RO2112

Features:

• Ideal for European 433.92 MHz Superhet Receiver LOs
• Very Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Low-Profile TO39 Case




Specifications

Characteristic Symbol Minimum Typical Maximum Units Center Frequency (+25 C) Absolute Frequency fC 433.345 433.495 MHz Tolerance from 433.420 MHz ?fC 75 kHz Insertion Loss IL 1.3 1.5 dB Quality Factor Unloaded Q QU 10800 50 Ohm Loaded Q QL 1300 Temperature Stability Turnover Temperature TO 20 35 50 C Turnover Frequency fO fc +1.6 kHz Frequency Temperature Coefficient FTC 0.037 ppm/C2 Frequency Aging Absolute Value during the First Year |fA| ?10 ppm/yr DC Insulation Resistance between Any Two Pins 1.0 MOhm RF Equivalent RLC Model Motional Resistance RM 16 19 Ohm Motional Inductance LM 63.4534 uH Motional Capacitance CM 2.12504 fF Pin 1 to Pin 2 Static Capacitance CO 2.0 2.3 2.6 pF Transducer Static Capacitance CP 2.0 pF Test Fixture Shunt Inductance LTEST 60 nH Lid Symbolization RO2112

Rating	Value	Units
CW RF Power Dissipation (See Typical Test Circuit)	+0	dBm
DC Voltage Between Terminals(Observe ESD Precautions)	±30	VDC
Case Temperature	-40 to +85

Description

The RO2112 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides
reliable, fundamental-mode, quartz frequency stabilization of local oscillators operating at approximately 433.42 MHz. The RO2112 is designed for IC based 433.92 MHz superhet receivers with 500 kHz IF (Philips UAA3201T). Applications include remote-control and wireless security devices operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100.