SAW Components Data Sheet B4848 SAW Components B4848 400,0 MHz Low-Loss Filter for Mobile Communication Data Sheet Ceramic package QCC8C Features ■ ■ ■ ■ Low-loss IF filter for mobile telephone Channel selection in GSM systems Ceramic SMD package High stopband attenuation Terminals ■ Gold-plated Ni Dimensions in mm, approx. weight 0,1 g Pin configuration 2 1 6 5 7 4, 8 3 Input Input ground or balanced input Output Output ground or balanced output External coil Case – ground Not connected Type Ordering code Marking and Package according to Packing according to B4848 B39401-B4848-U310 C61157-A7-A56 F61074-V8070-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operating temperature range Storage temperature range DC voltage Source power T Tstg VDC Ps – 20/ +75 – 25/ +85 0 10 2 ˚C ˚C V dBm Dec 20, 1999 SAW Components B4848 400,0 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics T ZS ZS Lc Operating temperature range: Terminating source impedance: Terminating load impedance: External coil: = -10 to +55 ˚C = 900 Ω || -0,7 pF = 900 Ω || -0,7 pF = 82 nH min. typ. Nominal frequency fN — 400,00 Minimum insertion attenuation (including loss in matching elements) Amplitude ripple (p-p) fN - 70,0 kHz ... fN + 70,0 kHz fN - 90,0 kHz ... fN + 90,0 kHz Group delay ripple (p-p) fN - 70,0 kHz ... fN + 70,0 kHz fN - 90,0 kHz ... fN + 90,0 kHz Relative attenuation (relative to αmin) fN - 95,00 MHz ... fN - 13,00 MHz fN - 13,00 MHz fN - 13,00 MHz ... fN - 3,00 MHz fN - 3,00 MHz ... fN - 1,00 MHz fN - 1,00 MHz ... fN - 0,60 MHz fN - 0,60 MHz ... fN - 0,40 MHz fN - 0,40 MHz ... fN - 0,20 MHz αmin — 3,9 5,5 dB — — 0,2 0,4 1,5 3,0 dB dB — — 0,5 0,7 1,5 2,0 µs µs 55 65 55 45 40 22 — 78 77 66 53 51 43 5 — — — — — — — dB dB dB dB dB dB dB — 22 40 45*) 55 5 31 50 50 63 — — — — — dB dB dB dB dB — 900 || 0,7 900 || 0,7 — Ω || pF — — Ω || pF TCf — -0,036 — ppm/K2 T0 — 20 — ˚C fN + 0,20 MHz fN + 0,40 MHz fN + 0,60 MHz fN + 1,00 MHz fN + 3,00 MHz ... ... ... ... ... αrel Temperature coefficient of frequency 1) Frequency inversion point *) MHz ∆τ fN + 0,40 MHz fN + 0,60 MHz fN + 1,00 MHz fN + 3,00 MHz fN + 95,00 MHz dependence of fc: — ∆α Impedance within the passband Input: ZIN = RIN || CIN Output: ZOUT = ROUT || COUT 1) Temperature max. fc(T) = fc(T0)(1 + TCf(T – T0)2) In the frequency range from 401,5 MHz to 402,5 MHz there exists one spurious response with a maximum 3 dB - bandwidth of 200 kHz. The minimum attenuation αrel of this spurious response is more than 40 dB. 3 Dec 20, 1999 SAW Components B4848 400,0 MHz Low-Loss Filter for Mobile Communication Data Sheet Test matching network to 50 Ω (element values depend on PCB layout): Ls1 Ls2 Lc 4 Dec 20, 1999 = 39 nH = 39 nH = 82 nH SAW Components B4848 400,0 MHz Low-Loss Filter for Mobile Communication Data Sheet Transfer function: Transfer function (pass band): 5 Dec 20, 1999 SAW Components B4848 400,0 MHz Low-Loss Filter for Mobile Communication Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, OFW E MF P.O. Box 80 17 09, D-81617 München EPCOS AG 1999. All Rights Reserved. As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or the international representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our sales offices. 6 Dec 20, 1999