1.    ELECTRONICAL  SPECIFICATIONS

A. CENTRE FREQUENCY(f.)    :       450KHz±1.0KHz.Max.

B. BAND WIDTH AT 3dB        :       ±4.5KHzMin(TO 455KHz)

C. BAND WIDTH AT 40dB       :       ±10KHzMin(TO 455KHz)

D. STOP BAND ATTENUATION    :       55dBMin(AT f0  ± 18 to  ± 33KHz)

E. STOP BAND ATTENUATION    :       50dBMin.(AT f.±100KHz)

F: STOP BAND ATTENUATION    :       20dBMin(AT f0  ±0.1  to  ±1 MHz)

G: RIPPLE                   :       3.0dBMax.(AT f.±6.5KHz)

H: INSERTION LOSS           :       4.0dBMax.(AT THE SMALLEST LOSS)

I: TEMPRATURE COEFFICIENT

  OF CENTER FRENQUENCY      :       ±50 PPM/℃ MAX.(-20 TO +80 ℃)

J: INPUT/OUPUT IMPEDANCE    :       1.5KΩ

NOTE :

 A)   CENTER FREQUENCY SHALL BE DEFIED AS THE CENTRA VALUE OF THE BAND WITH AT 6dB

B)      TEMPRATURE COEFFICIENT OF CENTER FREQUENCY  SHALL BE DEFINED AS THE AVERAGE OF THE CENTRAL FREQUECY .