RO2073A-1

Features:

• Ideal for 315 MHz Automotive-Keyless-Entry Transmitters
• Very Low Series Resistance
• Quartz Stability
• Surface-Mount Ceramic Case with 21 mm²Footprint




Specifications

Characteristic Symbol Minimum Typical Maximum Units Center Frequency at +25 C Absolute Frequency fC 314.925 315.075 MHz Tolerance from 315.000 MHz ?fC 75 kHz Insertion Loss IL 1.3 2.2 dB Quality Factor Unloaded Q QU 15300 50 Ohm Loaded Q QL 2100 Temperature Stability Turnover Temperature TO 10 25 40 C Turnover Frequency fO fC 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 16 29 Ohm Motional Inductance LM 127.450 uH Motional Capacitance CM 2.00299 fF Shunt Static Capacitance CO 2.0 2.3 2.6 pF Test Fixture Shunt Inductance LTEST 110 nH Lid Symbolization 111

Rating	Value	Units
CW RF Power Dissipation (See: Typical Test Circuit)	+0	dBm
DC Voltage Between Any Two Pins (Observe ESD Precautions)	±30	VDC
Case Temperature	-40 to +85
Soldering Temperature	+250

Description

Ideal for 315 MHz Automotive-Keyless-Entry Transmitters Very Low Series Resistance Quartz Stability Surface-Mount Ceramic Case with 21 mm2 Footprint Complies with Directive 2002/95/EC (RoHS)

The RO2073A-1 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 transmitters operating at 315 MHz. This SAW is designed specifically for AM transmitters in automotive-keyless-entry applications operating in the USA under FCC Part 15, in Canada under DoC RSS-210, and in Italy.