QSF-400C12     SAW-Filter     400 MHz

Application:  

IF-Filter for GSM, DCS & PCS

Specification

  

Centre Frequency Fo

400 MHz

Band Width  @ 3 dB

280 ~ 360 kHz

Usable Single Band Width

> 140 kHz

Relative Attenuation

400 MHz  ± 400 kHz

400 MHz  ± 600 kHz

400 MHz  ± (1 ~ 13 MHz)

 

> 15 dB

Typ. 25 dB

> 27 dB

Typ. 35 dB

> 35 dB

Typ. 58 dB

Insertion Loss

< 6.5 dB

Typ. 5.0 dB

Group Delay (Absolute Delay)

within  400 MHz  ± 70 kHz

 

< 2.0 µs

Typ. 0.5 µs

 


 
50 Test circuit

Pin

Function

#1, 2

Sym. Output

#3, 5, 6

GND

#4

External Coil

#7, 8

Sym. Input

#9, 10

GND

#11, 12

GND

 

Source impedance:

770 //-0.8 pF balanced

 
Load impedance:

770 //-0.8 pF balanced

 
Input power level:
    

0 dBm

 
Operating temperature:

-20° ~+70°C


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