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TFE-4/RV-1
Company Confidential
TF5 Technical Information
Nokia Customer Care
Page 8a-2
Copyright
©
2005
Nokia Corporation.
Issue 2.0 Mar/2005
Company Confidential
Table of Contents
Description
Page No.
Technical Information......................................................................................................................
5
Internal signals and connections .........................................................................................
5
User interface ............................................................................................................................
5
Modes of operation ..................................................................................................................
6
Functional descrpition ............................................................................................................
7
Block diagram ....................................................................................................................
7
Electrical module description ........................................................................................
7
PWBs .....................................................................................................................................
8
Functional description of software ..............................................................................
8
Introduction ......................................................................................................................................
8
Block diagram of Junctionboard ..........................................................................................
9
Description of the Powerstates .............................................................................................
10
Standbye mode ..................................................................................................................
10
Active mode ........................................................................................................................
10
Active locked mode ..........................................................................................................
10
Ignition Off mode ..............................................................................................................
11
Carbatt fail mode ..............................................................................................................
11
Description of the blocks ........................................................................................................
12
Power supply ......................................................................................................................
12
Block diagram of Power supply ..............................................................................
12
Desciption of inputs, outputs and block internal lines ...................................
12
Description of the Hardware Realization ............................................................
13
Power control/Reset block .............................................................................................
17
Power control/Reset block diagram .....................................................................
18
Desciption of inputs, outputs and block internal lines ...................................
18
Description of the HW Realization .......................................................................
20
Description of the Audio Block ....................................................................................
22
Block diagram of Audio Block ..............................................................................
22
Desciption of Inputs, Outputs and Block-internal Lines ................................
23
Description of the HW Realization .......................................................................
24
Level shifter description ..................................................................................................
27
Block diagram of Levelshifter part ........................................................................
27
CRM Levelshifter ...............................................................................................................
28
Functional description ..............................................................................................
28
Antenna line ...............................................................................................................................
29
Connectors .................................................................................................................................
29
B2B connectors ..................................................................................................................
29
External connectors ..........................................................................................................
31