB Rx Noise Figure
Tx/Rx I/Q Error and LO Leakage Detection
Monolithic Low-Noise VCO with -39dBc Integrated Phase Noise
Programmable Tx I/Q Lowpass Anti-Aliasing Filter
Sigma-Delta Fractional-N PLL with 20Hz Step Size
45dB Tx Gain-Control Range
94dB Receive Gain-Control Range
60dB Analog RSSI Instantaneous Dynamic Range
4-Wire SPI™ Digital Interface
I/Q Analog Baseband Interface
Digitally Tuned Crystal Oscillator
On-Chip Digital Temperature Sensor Read-Out
♦ +2.7V to +3.6V Transceiver Supply
♦ Low-Power Shutdown Current
♦ Small 48-Pin Thin QFN Package (6mm x 6mm x 0.8mm)
APPLICATIONs
802.16-2004 Fixed WiMAX
Korea Wibro and 802.16e Mobile WiMAX
Dual ModeTM WiMAX/802.11b/g Wi-Fi
Proprietary Wireless Broadband Systems
4G/LTE Systems