ATSTK525 Atmel, ATSTK525 Datasheet - Page 17

• Manufacturer Part Number: ATSTK525
• Description: KIT STARTER FOR AT90USB
• Manufacturer: Atmel

Specifications of ATSTK525

• Accessory Type: STK500 Expansion Module
• Processor To Be Evaluated: AT90USBxxx
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Silicon Core Number: AT90USB
• Kit Contents: Board Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT90USB Devices
• For Use With: ATEVK525 - ADD ON KIT FOR STK525ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.6.4
STK525 Hardware User Guide
Microphone
Figure 2-15 . Thermistor Schematic
The STK525 provides an electret microphone associated with its required preamplifier
(See Figure 2-16), the interface is connected to ADC channel 2 of the AT90USBxxx
microcontroller.
Temp.
(°C)
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
627,604
590,613
556,056
523,757
493,555
465,300
438,854
414,089
390,890
369,145
348,757
329,630
294,826
278,995
250,134
236,981
224,606
311,680
264,119
(KΩ)
R
T
Temp.
(°C)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
VCC
121,414
104,919
100,000
115,608
110,116
95,342
90,930
86,750
82,787
79,030
75,466
72,085
68,876
65,830
62,937
60,188
57,576
55,093
52,732
(KΩ)
R
R16
100k
T
R18
Temperature
Sensor
CP1
Temp.
(°C)
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
31,840
30,580
29,378
28,229
27,133
26,085
25,084
24,126
22,336
21,498
20,697
19,930
19,196
18,493
17,820
17,174
16,556
15,964
23,211
(KΩ)
R
T
Temp.
(°C)
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
Using the STK525
7608A–AVR–04/06
10,476
10,128
9,793
9,471
9,161
8,863
8,576
8,300
8,035
7,779
7,533
7,296
7,067
6,847
6,635
6,430
6,233
6,043
5,860
(KΩ)
R
T
2-17