305.0 MHz SAW Filter Part Number 261802B 1. Features Typical 1dB bandwidth of 18.5 MHz High attenuation Single Ended Operation Dual In-line Package (DIP) 2. Electrical Specifications Source and Load Impedance = 50Ω Room Temperature : +25℃ ℃ Minimum Typical Maximum MHz - 305.0 - dB - 25.5 27.0 1dB Bandwidth MHz 18.4 18.52 - 3dB Bandwidth MHz - 18.96 - 40dB Bandwidth MHz - 20.91 21.1 dB - 0.6 1.2 Group Delay Variation (Fo±9.0MHz) nsec - 35 70 Absolute Delay usec - 2.06 - dB 45 52 - ppm/℃ ℃ - -18 - Center Frequency (fo) Insertion Loss Amplitude Ripple (Fo±9.0MHz) Ultimate Rejection Temperature Coefficient of Frequency 5.5max 6.0max 5 1 L1 Input 50Ω L2 C1 Output 50Ω C2 12.7±0.2 2.5±0.2 7.6±0.2 0.45±0.05 ITF 13A001 261802B 305-18.5M 20.3±0.5 12.7±0.5 Matching Schematic 2.5±0.2 D2012 Package Dimension L1 = 6.8nH , L2 = 6.8nH, C1 = 27pF, C2 = 20pF Dimensions shown are nominal in millimeters Pin Configuration Base : Fe(SPCC), Au plating over Ni plated Cap : Cu & Cr Alloy, Ni Plated Termination : Kovar, Au Plated I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Tel: 82-32-621-1213 Fax: 82-32-621-1218 Input 1 Ground 2,4 Output 5 Others Ground http://www.itf.co.kr [email protected] 2013. 03. 27 Rev 1.0 305.0 MHz SAW Filter Part Number 261802B 3. Typical Performance ( at +25℃ ℃) 1dB Bandwidth & Ripple CH1 S21 CH2 S21 LOG LOG 40dB Bandwidth 26 Mar 2012 07:57:53 1: 0. 0000 dB 0. 000 000 MHz 3:-. 22810 dB 18. 000 000 MHz 1 dB/ REF -24.94 dB 1 dB/ REF -25.44 dB CH1 Markers REF=1 BW: 18. 524478 MHz PRm CH1 S21 LOG 26 Mar 2012 07:56:37 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -25.53 dB * PRm CH1 Markers REF=1 BW: 20. 913929 MHz 1 cent : 304. 932253 MHz Q: 16. 461 cent : 304. 876657 MHz Q: 14. 578 2 1_loss : -25 . 404 dB Cor 1_loss : -25 . 532 dB Cor 1 2 3 4 3 PRm 2 CH2 Markers mean:-25REF=2 . 262 dB 3 4 s. dev : . 10860 dB p-p : . 55940 dB Cor CENTER 305. 000 000 MHz SPAN 21. 000 000 MHz CENTER 305. 000 000 MHz 3dB Bandwidth & Group Delay CH1 S21 CH2 S21 LOG DEL 26 Mar 2012 07:58:16 1: 0. 0000 dB 0. 000 000 MHz 3:-13 . 007 ns 18. 000 000 MHz 1 dB/ REF -24.94 dB 50 ns/ REF 2.046 us CH1 Markers REF=1 BW: 18. 963677 MHz PRm SPAN 60. 000 000 MHz Smith Chart(S11&S22) CH1 S11 CH2 S22 1: 40. 045 2: 36. 246 1 U FS 1 U FS 15. 174 36. 014 26 Mar 2012 07:59:55 7. 9180 nH 305. 000 000 MHz 18. 793 nH 305. 000 000 MHz PRm cent : 304. 917105 MHz Q: 16. 079 1_loss : -25 . 409 dB Cor 2 Cor 1 1 2 3 PRm 2 Smo PRm CH2 Markers mean: 2.REF=2 0722 us 4 s. dev : 6. 5800 ns 3 p-p : 35. 313 ns Cor Cor CENTER 305. 000 000 MHz SPAN 21. 000 000 MHz CENTER 305. 000 000 MHz Wideband Properties CH1 S21 LOG 10 dB/ REF -26.84 dB SWR(S11 & S22) 26 Mar 2012 08:00:35 1: 0. 0000 dB 0. 000 000 MHz CH1 Markers REF=1 2:-62 . 875 dB 305. 000 MHz PRm SPAN 60. 000 000 MHz CH1 S11 CH2 S22 SWR SWR 1 / 1 / 26 Mar 2012 07:59:38 1: 1. 4964 305. 000 000 MHz 2: 2. 4042 305. 000 000 MHz REF 1.497 REF 2.405 PRm 3:-55 . 424 dB 610. 000 MHz 1 Cor 1 PRm 2 Cor 3 2 START . 010 000 MHz STOP1 000. 000 000 MHz I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Tel: 82-32-621-1213 Fax: 82-32-621-1218 CENTER 305. 000 000 MHz http://www.itf.co.kr SPAN 60. 000 000 MHz [email protected] 2013. 03. 27 Rev 1.0