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PM8851 WiZIRD 512 WiMAX Zero Intermediate Frequency Radio Device

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Product Brief

Locked Document, Log In RequiredPDFPM8851 WiZIRD 512 WiMAX Zero Intermediate Frequency Radio Device Product Brief [276 KB] PMC-2071977 2008-08-18 

Features

PRODUCT OVERVIEW

The PM8851 WiZIRD 512 is an ultra-integrated single-chip WiMAX Zero Intermediate Frequency (ZIF) Radio Device. It is designed for Fixed and Mobile WiMAX applications and supports both IEEE 802.16-2004 and IEEE 802.16e-2005 standard requirements. PM8851 WiZIRD 512 has 1 Tx and 2 Rx radio paths and supports operation in the 2.3 - 2.9 GHz or the 3.3 - 3.8 GHz, or 4.9 - 5.95 GHz bands.

The PM8851 WiZIRD 512 enables manufacturers of WiMAX user Equipment to build low-cost, high-performance, mobile stations and customer premises equipment.

ULTRA-INTEGRATION

Integration of key transmit and receive path components dramatically reduces the cost of materials and manufacturing, at the same time improving system reliability.

The PM8851 WiZIRD 512 features:

  • Independent radio paths (1Tx and 2Rx) that support all Wave 2 MIMO features
  • Zero-IF architecture removes the cost associated with external SAW filters
  • Integrated synthesizer loop filter improves noise immunity and reduces board space requirements
  • Integrated transmit balun, 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 requirements with minimal changes.

For flexibility, the PM8851 WiZIRD 512 includes:

  • Multi-band support for operation in the 2.3 - 2.9 GHz, 3.3 - 3.8 GHz, or the 4.9 - 5.95 Ghz bands, enabling system designs that are suitable for use across multiple geographies
  • 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

PMC-Sierra has supplied and supported high performance semiconductor solutions to the communications industry for over a decade. The same performance philosophy applies to our WiMAX products.

Transmit Path
  • EVM (measured after integrated balun): -36 dB @Pout = 0 dBm (2.5 GHz), -34 dB @Pout = 0 dBm (3.5 GHz), -32 dB @Pout = 0 dBm (5.5 GHz)
  • Tx power control range: 70 dB (1 dB steps)
  • -77 dBm/MHz noise floor at 70 MHz offset
Receive Path
  • EVM: -36 dB (2.5 GHz), -34 dB (3.5 GHz), -32 db (5.5 GHz)
  • RFIC noise figure: 2.9 dB (2.5 GHz), 3.3 dB (3.5 GHz), 3.7 dB (5.5 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 ± 8/20/2008 5% supply voltages
  • Industrial temperature range (-40 °C to +85 °C)
  • 108-pin Dual Row 0.65 mm pitch Micro Lead Frame (MLF/QFN) (11 x 11 mm body)

Applications

  • PCMCIA Cards, PC Express Cards, USB Dongles
  • Customer Premises Equipment (CPE)
 
 
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