R2712
R2712 is SAW Components Resonator manufactured by EPCOS.
Features s 2-port resonator s nominal 180˚-phase at resonance s Provides reliable, fundamental mode, quartz fre- quency stabilization i.e. in transmitters or local oscillators s Passivation layer: Protec Terminals s Ni, gold plated
Dimensions in mm, approx. weight 0,1 g
Pin configuration 2 6 7 3 4,8 Input / Ouptput Output / Input Ground (Input / Output) Ground (Output / Input) Ground (case)
Type R2712
Ordering code B39801-R2712-U310
Marking and Package according to C61157-A7-A56
Packing according to 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
˚C ˚C V d Bm between any terminals
Oct 02, 2003
SAW ponents Resonator Data Sheet
Characteristics Reference temperature: Terminating Source impedance: Terminating Load impedance:
R2712 804.50 MHz
TA = 25 ˚C ZS = 50 Ω ZL = 50 Ω min. typ. 804.5 max. 804,75 MHz
Center frequency (center frequency between 3 d B points) Minimum insertion attenuation Phase at fc Loaded quality factor Unloaded quality factor Ageing of fc Equivalent circuit elements Motional capacitance Motional inductance Motional resistance Input / Output capacitance Temperature coefficient of frequency 1) Turnover temperature
1) Temperature fc
804,25
αmin ϕ QL QU
- - 3000 6300
- 6,3 140 3700 7500
- 0,293 133,8 91 1,6
- 0,03
- 8,3
- -
- d B ˚ el.
- 10/+40 ppm
- -
- -
- 35 f F µH Ω p F ppm/K2 ˚C
C1 L1 R1 C0
- -
- -
- 15
TCf
T0 dependence of fc: fc(TA) = fc(T0)(1 +...