User Guide

PAMS Technical Documentation 3 - Audio System
NPE-4
Original ãNokia Corporation. Page 3-3
List of Figures (continued)
Figure 10 Sketch of buzzer acoustic design .......................................................................... 17
Figure 11 Mechanical buzzer asssembly ................................................................................ 17
Figure 12 Typical buzzer frequency response ....................................................................... 17
Figure 13 Buzzer driver circuit .................................................................................................. 18
Figure 14 Vibra driver circuit ..................................................................................................... 19
Figure 15 External microphone interface .............................................................................. 24
Figure 16 External earpiece interface ..................................................................................... 26
Figure 17 Sysyem connector - mechanical outline ............................................................. 28
Figure 18 Carkit audio interface. block diagram .................................................................. 32
List of Tables
Table 1 Parts list ....................................................................................................................... 6
Table 2 Supply voltages .......................................................................................................... 7
Table 3 Possible UEM gains for each input and output ................................................. 8
Table 4 Total UEM gain for each input and output in different audio paths ........... 8
Table 5 UEM ear output specification ................................................................................ 13
Table 6 Microphone input specifications ........................................................................... 16
Table 7 Buzzer driver specifications .................................................................................... 18
Table 8 Vibra driver specifications ....................................................................................... 20
Table 9 Vibra output frequency control ............................................................................. 20
Table 10 HDC-9P interface specifications ........................................................................... 21
Table 11 Selected specifications for HDW-1 BT headset ................................................. 21
Table 12 LPS-1 interface specifications ............................................................................... 22
Table 13 Microphone input specifications, external audio ............................................. 25
Table 14 UEM HF output specifications ............................................................................... 26
Table 15 System connector pin assignment ........................................................................ 28
Table 16 HEADINT voltage value table used for accessory identification ................... 30
Description Page No.