SAW Components Data Sheet B3643 SAW Components B3643 Low-Loss Filter 371,0 MHz Data Sheet Ceramic package QCC10B Features ● ● ● ● IF low-loss filter for wireless LAN systems Channel selection according to IEEE 802.11 Temperature stable Ceramic SMD package Terminals ● Gold plated Dimensions in mm, approx. weight 0,23 Pin configuration 10 5 9 4 2, 7 1, 3, 6, 8 Input Output Input ground Output ground Ground Case ground Type Ordering code Marking and Package according to Packing according to B3643 B39371-B3643-Z710 C61157-A7-A49 F61074-V8035-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power TA Tstg VDC Ps -25 / +70 -40 / +85 0 10 2 ˚C ˚C V dBm source impedance 50 Ω Apr 04, 2001 SAW Components B3643 Low-Loss Filter 371,0 MHz Data Sheet Characteristics TA = -20 .. +60 ˚C ZS = 50 Ω and matching network ZL = 50 Ω and matching network Operating temperature range: Terminating source impedance: Terminating load impedance: min. typ. max. — MHz 11,5 dB MHz MHz Nominal frequency fN — 371,0 Insertion attenuation at fN αN — 10 Pass bandwidth αrel < 1 dB αrel < 3 dB B1dB B3dB 1,3 — 1,6 2,0 — 2,5 — 0,3 1,0 dB — 0,0 ±0,5 dB ∆α Amplitude ripple (p-p) fN - 0,5 MHz ... fN + 0,5 MHz Amplitude slope in passband Group delay ripple (p-p) fN - 0,65 MHz ... fN + 0,65 MHz fN - 1,00 MHz ... fN + 1,00 MHz ∆τ Relative attenuation (relative to αN) fN - 50 MHz ... fN - 15 fN - 15 MHz ... fN - 5 fN + 5 MHz ... fN + 25 fN + 25 MHz ... fN + 50 αrel Temperature dependance of fC: 80 90 120 — ns ns 45 40 40 45 60 55 45 50 — — — — dB dB dB dB TCf — -0,036 — ppm/K2 T0 — 16 — ˚C MHz MHz MHz MHz Temperature coefficient of frequency 1) Turnover temperature 1) — — fC(TA) = fC(T0)(1 + TCf(TA - T0)2) Matching network (Element values depend upon PCB layout) Cp1 = 15 pF Ls2 = 27 nH Ls3 = 22 nH Cp4 = 15 pF 3 Apr 04, 2001 SAW Components B3643 Low-Loss Filter 371,0 MHz Data Sheet Transfer function Transfer function (pass band) 4 Apr 04, 2001 SAW Components B3643 Low-Loss Filter 371,0 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC IS 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. 5 Apr 04, 2001