This is the PDF file of catalog No.P05E-9. No.P05E9.pdf 00.7.20 *CERAFIL(R) is the Registered Trademark of Murata Manufacturing Co., Ltd. CERAFIL (R) Ceramic Filter for Communications Equipment CFWS455-Y Series Resin Molded, G.D.T. Flat Type Ceramic Filter CFWS455-Y series are high selectivity ceramic filters, which consist of 6 ceramic elements connected in a ladder form. Most suitable for digital communications and mobile telephones because of their improved G.D.T. characteristics. !FEATURES 1. High selectivity. 2. A variety of bandwidth are available. 3. Excellent G.D.T. characteristics are available within pass bandwidth. 4. Easily mounted on a printed circuit board. 5. Operating temperature range : Y20D to W80D Storage temperature range : Y40D to W85D !SPECIFICATIONS Characteristics Center Frequency (kHz) Part Number 6dB Bandwidth 50dB Bandwidth (kHz) max. (kHz) min. Attenuation 455T100kHz (dB)min. Insertion Loss (dB) max. Input/Output Impedance () G.D.T.Deviation ( sec.) * CFWS455BY 455T1.5 T15 T35 35 6 1500 [30] (T10kHz) CFWS455CY 455T1.5 T12.5 T30 35 7 1500 [30] (T08kHz) CFWS455DY 455T1.0 T10 T25 35 8 1500 [30] (T07kHz) CFWS455EY 455T1.0 T07.5 T20 35 9 1500 [30] (T05kHz) CFWS455FY 455T1.0 T06 T17.5 35 10 2000 [40] (T04kHz) CFWS455GY 455T1.0 T04.5 T15 35 13 2000 [40] (T03kHz) *Typical value. !DIMENSIONS !TEST CIRCUIT !CHARACTERISTICS (CFWS455DY) 400 0 R1 0.6T0.1 20 CFWS455 t q w er 300 30 Rg 2.0 S.S.G. R2 R.F. Voltmeter 5-1.0 Hole 1.2T0.5 2.6 2.9 2.9 Connection q Input wer Ground t Output 2.6 2.9 2.9 (Back Side of PCB) 40 200 50 60 G.D.T. (sec.) 0.8T0.1 Attenuation (dB) t q w e r 10 4.3 2.0 2.3T0.5 4.3 5-0.15T0.05 7.0T0.5 3.5T0.5 7.5T0.5 11.0T0.5 70 100 RgWR1=R2=Input/Output Impedance 80 Tol. without notice : T0.3 (in mm) Connection q Input wer Ground t Output 90 100 0 430 455 480 Frequency (kHz) Note : To take best advantage of safety features of ceramic filters, connect the output to an IF amplifier through a DC cut capacitor. Avoid directly applying a direct current to output end of ceramic filters (between 5 and 2,3,4). 39