B3893_1

SAW Components SAW IF filter GSM Series/type: Ordering code: Date: Version: B3893 B39251B3893H310 February 28, 2008 2.0 © EPCOS AG 2008. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS’ prior express consent is prohibited. SAW Components SAW IF filter Data sheet Revision History: Changes compared to previous iteration issue ISSUE B3893 2.0 T. Gaertner pass band width changed from 240 kHz to 704 kHz ORIGINATOR DETAIL SPEC CHANGES B3893 248.6 MHz DATE 28.02.2008 Please read cautions and warnings and important notes at the end of this document. 2 February 28, 2008 SAW Components SAW IF filter Data sheet Application s Low-loss IF filter for GSM base station s Clean-up filter s Ceramic SMD package B3893 248.6 MHz Features s s s s s s s s Package size 7.0 x 5.0 x 1.33 mm3 Package code QCC12C RoHS compatible Approximate weight 0.25 g Package for Surface Mount Technology (SMT) Ni, gold-plated terminals Electrostatic Sensitive Device (ESD) Filter surface passivated Pin configuration s s s s s 12 2 4, 6 1, 7, 8, 10 3, 9 Input Input ground Balanced output To be grounded Case ground 12 4 2 6 3,9 Please read cautions and warnings and important notes at the end of this document. 3 February 28, 2008 SAW Components SAW IF filter Data sheet Characteristics Temperature range for specification: Terminating source impedance: Termnating load impedance: T = –20 ˚C to +85 ˚C ZS = 50 Ω ZL = 200 Ω min. Nominal frequency Minimum insertion attenuation Passband width αrel ≤ 3.0 dB Amplitude ripple (p-p) fN ± 352.0 kHz Group delay ripple (p-p) fN ± 352.0 kHz Relative attenuation (relative to αmin) 10.0 MHz ... fN – 29.2 MHz @ fN + 22.80 MHz @ fN + 52.00 MHz @ fN + 74.80 MHz @ fN + 104.0 MHz @ fN + 126.8 MHz Temperature coefficient of frequency αrel 45 45 45 45 45 45 TCf — 70 60 70 70 55 70 –36 — — — — — — — ∆τ — 30 100 B3.0dB ∆α — 0.2 0.5 5.0 7.2 — fN αmin — — typ. 248.6 1.3 max. — 3.5 B3893 248.6 MHz MHz dB MHz dB ns dB dB dB dB dB dB ppm/K Maximum ratings Operable temperature range T Storage temperature range Tstg DC voltage VDC Input Power Input Power PIN PIN –40/+85 –40/+85 0 10 20 ˚C ˚C V dBm dBm t