Analog Device Chipsets Featured In New Mobile Phones

1
Analog Device Chipsets Featured In New Mobile
Phones

• Eric Tong
• April 6, 2004

2
Agenda

• Background
• AD20msp430 SoftFone Chipset
• Digital Baseband Controller - AD6526
• ADSP-2181
• Why ADSP-2181 Not ADSP-21061
• Question

3
Background

• December 15, 2003 Analog Devices joint
  development with TCL Mobile Communication Co.,
  Ltd. on GSM mobile phones
• Why TCL Mobile Communication CO.
• Population
• 1.3 billion in China
• 28 million in Shanghai and Beijing
• TCL Customer
• 9.8 Million in 2003
• 100.8 Million US Dollars Net Profit in 2003

4
AD20msp430 SoftFone Chipset

• Analog Devices Fourth Generation GSM BaseBand
  Chipset
• Color Displays, Camera, Games, and Polyphonic
  Ring Tones
• Consists Two Chips
• Digital Baseband Controller
• AD6522, AD6526, AD6528
• Analog/Mixed-Signal Interface Chip
• AD6521, AD6535

5
AD6526 Description

• Second Device of the AD20msp430 series of
  SoftFone GSM Baseband Processors
• Designed to be
• fully integrated
• easy to use
• compatible with GSM900, DCS 1800 and PCS 1900
  handsets
• Direct PC data Interface
• Includes
• Analog Devices ADSP-218X DSP core
• ARM Controller

6
AD6526 Functional Block Diagram

• 16-bit Fixed Point Processor
• Data and Program SRAM
• Speech Encoding / Decoding
• Hardware Interface
• Radio
• Keypad
• Display
• Operating Voltage Range 1.7-1.9V

7
ADSP-2181 Description

• Singe-Chip Microcomputer Optimized for DSP
• ADSP-2100 Family Base Architecture
• ALU, MAC, Shifter
• Data Address Generators
• Program Sequences
• Two Serial Ports
• 16-bit Internal DMA Port
• Byte DMA Port
• Programmer Timer
• Flag I/O
• Extensive Interrupt Capabilities

8
ADSP-2181 Block Diagram
9
ADSP-2181 (Parallel)

• In One Processor Cycle, ADSP-2181 can
• Generate the Next Program Address
• Fetch the Next Instruction
• Perform One or Two Data Moves
• Update One or Two Data Address Pointers
• Perform a Computational Operation
• At the same time, the processor continues to
• Receive and transmit data through the two serial
  ports
• Receive and/or Transmit Data through the Internal
  DMA Port
• Receive and/or Transmit Data Through the Byte DMA
  Port
• Decrement Timer

10
ADSP-2181 Block Diagram
11
ADSP-2181Data Transfer

• Five Internal Buses
• Program Memory Address (PMA) Bus 14 bits
• Data Memory Address (DMA) Bus 14 bits
• Program Memory Data (PMD) Bus 24 bits
• Date Memory Data (DMD) Bus 16 bits
• Result (R) Bus 16 bits
• 16-bits Internal DMA Port

12
Why ADSP-2181 Not ADSP-21061

• Fast External Memory Access
• External Address Bus
• External Data Bus
• Internal DMA Port
• Byte DMA Port
• Simultaneously Communication Port
• Two 5-bits Serial Port

13
Why ADSP-2181 Not ADSP-21061

• Parallel Operation
• ADSP-21061 is designed for FIR filter
• ADSP-2181 is designed for Signal Convolution
• PowerDown Control Logic
• Protect from Sudden High Signal Power
• Other Features
• Double Metal
• Low Power (1.7V Vs 5.0 V)

14
Why ADSP-2181 Not ADSP-21061

• Size

15
Why ADSP-2181 Not ADSP-21061
16
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17
References

• http//en.wikipedia.org/wiki/ShanghaiPeople_and_C
  ulture
• http//www.analog.com/UploadedFiles/Data_Sheets/50
  5104853ADSP2181_d.pdf
• http//www.analog.com/Analog_Root/productPage/prod
  uctHome/02C21212CAD20MSP4302C00.html
• http//www.analog.com/UploadedFiles/Data_Sheets/28
  0128552AD6526_pra.pdf
• http//www.analog.com/Analog_Root/sitePage/pressRe
  leaseHome/0,2145,ContentID253D291162526aind253D
  2526Language253DEnglish2526resourceWebLawID253
  D,00.html
• http//biz.yahoo.com/bw/040223/235640_1.html

18
References

• http//www.analog.com/processors/epPressRelease/0,
  2458,level4253D25252D12526ContentID253D272522
  526level1253D4312526level2253D25252D12526leve
  l3253D25252D12526resourceWebLawID253D36,00.htm
  l
• http//www.analog.com/Analog_Root/productPage/prod
  uctHome/02C21212CAD65222C00.html
• http//www.nokia.com/nokia/0,,54665,00.html
• http//www.analog.com/UploadedFiles/Product_Briefs
  /124588788ad6526.pdf