PMC-Sierra M8800 User Manual

PM8800 WiZIRD 2x2

WiMAX Zero Intermediate Frequency Radio Device

Product Overview

The PM8800 WiZIRD 2x2 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. The PM8800 WiZIRD 2x2 has two independent radio paths (2Tx and 2Rx) and supports operation in the 2.3 - 2.9 GHz or the

3.3 - 3.8 GHz licensed bands.

The PM8800 WiZIRD 2x2 enables manufacturers of WiMAX Femto BS, CPE, and MS User Equipment to build low-cost, high-performance, 2x2 MIMO equipment today.

Released Product Brief

Product Highlights

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 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

• Zero-IF architecture removes the cost associated with external

SAW filters

• Integrated DCXO supports AFC with no additional components,

except for a low-cost 40 MHz crystal

• 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 requirements with minimal changes.

For flexibility, the PM8800 WiZIRD 2x2 includes:

• Multi-band support for operation in the 2.3 - 2.9 GHz or the

3.3 - 3.8 GHz licensed bands, enabling system designs that are suitable for use across multiple geographies

• The choice of selecting an analog or digital I/Q interface to an

external Baseband MAC Processor. This lets designers use the best-in-class Baseband MAC Processor or ASIC available both now and in the future. The digital I/Q interface is compliant with JEDEC JESD207, Radio Front End - Baseband Digital Parallel Interface standard.

• 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)

• 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)

• 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 (-40 °C to +85 °C)

• 108-pin Dual Row 0.65 mm pitch Micro Lead Frame (MLF/QFN)

(11 x 11 mm body)

PM8800 WiZIRD 2x2 WiMAX Zero Intermediate Frequency Radio Device

Applications

• PCMCIA Cards, PC Express Cards, USB Dongles

• Customer Premises Equipment (CPE)

• Femto Base Stations

Block Diagram

Antenna Interface

RXA_2G+/-

RXA_3G+/-

TXA_2G

TXA_3G

RXB_2G+/-

RXB_3G+/-

TXB_2G

TXB_3G

TSSIA/B

PA_BIASA/B

PA_CTRLA/B

TR_SW_OUT

2.5GHz

LNA

3.5GHz

Radio Arm A

LNA

Balun

2.5GHz

LNA

3.5GHz

LNA

Balun

2.5GHz

3.5GHz

2.5GHz

3.5GHz

0/90

mixer

PPA

0/90

mixer

PPA

Radio Calibration and Control

TX Envelope

Detect

PA and Switch

Control

Registers

TPC

DACs

DC Offset

DACs

1st Order

Passive filter

1st Order

Passive filter

1st Order

Passive filter

1st Order

Passive filter

VGA

0/90

mixer

VGA

0/90

mixer

PM8800 WiZIRD 2x2

2nd Order

Active Filter

2nd Order

Active Filter

Attenuator

2nd Order

Active Filter

2nd Order

Active Filter

Attenuator

2nd Order

Active Filter

2nd Order

Active Filter

TPC

2nd Order

Active Filter

2nd Order

Active Filter

TPC

filter

4th Order

Active Filter

4th Order

Active Filter

4th Order

Active Filter

4th Order

Active Filter

LFO

Sfreq

Radio A

VGA

Radio B

VGA

2*FLO/3

Div2

PLL

Baseband PLL

ADC

DAC

ADC

DAC

Digital

BB Interface

SPI Interfac e

DCXO

RXA_I RXA_Q

TXA_I TXA_Q

Analog

Baseband

Digital

Baseband

Interface

DIQ[9:0]

RXB_I RXB_Q

TXB_I TXB_Q

SPI XTALO

XTALI

CLKOUT

Applications Diagram

SPDT

BPF

ANT_A

LPF

BPF

SPDT

ANT_B

LPF

Corporate Head Office: PMC-Sierra, Inc. Mission Towers One 3975 Freedom Circle Santa Clara, CA, 95054, U.S.A. Tel: 1.408.239.8000 Fax: 1.408. 492.1157

PMC-2061867, Issue 8, © Copyright PMC-Sierra, Inc. 2008. All rights reserved. For a complete list of PMC-Sierra’s trademarks , visit www.pmc-sierra.com/legal/. Other product and company names mentioned herein may be the trademarks of their respective owners. For corporate information, send email to: info@pmc-sierra.com. All product documentation is available on our web site at: www.pmc-sierra.com.

Operations Head Office: PMC-Sierra, Inc. 100-2700 Production Way Burnaby, BC V5A 4X1 Canada Tel: 1.604.415.6000 Fax: 1.604.415.6200

Balun

BPF

PM8800

WiZIRD 2x2

XTAL

Baseband

I/Q Interface

BaseBand

MAC