IFR3500™ Rx IF/BASEBAND

QUALCOMM CDMA TECHNOLOGIES HTTP://WWW.CDMATECH.COM ENABLING THE FUTURE OF COMMUNICATIONSTM

VCO out VCO tank TCXO Rx IF/BASEBAND PROCESSOR

™ SBI and mode VCO filter Mode Ctl tuner control Logic A = 2, 3, 4, or 6 IFR3500 1/A I offset 090 GPS LPF GPS / digitized CDMA CDMA IF input CDMA ADC Rx data (Q) LPF AGC CHIPx8/G

control SW GPS GPS LPF GPS / digitized IF input CDMA CDMA ADC Rx data (I) LPF Q offset

IFR3500 Functional Block Diagram

Overview The range of supply voltage is from 2.7 V to 3.0 V, At CDMA Technologies (QCT), we strive to constantly which provides operating compatibility for platforms improve the indispensable communication tools we all use every day. utilizing a single-cell Li-Ion battery design. CDMA QCT creates state-of-the-art chipsets, system software, development and GPS mode selection, gain control, IF LO tools and products – such as the Launchpad™ suite of technologies and frequency divide, and selective power-down modes software – that support the most advanced digital features and which permit optimized power savings are controlled functionality available for wireless devices and base stations – while directly from the MSM device and system software. The IFR3500 device continually reducing complexity, cost and board-space requirements. is provided in a 32-pad BCC++ plastic package that includes an exposed center ground slug for improved RF grounding, mechanical The IFR3500™ device is a fully integrated IF-to-baseband processor strength, and thermal continuity. performing all CDMA and GPS receive (Rx) signal processing functions required between the IF output from QCT’s RFR3100™ or RFR3300™ As with all QCT products, the IFR3500 device features the unparalleled Rx front-end devices and at baseband with Mobile Station Modem customer support you have come to expect from your partner of choice (MSM™) devices for IS-95 CDMA-only and ARIB-53 (Japan) J-CDMA for complete wireless communications solutions. QCT is committed to applications. The IFR3500 device leverages previous IFR3300™ circuit providing innovative multi-mode, multi-network chipsets, system software designs, including GPS, and provides significant advantages in size and and development tools that will help ensure your competitive success in cost for single-mode CDMA or single-mode plus gpsOne™- enabled the wire-less communications marketplace for 3G and beyond. handsets. In conjunction with RFR3100 or RFR3300 devices, a complete two-chip Rx implementation for CDMA handsets with Features GPS position location capability is realized with minimum circuitry. • Dual-mode operation includes CDMA and GPS • Rx digital baseband interface compatible with MSM3100™, The IFR3500 device includes IF AGC amplifiers, IF VCO, selectable MSM3300™, MSM5105™, MSM5100™, and MSM5500™ devices frequency divider for IF LO, a quadrature IF-to-baseband downconverter, • IF LO synthesizer can be shared between IFR3500 and RFT3500 in-phase (I) and quadrature (Q) baseband filters, and Analog-to-Digital devices for easier frequency planning and reduced cost Converters (ADCs). Used in conjunction with QCT’s RFT3500™ device, • Rx power control through 90 dB dynamic range VGA the IFR3500 device accommodates sharing of the IF LO synthesizer to • IF mixer for down-converting IF to analog baseband for CDMA and enable simplified frequency plans and reduced cost. GPS

QUALCOMM, INCORPORATED CDMA TECHNOLOGIES 5775 MOREHOUSE DRIVE SAN DIEGO, CA 92121 T (858) 658-5005 F (858) 658-1556 [email protected] QUALCOMM CDMA TECHNOLOGIES HTTP://WWW.CDMATECH.COM ENABLING THE FUTURE OF COMMUNICATIONSTM

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• Lowpass filtering for CDMA and GPS I- and Q-component baseband • MSM-controlled operation via serial interface (SBI) Rx IF/BASEBAND PROCESSOR signal demodulation • Supply voltage from 2.7 V to 3.0 V ™ • 4-bit ADCs convert CDMA or GPS I and Q analog baseband • 32-pin BCC++ package (5 mm x 5 mm x 0.8 mm) components to digital baseband

IFR3500 • IF LO circuits include on-chip VCO with selectable frequency divide Part Number Functionality ratios (2, 3, 4, 6) IFR3000 CDMA, AMPS IF-to-baseband receiver • I- and Q-channel DC offset control inputs drive baseband DC voltage IFR3300 CDMA, AMPS, GPS IF-to-baseband receiver offset to zero in CDMA and GPS signal paths IFR3500 CDMA, GPS IF-to-baseband receiver • Selective programming modes to extend handset power savings IFR Selection Guide

mode control Vctl

DAC_IREF SBI and RFT3500 Mode Ctl Logic

Tx data (I) Power Amplifier ctl SSB cellular BPF

Tx data (Q) status & ctls REF2 90 0 VCO ckt used as buffer amp F/2 SBI and VCO PLL Mode Ctl Logic

Power Supply Conditioning IF PM1000 tank REF1 REF1 REF2

MSM loop VCO loop RFR3300-2J filter synth filter VCTCXO IC Reference F/2 VCO tank 19.8 MHz

s Mode Ctl

tls

tu

c

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sta Logic IFR3500 SBI and filter mode tuner Mode Ctl control VCO Logic A = 3 Dual-Band Gctl 1/A I offset Cellular Tx Antenna 090 GPS cellular CDMA Rx LPF GPS / BPF BPF CDMA Rx data (Q) Cell CDMA CDMA ADC LPF Vcontrol CHIPx8/G

Dplx SW GPS GPS LPF GPS / GPS GPS GPS CDMA Rx data (I) BPF BPF BPF CDMA ADC GPS LPF GPS Q offset

IFR3500 as Part of QUALCOMM’s Chipset Architecture (J-CDMA Phone with gpsOne configuration shown)

Copyright © 2003 QUALCOMM Incorporated. All rights reserved. QUALCOMM is a registered trademark and service mark, and IFR3500, RFR3100, RFR3300, IFR3300, RFT3500, MSM, Mobile Station Modem, MSM3100, MSM3300, MSM5105 and MSM5500 are trademarks of QUALCOMM Incorporated. All other trademarks contained herein are the property of their respective owners. Data subject to change without notice. Printed in USA 2/2003 IFR3500-SS X4

QUALCOMM, INCORPORATED CDMA TECHNOLOGIES 5775 MOREHOUSE DRIVE SAN DIEGO, CA 92121 T (858) 658-5005 F (858) 658-1556 [email protected]