Nokia 6310i - Page 90

NPL-1
3 - Audio System PAMS Technical Documentation
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Buzzer
PCB
Sound Port
A-Cover
Buzzer Resonance
Chamber Volume
Spring Contacts
Rubber
gasket
Figure 10. Sketch of Buzzer Acoustic Design
Figure 11. Mechanical buzzer assemply
Buzzer frequency response
88
90
92
94
96
98
100
102
104
106
108
0 1000 2000 3000 4000 5000 6000 7000
Freq. / Hz
SPL / dB(A)
Figure 12. Typical buzzer frequency response