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R771

EPCOS
Part Number R771
Manufacturer EPCOS
Description SAW Components
Published Mar 25, 2011
Detailed Description SAW Components Data Sheet R 771 www.DataSheet4U.com SAW Components Resonator Data Sheet R 771 314,875 / 315,125 MHz C...
Datasheet PDF File R771 PDF File

R771
R771

Overview
SAW Components Data Sheet R 771 www.
DataSheet4U.
com SAW Components Resonator Data Sheet R 771 314,875 / 315,125 MHz Ceramic package QCC8C Features s 1-port resonator (2 Resonators in 1 housing) s Provides reliable, fundamental mode, quartz fre- quency stabilization i.
e.
in transmitters or local oscillators s Protection layer: Protec Terminals s Ni, gold plated Dimensions in mm, approx.
weight 0,1 g Pin configuration 1 3 7 5 4,8 2,6 Input Reso 1 Input Reso 2 Output Reso 1 Output Reso 2 Ground (case) float R1 L1 C1 R2 L2 C2 C01 1 7 3 Packing C02 5 Type R 771 Ordering code B39311-R 771-U310 Marking and Package according to C61157-A7-A56 according to F61074-V8169-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage www.
DataSheet4U.
com Source power TA Tstg VDC Ps –45/+120 –45/+120 12 0 ˚C ˚C V dBm between any terminals 2 Mar 03, 2004 SAW Components Resonator Data Sheet Characteristics Resonator 1 Reference temperature: Terminating source impedance: Terminating Load impedance: R 771 314,875 / 315,125 MHz TA = 25 ˚C ZS = 50 Ω ZL = 50 Ω min.
typ.
314,875 250,0 1,3 13200 — 2,39 106,94 16 3,1 – 0,03 — max.
314,925 MHz 300,0 1,6 — ± 50 — — 22 — — 30 ppm fF µH Ω pF ppm/K2 ˚C KHz dB Center frequency Resonator 11) fc 314,825 200,0 — 9600 — Frequency offset Resonator 2 to Resonator 1 foffset Minimum insertion attenuation Unloaded quality factor Ageing of fc Equivalent circuit elements Motional capacitance Motional inductance Motional resistance Parallel capacitance2) Temperature coefficient of frequency3) Turnover temperature αmin QU C1 L1 R1 C01 TCf T0 — — — — — 0 1) Center frequency is defined as the maximum of the real part of the admittance.
2) If used in two port configuration (pin 1-input, pin 7-output) C0 is reduced by approx.
0,3 pF.
3) Temperature dependence of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) w w w .
D a t a S h e e t 4 U .
c o m 3 Mar 03, 2004 SAW Components...


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