SAW Resonator LGER433A The LGER433A is a true one- port ， surface- acoustic- wave( SAW) resonator in a low- profile QCC8C case. It provides reliable ， fundamental- mode ， quartz frequency stabilization of fixed- frequency transmitters operating at 433.920 MHz. 1. Package Dimension (QCC8C) Pin Configuration 2 Terminal1 6 Terminal2 4,8 2. Marking Case Ground Sign Data (unit: mm) 1,3,5,7 Sign Data (unit: mm) Empty A 2.08 E 1.2 B 0.6 F 1.35 C 1.27 G 5.0 D 2.54 H 5.0 3.Equivalent LC Model and Test Circuit 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 SAW Resonator LGER433A 7. Performance 7-1.Maximum Rating Rating CW RF Power Dissipation DC Voltage Between Any Two Pins Operating Temperature Value Units +10 ±30V -40 to +85 dBm VDC ℃ 7-2.Electronic Characteristics Characteristic Center Frequency (+25℃) Absolute Frequency Temperature Stability Minimum fC 433.845 Maximum Units 433.995 MHz ±75 kHz IL 1.5 dB Unloaded Q QU 15,974 50 Ω Loaded Q QL 1,900 Turnover Temperature TO Turnover Frequency fO fc kHz FTC 0.037 ppm/℃ |fA| ≤10 ppm/yr Tolerance from 433.920 MHz Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year DC Insulation Resistance Between Any Two Pins RF Equivalent RLC Model Typical ∆ fC Insertion Loss Quality Factor Sym 25 40 55 1.0 ℃ 2 MΩ Motional Resistance RM 19 Ω Motional Inductance LM 79.137 µH Motional Capacitance CM 1.8019 fF Pin 1 to Pin 2 Static Capacitance CO 1.9 pF CAUTION: Electrostatic Sensitive Device. Observe precautions for handling! NOTES: 1. Frequency aging is the change in fC with time and is specified at +65℃or less. Aging may exceed the specification for prolonged temperatures above +65℃. Typically, aging is greatest the first year after manufacture, decreasing in subsequent years. 2. The center frequency, fC ,is the frequency of minimum IL with the resonator in the specified test fixture in a 50 Ω test system with VSWR ≤ 1.2 : 1. Typically, foscillator or ftransmitter is less than the resonator fC. 3. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. 4. Unless noted otherwise , case temperature TC=+25℃±2℃. 5. The design, manufacturing process, and specifications of this device are subject to change without notice. 6 .Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC versus TC , and CO. 7. Turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fO, The nominal center frequency at 2 any case temperature , TC, may be calculated from :f = fO［1-FTC (TO-TC) ］.Typically, oscillator TO is 20℃ less than the specified resonator TO. 8. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only . The capacitance CO is the measured static (nonmotional) capacitance between either pin 1 and ground or pin 2 and ground .The measurement includes case parasitic capacitance with a floating case. For usual grounded case applications (with ground connected to either pin 1 or pin 2 and to the case), add approximately 0.25 pF to CO.