SAW Components Data Sheet B3681 SAW Components B3681 Low-Loss Filter 422,5 MHz Data Sheet Ceramic package QCC8B Features Low-loss filter (RX) for Trunked Radio Usable bandwidth 5 MHz No matching required for operation at 50 Ω Package for Surface Mounted Technology (SMT) ● Hermetically sealed ceramic package ● ● ● ● Terminals ● Gold-plated typ. Dimensions in mm, approx. weight 0,07 g Pin configuration 1 2 5 6 3, 7 4, 8 Type B3681 Input Input ground Output Output ground Ground Case ground Ordering code B39421-B3681-Z810 Marking and Package Packing according to according to C61157-A7-A46 F61074-V8037-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power TA Tstg VDC Ps -30 / +75 -40 / +85 0 10 2 ˚C ˚C V dBm Jul 05, 2000 source impedance 50 Ω SAW Components B3681 Low-Loss Filter 422,5 MHz Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: TA = +15 ... +35 ˚C ZS = 50 Ω ZL = 50 Ω Nominal frequency fN Maximum insertion attenuation 420,0 MHz ... 425,0 MHz αmax Amplitude ripple (p-p) 420,0 MHz ... 425,0 MHz ∆α Return loss (Input and Output) 420,0 MHz ... 425,0 MHz min. typ. max. — 422,5 — — 3,0 3,5 dB — 0,7 1,2 dB 12,0 14,0 — MHz dB VSWR 420,0 MHz ... 425,0 MHz — Absolute attenuation 0,3 MHz ... 335,0 MHz 335,0 MHz ... 410,0 MHz 410,0 MHz ... 415,0 MHz 442,0 MHz ... 510,0 MHz 510,0 MHz ... 1105,0 MHz 1105,0 MHz ... 1800,0 MHz αabs Temperature coefficient of frequency TCf 3 1,5:1 2,0:1 40 25 25 20 40 20 60 45 35 45 45 25 — — — — — — dB dB dB dB dB dB — – 36 — ppm/K Jul 05, 2000 SAW Components B3681 Low-Loss Filter 422,5 MHz Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: TA = -30 ... +75 ˚C ZS = 50 Ω ZL = 50 Ω Nominal frequency fN Maximum insertion attenuation 420,0 MHz ... 425,0 MHz αmax Amplitude ripple (p-p) 420,0 MHz ... 425,0 MHz ∆α Return loss (Input and Output) 420,0 MHz ... 425,0 MHz min. typ. max. — 422,5 — — 3,0 3,5 dB — 0,8 2,0 dB 12,0 14,0 — MHz dB VSWR 420,0 MHz ... 425,0 MHz — Absolute attenuation 0,3 MHz ... 335,0 MHz 335,0 MHz ... 410,0 MHz 410,0 MHz ... 415,0 MHz 442,0 MHz ... 510,0 MHz 510,0 MHz ... 1105,0 MHz 1105,0 MHz ... 1800,0 MHz αabs Temperature coefficient of frequency TCf 4 1,5:1 2,0:1 40 25 25 20 40 20 60 45 35 45 45 25 — — — — — — dB dB dB dB dB dB — – 36 — ppm/K Jul 05, 2000 SAW Components B3681 Low-Loss Filter 422,5 MHz Data Sheet Transfer function Transfer function (pass band; +15 ˚C ... +35 ˚C) 5 Jul 05, 2000 SAW Components B3681 Low-Loss Filter 422,5 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, OFW E NK 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 Jul 05, 2000