DIP SAW Filter

DIP SAW Filter是天线蓬勃发展时也跟着一并发展的产品。天线可以发射出1GHz以上的超高频讯号,但由于高频率的讯 号容易受到杂讯影响且除了中心频外也会发射出其他的杂讯。所以透过表面声波技术的滤波器可以有效的过滤掉不必要的频率讯号。

DIP Type SAW Filter     AGSD-TSF11 (433.92 MHz)

Maximum rating:

  • Input Power Level: 0 dBm
  • DC voltage: 0V
  • Operating Temperature: -15 ºC to +60 ºC
  • Storage Temperature: -40 ºC to +85 ºC

 

Electrical Characteristics:

Item

Unit

Min.

Type

Max.

Center frequency

Fc

MHz

-

433.92

-

Insertion Loss

ILmin (reference level)

dB

-

2.3

3.5

3dB Bandwidth

BW3dB

MHz

4

7.7

-

Attenuation: (Reference level from ILmin )

Fc -100 to Fc -200

MHz

dB

56

64

-

Fc -25 to Fc -100

MHz

dB

40

55

-

Fc -10.7

MHz

dB

42

59

 

Fc +25to Fc +100

MHz

dB

40

60

-

Fc +100 to Fc +200

MHz

dB

40

52

-

Source impedance

Zs

Ω

-

50

-

Load impedance

ZL

Ω

-

50

-

Note:

ILmin is the minimum of the pass band attenuation. The center frequency

Fc is the mean value of the upper and lower frequencies at the 3dB filter attenuation level relative to the ILmin.

dip-saw.jpg

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