PM8800 WiZIRD 2x2
WiMAX Zero Intermediate Frequency Radio
Device
Released Product Brief
Product Overview
The PM8800 WiZIRD 2x2 is an
3.3 - 3.8 GHz licensed bands.
The PM8800 WiZIRD 2x2 enables manufacturers of WiMAX Femto BS, CPE, and MS User Equipment to build
Product Highlights
Ultra-Integration
Integration of key transmit and receive path components dramat- ically reduces the cost of materials and manufacturing, at the same time improving system reliability.
The PM8800 WiZIRD 2x2 features:
•Two independent radio paths (2Tx and 2Rx) supporting all Wave 2 MIMO features and enabling the radio path for uplink MIMO enhancements
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•Integrated DCXO supports AFC with no additional components, except for a
•Integrated synthesizer loop filter improves noise immunity and reduces board space requirements
•40 MHz reference is available for use by the Baseband MAC Processor
•Diagnostic loopback circuits for radio calibration and baseband diagnostics
•Integrated DAC/ADCs for digital I/Q designs allow Baseband MAC Processors to scale with Moore's Law without being burdened with analog circuits
•Integrated transmit baluns, digital temperature monitor, and Rx DC offset capability
Design Flexibility
Design flexibility is essential for equipment manufacturers, allowing them to react and adapt to changes in market require- ments with minimal changes.
For flexibility, the PM8800 WiZIRD 2x2 includes:
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•The choice of selecting an analog or digital I/Q interface to an external Baseband MAC Processor. This lets designers use the
•Configurable channel bandwidths of 3.5 MHz, 5 MHz, 7 MHz, 8.75 MHz, 10 MHz, 14 MHz, and 20 MHz
•Programmable transmitter gain control for mobile applications
Reliable Performance
Transmit Path
•EVM (measured after integrated balun):
•Tx power control range: 70 dB (1 dB steps)
•
Receive Path
•EVM:
•RFIC noise figure: 2.9 dB (2.5 GHz), 3.3 dB (3.5 GHz)
•Rx gain control: 93 dB range (1.5 dB steps), 106 dB max gain
•Adjacent channel rejection: 26 dB (64 QAM)
•Alternate channel rejection: 34 dB (64 QAM)
General Device Information
•Control interface conforms to industry standard SPI specifications used by Baseband MAC Processors
•1.8V ± 5% and 2.5V ± 5% supply voltages
•Industrial temperature range
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