RP1239

® RP1239 315.0 MHz SAW Resonator Designed for 315 MHz Transmitters Nominal Insertion Phase Shift of 180° at Resonance Quartz Stability Rugged, Hermetic, Low-Profile TO39 Case The RP1239 is a two-port, 180° surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides reliable, fundamental-mode, quartz frequency stabilization of low-power AM and FSK transmitters operating at 315.0 MHz for use in the United Kingdom under DTI MPT 1340 and in the USA under FCC Part 15. Applications include remote-control and wireless security devices. This is a pin-for-pin replacement in preexisting transmitter circuits utilizing two-port, 180° SAW resonators. Absolute Maximum Ratings Rating CW RF Power Dissipation (See: Typical Test Circuit) DC Voltage Between Any Two Pins (Observe ESD Precautions) Case Temperature Value +0 ±30 -40 to +85 Units dBm VDC °C TO39-3 Case Electrical Characteristics Center Frequency Insertion Loss Quality Factor Temperature Stability Unloaded Q 50 Ω Loaded Q Turnover Temperature Turnover Frequency Frequency Temp. Coefficient Frequency Aging RF Equivalent RLC Absolute Value during First Year Motional Resistance Motional Inductance Motional Capacitance Shunt Static Capacitance Lid Symbolization (in addition to Lot and/or Date Codes) DC Insulation Resistance between Any Two Pins RM LM CM CO 5, 6, 9 1.9 5, 7, 9 Characteristic Absolute Frequency Tolerance from 315.000 MHz Sym fC ∆fC IL QU QL TO fO FTC |fA| 6 5 1.0 84 758.027 0.336771 2.2 RFM ...