RO2081A

Features:

• Ideal for 325 MHz Remote-Control Transmitters
• Very Low Series Resistance
• Quartz Stability
• Surface-Mount, Ceramic Case with 21 mm² Footprint




Specifications

Rating	Value	Units
CW RF Power Dissipation	+0	dBm
DC Voltage Between Terminals (Observe ESD Precautions)	±30	VDC
Case Temperature	-40 to +85
Soldering Temperature	+250
Soldering Temperature (10 seconds / 5 cycles max.)	260

Characteristic Symbol Minimum Typical Maximum Units Frequency (+25 C) Nominal Frequency fC 324.900 325.200 MHz Tolerance from 325.050 MHz ?fC 150 kHz Insertion Loss IL 1.2 2.2 dB Quality Factor Unloaded Q QU 14600 50 Ohm Loaded Q QL 2000 Temperature Stability Turnover Temperature TO 23 38 53 C Turnover Frequency fO fC+2 kHz Frequency Temperature Coefficient FTC 0.032 ppm/C2 Frequency Aging Absolute Value during the First Year |fA| 10 ppm/yr DC Insulation Resistance between Any Two Terminals 1.0 MOhm RF Equivalent RLC Model Motional Resistance RM 15 29 Ohm Motional Inductance LM 109.341 uH Motional Capacitance CM 2.19259 fF Shunt Static Capacitance CO 2.3 2.6 2.9 pF Test Fixture Shunt Inductance LTEST 93 nH Lid Symbolization 189




Description

The RO2081A is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case.It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency oscillators and low power AM transmitters operating at 325 MHz. Typical applications include remote-control and wireless security alarms for us in Israel.

Ideal for 325 MHz Remote-Control Transmitters Very Low Series Resistance Quartz Stability Surface-Mount, Ceramic Case with 21 mm2 Footprint Complies with Directive 2002/95/EC (RoHS)