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參數資料
| 型號： | HA7210IB |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 模擬信號調理 |
| 英文描述： | 10kHz to 10MHz, Low Power Crystal Oscillator |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 文件頁數： | 12/15頁 |
| 文件大小： | 127K |
| 代理商： | HA7210IB |
12
FIGURE 35. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 36. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 37. TRANSCONDUCTANCE vs FREQUENCY
FIGURE 38. TRANSCONDUCTANCE vs FREQUENCY
NOTE:
but experimentation will be required to find an appropriate value. The R
S
value will be proportional to the effective series resistance of the crystal
being used.
FIGURE 39. DUTY CYCLE vs R
S
at 32kHz
NOTE:
Refer to Test Circuit (Figure 1).
Figure 39 (Duty Cycle vs R
S
at 32kHz) should only be used for 32kHz crystals. R
S
may be used at other frequencies to adjust Duty Cycle
Typical Performance Curves
(Continued)
580
540
500
460
420
380
340
300
260
10K
100K
1M
10M
140
150
160
170
180
FREQUENCY (Hz)
P
T
μ
A
V
DD
= 5V, V
SS
= GND
436.5
μ
A/V
2
3
1000pF
1
μ
F
HA7210
100
50
178
o
620
F1 = 0, F2 = 0
460
420
380
340
300
260
10K
100K
1M
10M
140
150
160
170
180
FREQUENCY (Hz)
P
T
μ
A
130
V
DD
= 5V, V
SS
= GND
311.6
μ
A/V
2
3
1000pF
1
μ
F
HA7210
100
50
500
177
o
F1 = 0, F2 = 1
220
200
180
160
140
120
100
10K
100K
1M
10M
140
150
160
170
180
FREQUENCY (Hz)
P
T
μ
A
130
240
V
DD
= 5V, V
SS
= GND
156.7
μ
A/V
176.6
o
2
3
1000pF
1
μ
F
HA7210
100
50
F1 = 1, F2 = 0
15
10
5
0
10K
100K
1M
140
150
160
170
180
FREQUENCY (Hz)
P
T
μ
A
130
120
110
20
V
DD
= 5V, V
SS
= GND
6.56
μ
A/V
2
3
1000pF
1
μ
F
HA7210
100
50
166
o
F1 = 1, F2 = 1
0
20
40
60
80
100
120
35
40
45
50
55
60
F1 = F2 = 1, V
DD
= 5V, C
L
= 18pF, T
A
= 25
o
C, f
OSC
= 32.768kHz
R
S
(k
)
D
NDK PART #
MX-38
EPSON PART #
C-001R32.768K-A
HA7210
XTAL
2
OSC IN
3
OSC OUT
R
S
HA7210
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