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CDP6872M 数据表(PDF) 13 Page - Intersil Corporation

部件名 CDP6872M
功能描述  Low Power Crystal Oscillator
PDF  15 Pages
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

CDP6872M 数据表(HTML) 13 Page - Intersil Corporation

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CDP6872
FIGURE 35. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 36. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 37. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 38. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 39. DUTY CYCLE vs RS at 32kHz
NOTE: Figure 39 (Duty Cycle vs RS at 32kHz) should only be used for 32kHz crystals. RS may be used at other frequencies to adjust Duty
Cycle but experimentation will be required to find an appropriate value. The RS value will be proportional to the effective series resis-
tance of the crystal being used.
Typical Performance Curves (Continued)
580
540
500
460
420
380
340
300
260
10K
100K
1M
10M
140
150
160
170
180
FREQUENCY (Hz)
VDD = 5V, VSS = GND
436.5
µA/V
23
1000pF
1
µF
CDP6872
100
Ω
50
Ω
178o
620
F1 = 0, F2 = 0
460
420
380
340
300
260
10K
100K
1M
10M
140
150
160
170
180
FREQUENCY (Hz)
130
VDD = 5V, VSS = GND
311.6
µA/V
23
1000pF
1
µF
CDP6872
100
Ω
50
Ω
500
177o
F1 = 0, F2 = 1
220
200
180
160
140
120
100
10K
100K
1M
10M
140
150
160
170
180
FREQUENCY (Hz)
130
240
VDD = 5V, VSS = GND
156.7
µA/V
176.6o
23
1000pF
1
µF
CDP6872
100
Ω
50
Ω
F1 = 1, F2 = 0
15
10
5
0
10K
100K
1M
140
150
160
170
180
FREQUENCY (Hz)
130
120
110
20
VDD = 5V, VSS = GND
6.56
µA/V
23
1000pF
1
µF
CDP6872
100
Ω
50
Ω
166o
F1 = 1, F2 = 1
0
20
40
60
80
100
120
35
40
45
50
55
60
F1 = F2 = 1, VDD = 5V, CL = 18pF, TA = 25
oC, F
OSC = 32.768kHz
RS (kΩ)
NDK PART #
MX-38
EPSON PART #
C-001R32.768K-A
CDP6872
XTAL
2
OSC IN
3
OSC OUT
RS



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