21.4 MHz MCF Crystal Filters:
|
Model
No
|
Poles
|
PASS BAND
|
STOPBAND ATTENUATION
|
Ripple
max
|
Loss
max
|
Ult. Rej.
max
|
TERMINAL
IMPEDANCE
Ohms// pf
|
CASE
TYPE
|
|
db
|
KHz
|
db
|
KHz
|
db
|
KHz
|
dB
|
dB
|
dB
|
| A. 12.5 KHz Channel Spacing |
|
XF21U08B
XF21U08C
XF21U08D
|
4
6
8
|
3
3
3
|
+/- 3.75
+/- 3.75
+/- 3.75
|
40
45
60
|
+/- 14
+/-8.75
+/-8.75
|
65
90
|
+/-12.5
+/-12.5
|
1.0
2.0
2.0
|
2.5
3.5
4.0
|
60
80
90
|
850 // 6.0
850 // 6.0
80 // 6.0
|
FK-02 X 2
FK-05
FK-05
|
B. 20 KHz Channel Spacing
|
|
XF21U12B
XF21U12C
XF21U12D
|
4
6
8
|
3
3
3
|
+/- 6
+/- 6
+/-6
|
40
45
60
|
+/- 20
+/-14
+/-14
|
65
90
|
+/-20
+/-20
|
1.0
2.0
2.0
|
2.5
3.0
3.5
|
65
80
90
|
1200 // 2.5
1200 // 2.5
1200 // 2.5
|
FK-02 X 2
FK-05
FK-05
|
C. 25 KH z Channel Spacing
|
|
XF21U15B
XF21U15C
XF21U15D
|
4
6
8
|
3
3
3
|
+/- 7.5
+/- 7.5
+/- 7.5
|
40
45
60
|
+/- 25
+/-17.5
+/-15
|
65
90
|
+/-25
+/-25
|
1.0
2.0
2.0
|
2.5
2.5
3.0
|
65
80
90
|
1600 // 2.0
1600 // 2.0
1600 // 2.0
|
FK-02 X 2
FK-05
FK-05
|
D. 35 KH z Channel Spacing
|
|
XF21U20B
XF21U20C
XF21U20D
|
4
6
8
|
3
3
3
|
+/- 10
+/- 10
+/- 10
|
40
45
60
|
+/- 35
+/-24.5
+/-24.5
|
60
90
|
+/-35
+/-35
|
1.0
2.0
2.0
|
2.5
3.0
3.5
|
50
60
80
|
1800 // 1.5
1800 // 1.5
1800 // 1.5
|
FK-02 X 2
FK-05
FK-05
|
E. 50 KH z Channel Spacing
|
|
XF21U30B
XF21U30C
XF21U30D
|
4
6
8
|
3
3
3
|
+/- 15
+/- 15
+/- 15
|
40
45
65
|
+/- 50
+/-35
+/-35
|
80
|
+/-50
|
1.0
2.0
2.0
|
2.0
2.5
3.5
|
50
60
80
|
2300 // 1.0
2300 // 1.0
2300 // 1.0
|
FK-02 X 2
FK-05
FK-05
|
Notes:
*Operating Temperature -20 C - + 70 C
*Other Filter packages available on Request
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|