SAW Components Data Sheet R2712 SAW Components R2712 Resonator 804.50 MHz Data Sheet SMD Ceramic package QCC8C Features ■ 2-port resonator ■ nominal 180˚-phase at resonance ■ Provides reliable, fundamental mode, quartz fre- quency stabilization i.e. in transmitters or local oscillators ■ Passivation layer: Protec Terminals ■ Ni, gold plated Dimensions in mm, approx. weight 0,1 g Pin configuration 2 6 7 3 4,8 Type R2712 Input / Ouptput Output / Input Ground (Input / Output) Ground (Output / Input) Ground (case) Ordering code B39801-R2712-U310 Marking and Package Packing according to according to C61157-A7-A56 F61074-V8169-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power TA Tstg VDC Ps –45/+85 –45/+85 0 0 2 ˚C ˚C V dBm between any terminals Oct 02, 2003 SAW Components R2712 Resonator 804.50 MHz Data Sheet Characteristics TA = 25 ˚C ZS = 50 Ω ZL = 50 Ω Reference temperature: Terminating Source impedance: Terminating Load impedance: min. typ. max. 804,25 804.5 804,75 MHz — — 3000 6300 6,3 140 3700 7500 8,3 — — — dB ˚ el. — — C1 L1 R1 C0 — — — — 0,293 133,8 91 1,6 — — — — fF µH Ω pF TCf — –0,03 — ppm/K2 T0 15 — 35 ˚C Center frequency (center frequency between 3 dB points) fc Minimum insertion attenuation Phase at fc Loaded quality factor Unloaded quality factor αmin ϕ QL QU Ageing of fc Equivalent circuit elements Motional capacitance Motional inductance Motional resistance Input / Output capacitance Temperature coefficient of frequency 1) Turnover temperature 1) Temperature dependence of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) 3 Oct 02, 2003 −10/+40 ppm SAW Components R2712 Resonator 804.50 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW CE AE PD P.O. Box 80 17 09, D-81617 München EPCOS AG 2003. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. 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. 4 Oct 02, 2003