SMD Crystal FILTER(MCF)

SMD石英晶體濾波器是一種窄頻的帶通濾波器。由於晶體的高Q質特性,其帶通的頻寬較一般陶瓷濾波器狹窄,且能夠通過多組的濾波器讓通過的頻寬更精確。為了因應手持裝置的尺寸PCB打件的方便性,石英晶體濾波器也有提供SMD小型化的包裝。通常應用在低頻的通訊設備上,如對講機、基地台等。

SMD Type MCF (Monolithic Crystal Filters)    AGMCF-SF7050

Features:

  • Small size, light weight.
  • Wide frequency range.
  • Seam type.

12.5kHz Channel Spacing

Type

Freq.

Poles

Pass Band Width

Stop Band Width

Ripple

Loss

     

dB

kHz

dB

kHz

dB

dB

21R08A

21.4 MHz

2

3

± 3.75 kHz

20

± 18 kHz

0.5

1.5

45R08A

45.0MHz

2

3

± 3.75 kHz

10

± 12.5 kHz

1.0

2.5

25.0kHz Channel Spacing

Type

Freq.

Poles

Pass Band Width

Stop Band Width

Ripple

Loss

     

dB

kHz

dB

kHz

dB

dB

21R15A

21.4 MHz

2

3

± 7.5 kHz

18

± 25 kHz

0.5

1.5

45R15A

45.0 MHz

2

3

± 7.5 kHz

15

± 25 kHz

1.0

2.0


crystal-mcf-smd.jpg

 

50.0 kHz Channel Spacing

Type

Freq.

Poles

Pass Band Width

Stop Band Width

Ripple

Loss

     

dB

kHz

dB

kHz

dB

dB

21R30A

21.4 MHz

2

3

± 15 kHz

15

± 45 kHz

0.5

1.5

45R30A

45.0 MHz

2

3

± 15 kHz

15

± 50 kHz

1.0

2.0


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