LGE433A SAW Resonator The LGE433A is a true one- port ， surface- acoustic- wave( SAW) resonator in a low- profile QCC4A case. It provides reliable ， fundamental- mode ， quartz frequency stabilization of fixed- frequency transmitters operating at 433.92 MHz. 1. Package Dimension (QCC4A) 2. Marking Pin 1 3 Connection Input / Output Output / Input 2/4 Case Ground Sign Data(unit: mm) A 1.2 B 0.8 C 0.5 D 1.4 E 5.0 F 3.5 3. Equivalent LC Model and Test Circuit LGE R433A Color: Black or Blue 4. Typical Application Circuit 1) Typical Low-Power Transmitter Application 5. Typical Frequency Response 2) Typical Local Oscillator Application 6.Temperature Characteristics LGE433A SAW Resonator 7. Performance 7-1.Maximum Ratings Rating CW RF Power Dissipation DC Voltage Between Terminals Storage Temperature Range Operating Temperature Range P VDC Tstg TA Value Units 0 ±30 -40 to +85 -40 to +85 dBm V ℃ ℃ 7-2.Electronic Characteristics Characteristic Center Frequency (+25℃) Absolute Frequency Temperature Stability Minimum fC 433.845 Maximum Units 433.995 MHz ∆ fC IL 1.5 Unloaded Q QU 11274 50 Ω Loaded Q QL 1800 Turnover Temperature TO Turnover Frequency fO fc kHz FTC 0.037 ppm/℃ |fA| ≤10 ppm/yr Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year DC Insulation Resistance Between Any Two Pins RF Equivalent RLC Model Typical Tolerance from 433.920 MHz Insertion Loss Quality Factor Sym ±75 25 40 kHz 1.8 dB 55 ℃ 2 1.0 MΩ Ω Motional Resistance RM 19 Motional Inductance LM 78.605 µH Motional Capacitance CM 1.7132 fF Pin 1 to Pin 2 Static Capacitance CO 1.9 pF 23 CAUTION: Electrostatic Sensitive Device. Observe precautions for handling! NOTES: 1. The center frequency, fC, is measured at the minimum IL point with the resonator in the 50Ω test system. 2. Unless noted otherwise, case temperature TC = +25°C±2°C. 3. Frequency aging is the change in fC with time and is specified at +65°C or less. Aging may exceed the specification for prolonged temperatures above +65°C. Typically, aging is greatest the first year after manufacture, decreasing in subsequent years. 4. Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f0. The nominal frequency at any 2 case temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC) ]. 5. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance C0 is the measured static (nonmotional) capacitance between the two terminals. The measurement includes case parasitic capacitance. 6. Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and C0. 7. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. 8. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. 9. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. 10. For questions on technology, prices and delivery please contact our sales offices or E-mail :