MAX2842
3.3GHz to 3.9GHz MIMO Wireless Broadband RF Transceiver
Highest Performance 3.3GHz to 3.9GHz WiMAX RF Transceiver for MIMO 2 x 2 Applications
Part Details
- 3.3GHz to 3.9GHz Operation
- Complete RF Transceiver with PA Driver
- 0dBm Linear OFDMA Transmit Power, 64-QAM, -65dB Relative Spectral Emission Mask
- 3.8dB Receiver Noise Figure
- Automatic On-Chip Receiver I/Q DC Cancellation
- On-Chip Tx I/Q Gain/Phase Error and LO Leakage Detection
- Monolithic Low-Noise VCO with -38dBc Integrated Phase Noise
- Fully Integrated Programmable I/Q Lowpass Rx Channel Filters for 3.5MHz, 5MHz, 7MHz, and 10MHz Channels
- Programmable Tx I/Q Lowpass Reconstruction Filters
- Fractional PLL with 50μs Channel Hopping Time (Settling to 50Hz)
- 4-Wire Bidirectional SPI™ Interface
- 60dB Transmit Power Control Range, Digitally Controlled by SPI
- 71dB Receive Gain Control Range, Digitally Controlled by SPI
- RSSI with 60dB Dynamic Range
- Digital Control for Tx, Rx, Shutdown, and Standby Modes
- On-Chip Crystal Oscillator with Digital Tuning
- Programable Logic Interface Voltages
- Both Automatic and Modem-Assisted Receiver I/Q DC Offset Correction
- Single +2.7V to +3.6V Supply
- Low Shutdown Mode Current
- Small 56-Pin TQFN Package (7mm x 7mm)
The MAX2842 single-chip, direct-conversion, zero-IF RF transceiver IC is designed for 3GHz NLOS wireless broadband MIMO systems. It has two transmitters and two receivers, with differential 100Ω RF inputs and outputs. The IC includes all circuitry required to implement the complete RF transceiver function, providing fully integrated receive paths, transmit path, VCO and tank, frequency synthesis, and baseband/control interface. It includes a fast-settling sigma-delta RF fractional synthesizer with ~25Hz frequency step size. The IC also integrates an on-chip AM detector for measuring transmitter I/Q imbalance and LO leakage. An internal transmit-to-receive loopback mode allows for receiver I/Q imbalance calibration. The IC supports full duplex mode of operation for external loopback.
The MAX2842 completely eliminates the need for external SAW filters by implementing on-chip programmable monolithic filters for both receiver and transmitter, for channel bandwidths from 3.5MHz to 10MHz. The baseband filtering Rx and Tx signal paths are optimized to meet stringent noise figure and linearity requirements. The transceiver is housed in a small 56-pin TQFN, 7mm x 7mm, leadless plastic package with exposed paddle.
Applications
- 3GHz 16d and 16e MIMO WiMAX
Documentation
Data Sheet 1
Technical Articles 1
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Product 3 | ||
| MAX2839AS | 2.3GHz to 2.7GHz MIMO Wireless Broadband RF Transceiver | |
| MAX2839 | 2.3GHz to 2.7GHz MIMO Wireless Broadband RF Transceiver | |
| MAX2838 | Obsolete | 3.3GHz to 3.9GHz Wireless Broadband RF Transceiver |
| RF Transceivers > 1GHz 1 | ||
| MAX2837 | PRODUCTION | 2.3GHz to 2.7GHz Wireless Broadband RF Transceiver |
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