SignalSphere
TM
3G CDMA2000-A
Baseband Processor: CBP4.0
O V E R V I E W
LSI Logic's SignalSphere
TM
chip is a highly integrated CDMA Baseband
Processor for wireless handsets and data applications. The CBP4.0 has all of
the baseband processing logic required to support CDMA2000 Cellular, PCS
and AMPS, and is backward compatible to IS-95B. Utilizing the company's
leading-edge G12
CMOS process technology, which features 0.13-micron
(Leff) gate length devices, the CBP4.0 offers high performance and functionality
in a smaller footprint, supported by advanced packaging capabilities.
Wireless-product manufacturers can leverage these benefits to reduce overall
product size and power consumption while increasing reliability.
The SignalSphere processor integrates voice coding
including mixed-signal
analog and digital capabilitieswith a seamless interface to speakers,
microphones, memory and IF/RF devices. The specific CDMA blocks include:
Two standard CDMA vocoders
Transmit digital-to-analog
(EVRC and QCELP13)
converter (DAC)
AMPS capability
Receive and transmit modems
Receive filter
Phase-locked loops (PLL)
Transmit filter
Auxiliary DACs and ADCs
Receive analog-to-digital
Voice codec
Real time clock (RTC)
The CBP4.0 also includes an on-chip ARM7TDMI
TM
control processor with
on-chip RAM, two OakDSPCore
digital signal processors (DSPs), DSP
programmable RAM/ROM, data RAM, accelerators, glue logic, and digital
logic for most modem functions.
F E A T U R E S
An ARM7TDMI
TM
control processor
(CP). The CP performs all control
functions, including protocol stack, user
interface, and hardware interface
Two OakDSPCore
digital signal
processors. One DSP assists the modem
hardware. The other performs vocoder
operations for QCELP-13 and EVRC
Mixed-signal logic for the Rx analog-to-
digital (ADC), Rx Filter, Tx Filter, Tx
digital-to-analog (DAC), PLL, voice codec,
and auxiliary DAC and ADC functions
Special purpose logic providing signal
processing, modulation, demodulation,
hardware accelerators, and interfaces
for keypad and display
B E N E F I T S
Power: Ultra-low chip quiescent current
for increased standby time in both
QPCH and PCH modes
Slotted-Paging Implementation:
Increases standby time over
conventional implementations
Small Size: The CBP at 16mm x 16mm
with 0.8mm pitch, featuring LSI Logic's
280-pin Chip Scale Package (CSP)
mounting technology, is unmatched in
its size-to-performance ratio
Cost: Single-chip integration of both
digital and mixed-signal functions greatly
reduces manufacturing and material
costs, optimizing end-product value
Performance: The CBP4.0 meets
CDMA2000-A requirements including
support for 153Kbps data rate
Time-to-Market: LSI Logic's software
and chips undergo comprehensive
system and chip validation in multiple
environments, and are backed by
unmatched support
Backward Compatibility: The CBP4.0 is
backward compatible to IS-95B and LSI
Logic's CBP3.0
CDMA
Tx Modem
Serial
I/O
CBP4.0
LSI Logic CDMA Baseband Processor
Keypad
Interface
ypp
Control
Processor
Display
Port
Data
Memory
Program
Memory
Auxiliary
DACs
Mixed Signal Logic
Digital Logic
Voice
DAC
Voice
ADC
Voice
Analysis
TX
DAC
Rx
ADC
CDMA
Rx Modem
PLLs
QDM
QM
Aux ADC
Rx
Filter
RF
Reconst
Filter
* 0 #
* 0 #
RTC
AMPS
Rx Modem
AMPS
Tx Modem
Voice
Voice
Synthesis
Synthesis
Figure 1. Simplified Block Diagram - SignalSphere
TM
CDMA Baseband Processor: CBP4.0
The
Communications
Company
TM
converter (ADC)
3G CDMA2000-A Baseband Processor
F L E X I B I L I T Y
As with so many other SoC applications in the communications and
networking arena, LSI Logic's unique CoreWare
design methodology and
library of building blocks provides system designers with unsurpassed flexibility.
Wireless-device manufacturers can take advantage of CoreWare technology to
add value and specific features to the single CDMA chip for dramatic product
differentiationall while accelerating time to market by shortening the product
development cycle and paving a smooth technology migration path into the
future. Value-added functionality can be achieved with voice recognition
options and a customized MMI (man/machine interface).
I N T E G R A T I O N A N D P O W E R
The single-chip integration helps reduce power consumption because the
signals pass between the on-chip functions blocks rather than between multiple
chips at the I/O drive level. Additionally, the single-chip's digital circuitry
operates at only 1.8 volts, significantly reducing power consumption. Working
in conjunction with on-chip 3.0 volt mixed-signal circuitry (which includes a
phase-locked loop, voice codec, receive and transmit paths, and auxiliary ADC
and DAC units), the chip's digital 1.8 volt operation and sophisticated power-
saving capabilities pave the way for increased battery life.
D E V E L O P M E N T T O O L S
The CBP4.0 comes with powerful development tools, including
development/integration systems, reference designs, ETS (Engineering Test
Software) and GAT (Graphical Analysis Tool). The ETS package provides low-
level data access for system integration and phone calibration capability for
production-test functionality. The GAT software package works with ETS to
provide graphical view of the essential data during development and field-
testing.
For more information please call:
LSI Logic Corporation
North American Headquarters
Milpitas, CA
Tel: 800 574 4286
LSI Logic Europe Ltd.
European Headquarters
United Kingdom
Tel: 44 1344 426544
Fax: 44 1344 481039
LSI Logic KK Headquarters
Tokyo, Japan
Tel: 81 3 5463 7165
Fax: 81 3 5463 7820
LSI Logic web site
www.lsilogic.com
LSI Logic logo design, CoreWare, and G12 are
registered trademark of LSI Logic Corporation.
SignalSphere is a trademark of LSI Logic
Corporation. All other brand and product names
may be trademarks of their respective companies.
LSI Logic Corporation reserves the right to make
changes to any products and services herein at any
time without notice. LSI Logic does not assume any
responsibility or liability arising out of the
application or use of any product or service
described herein, except as expressly agreed to in
writing by LSI Logic; nor does the purchase, lease,
or use of a product or service from LSI Logic
convey a license under any patent rights,
copyrights, trademark rights, or any other of the
intellectual property rights of LSI Logic or of third
parties.
Copyright 2001 by LSI Logic Corporation.
All rights reserved.
Order No. F20032
301.1k.SR.LT - Printed in USA
The
Communications
Company
TM
Figure 2. Applications of the future on today's CBP platform.
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