MIKROE-793 mikroElektronika, MIKROE-793 Datasheet - Page 24

• Manufacturer Part Number: MIKROE-793
• Description: Development Boards & Kits - AVR READY FOR XMEGA BOX VERSION
• Manufacturer: mikroElektronika

Specifications of MIKROE-793

• Rohs: yes
• Product: Development Kits
• Tool Is For Evaluation Of: ATxmega128A1
• Core: AVR
• Interface Type: USB
• Operating Supply Voltage: 9 V to 32 V
• Data Bus Width: 8 bit, 16 bit
• Dimensions: 141 mm x 84 mm

8. Piezo buzzer
On-board piezo buzzer is a very useful module which can be used in debuging your code, or to have
audio signalization feature when board is integrated as a final product. Piezo buzzer’s resonant
frequency is 3.8kHz. In addition, other frequencies in the range between 20Hz and 20.000Hz can be
used, but the best performance is provided by frequencies ranging between 2kHz and 4kHz.
Figure 8-1:
Piezo buzzer
Piezo buzzer
connection
schematics
Figure 8-2:
R29
1K
VCC-3.3V VCC-3.3V VCC-3.3V VCC-3.3V
VCC-3.3V VCC-3.3V VCC-3.3V VCC-3.3V
C3
C4
C6
100nF
C14
100nF
BC846
Q12
X2
22pF
22pF
Decoupling
capacitors
Page 24
VCC-5V
C11
100nF
C15
100nF
PZ1
C16
100nF
C12
100nF
PERSPECTIVE
PQ1/TOSC2
PQ0/TOSC1
R27
10K
VIEW
VIEW
TOP
C17
100nF
C13
100nF
PQ2
AVCC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
PA6
PA7
GND
AVCC
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
GND
VCC
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
GND
VCC
PD0
ATXmega128A1
GND
GND
GND
PK0
VCC
VCC
PH7
PH6
PH5
PH4
PH3
PH2
PH1
PH0
VCC
PJ7
PJ6
PJ5
PJ4
PJ3
PJ2
PJ1
PJ0
PF7
PF6
U4
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
VCC-3.3V