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V1.0 Page 2 of 38 ICM MP CC ST

A35-A36-A40 Company Confidential 09/01

Table of Contents:

1 LIST OF LEVEL 2,5E PARTS A35/36......................................................................................................4

2 REQUIRED EQUIPMENT..........................................................................................................................5

3 REQUIRED SOFTWARE............................................................................................................................5

4 RADIO PART................................................................................................................................................6

4.1 POWER SUPPLY FOR RF PART.............................................................................................................6

4.2 FREQUENCY GENERATION...................................................................................................................7

4.2.1 DISCRETE 13MHZ VCXO................................................................................................................7

4.2.2 VCO LO1..............................................................................................................................................8

4.2.3 VCO LO2..............................................................................................................................................9

4.2.4 PLL IC PART OF SMARTI............................................................................................................10

4.3 ANTENNA SWITCH.................................................................................................................................11

4.4 RECEIVER.................................................................................................................................................12

4.4.1 RECEIVER GSM 900/1800................................................................................................................12

4.4.2 MIXER, IF-AMPLIFIER AND DEMODULATOR .......................................................................13

4.4.3 SMARTI IC ........................................................................................................................................14

4.5 TRANSMITTER........................................................................................................................................15

4.5.1 MOULATOR AND UP-CONVERSION LOOP................................................................................15

4.5.2 POWER AMPLIFIER AND ANTENNA SWITCH..........................................................................16

5 POWER SUPPLY........................................................................................................................................17

5.1 OVERVIEW AND VOLTAGES................................................................................................................17

5.2 POVER SUPPLY ASIC..............................................................................................................................18

6 BATTERY AND CHARGING....................................................................................................................24

6.1 BATTERY...................................................................................................................................................24

6.2 CHARGING CONCEPT............................................................................................................................24