Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
103171D Skyworks Proprietary and Confidential Information Products and Product Information are Subject to Change Without Notice. June 21, 2005
1
PRODUCT SUMMARY
CX805-30 Baseband Processor
for Multiband GSM and GPRS Applications
Applications
GSM handsets and modules (850/900/1800/1900 MHz)
GPRS handsets and modules (850/900/1800/1900 MHz)
Bluetooth
-enabled wireless headset modules
Features
0.25 CMOS process technology
ARM7 TDMI core
Skyworks DSP core with all memory on-chip
GPRS class 10 and circuit-switched data (14.4 kbps) services
Half-rate, full-rate, and enhanced full-rate speech coders
Voice features such as voice recognition, conversation record,
and voice memo
Hardware accelerator for GPRS encryption algorithms (GEA 1
and 2)
Integrated Real-Time Clock (RTC)
Interface to handset MMI peripherals such as keypad, liquid
crystal display (LCD), and annunciator
Interfaces to Skyworks IA and PMIC devices
Interface to Subscriber Identity Module (SIM)
Addresses up to 16 MB of external memory (flash or SRAM)
Application Interfaces:
-- Serial/RS-232
-- Infra-red Data Adapter (IrDA)
Low power operation. 3 V I/Os and an on-chip supplied 2.5 V
core
Eight Chip Select (CS) signals for external memory
16-bit data bus, 24-bit address bus
Description
The Skyworks CX805-30 Baseband Processors (BPs) are highly
integrated, dual core processors optimized for use in Global
System for Mobile communications (GSM) and General Packet
Radio Service (GPRS) cellular handset applications. The CX805-30
is the baseband portion of the Skyworks GSM/GPRS System
Solution.
Both the Digital Signal Processor (DSP) core and the ARM7
THUMB
TM Reduced Instruction Set Computing (RISC) architecture
are well suited to meet the needs of low power, high performance
embedded systems such as cellular phones. The BP operates over
a range of 2.7 V to 3.3 V.
The baseband processing tasks are divided between the DSP and
ARM7 processor cores. The DSP core executes the physical layer
(layer 1) processing functions, and the ARM microcontroller core
executes the Layer 2 and Layer 3 protocol software and Man-
Machine Interface (MMI) functions. The two cores communicate
through a dedicated block of dual port memory. Each of the
functional blocks in the device can be individually powered down
to ensure minimum current consumption in the idle or standby
mode.
The CX805-30 family of devices is available in several package
options:
12 x 12 mm, 0.8 mm pitch, 160-pin FPBGA
-- CX80501-31: supports up to Class 8 GPRS operation
-- CX80502-33/-35: supports up to Class 10 GPRS operation
10 x 10 mm, 0.5 mm pitch, 180-pin FPBGA
-- CX80501-32: supports up to Class 8 GPRS operation
-- CX80502-34/-36: supports up to Class 10 GPRS operation
-- CX80503-34: supports up to Class 10 GPRS operation and
features optimized ROM code
Lead-free 10 x 10 mm, 0.5 mm pitch, 180-pin FPBGA
-- CX80502-38: supports up to Class 10 GPRS operation
-- CX80503-38: supports up to Class 10 GPRS operation and
features optimized ROM code
Figure 1 provides a block diagram of the CX805-30 device in a
typical application. Package dimensions are provided in Figure 2
for the 12 x 12 devices and Figure 3 for the 10 x 10 devices.
Skyworks offers this part as a lead (Pb)-free
"environmentally friendly" package that is RoHS
compliant (European Parliament for the Restriction of
Hazardous Substances).
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
103171D Skyworks Proprietary and Confidential Information Products and Product Information are Subject to Change Without Notice. June 21, 2005
5
CX805-30 BASEBAND PROCESSOR PRODUCT SUMMARY
Ordering Information
Model Name
Part Number
Device Configuration
Baseband Processor
CX80501-31
12 x 12 mm, 160-pin, 0.8 mm pad pitch, FPBGA, GPRS Class 8
CX80501-32
10 x 10 mm, 180-pin, 0.5 mm pad pitch, FPBGA, GPRS Class 8
CX80502-33
1
12 x 12 mm, 160-pin, 0.8 mm pad pitch, FPBGA, GPRS Class 10
CX80502-35
1
CX80502-34
2
10 x 10 mm, 180-pin, 0.5 mm pad pitch, FPBGA, GPRS Class 10
CX80502-36
2
CX80502-38
Lead-free 10 x 10 mm, 180-pin, 0.5 mm pad pitch, FPBGA, GPRS Class 10
CX80503-34
10 x 10 mm, 180-pin, 0.5 mm pad pitch, FPBGA, GPRS Class 10 with optimized ROM code
CX80503-38
Lead-free 10 x 10 mm, 180-pin, 0.5 mm pad pitch, FPBGA, GPRS Class 10 with optimized ROM code
1. The CX80502-33 and CX80502-35 are interchangeable devices.
2. The CX80502-34 and CX80502-36 are interchangeable devices.
Copyright 2003, 2005, Skyworks Solutions, Inc. All Rights Reserved.
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specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts,
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The following are trademarks of Skyworks Solutions, Inc.: Skyworks, the Skyworks logo, and Breakthrough SimplicityTM. Product names or services listed in this publication are for identification
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