ndr315

NEDI SAW Resonator NDR315 NANJING ELECTRONIC DEVICES INSTITUTE http://www.ndsaw.com E-mail: sales@ndsaw.com Tel: +86-25-85801658 Fax: +86-25-85801698 The NDR315 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile metal TO-39 case. It provides reliable, fundamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 315.000 MHz. 1.Package Dimension (TO-39) 2.Marking 3.Equivalent LC Model and Test Circuit NDR315 Color: Black or Blue 4.Typical Application Circuits 1) Low-Power Transmitter Application 2) Local Oscillator Application 5.Typical Frequency Response 6.Temperature Characteristics Pin Configuration 1 Input / Output 2 Output / Input 3 Case Ground Dimension Data (unit: mm) A 9.30±0.20 B 5.08±0.10 C 3.40±0.20 D 3±0.20∕5±0.20 E 0.45±0.20 NEDI SAW Resonator NDR315 NANJING ELECTRONIC DEVICES INSTITUTE http://www.ndsaw.com E-mail: sales@ndsaw.com Tel: +86-25-85801658 Fax: +86-25-85801698 7.Performance 7-1.Maximum Ratings Rating Value Unit CW RF Power Dissipation P 0 dBm DC Voltage Between Any two Pins VDC ±30 V Storage Temperature Range Tstg -40 to +85 ℃ Operating Temperature Range TA -10 to +60 ℃ 7-2.Electronic Characteristics Characteristic Sym Minimum Typical Maximum Unit Absolute Frequency fC 314.925 315.075 MHz Center Frequency (+25℃) Tolerance from 315.000MHz ∆fC ±75 kHz Insertion Loss IL 1.5 2.0 dB Unloaded Q QU 12,500 Quality Factor 50 Ω Loaded Q QL 2,000 Turnover Temperature T0 25 39 55 ℃ Turnover Frequency f0 fC kHz Temperature Stability Frequency Temperature Coefficient FTC 0.032 ppm/℃2 Frequency Aging Absolute Value during the First Year |fA| ≤10 ppm/yr DC Insulation Resistance Between Any Two Pins 1.0 MΩ Motional Resistance RM 19 26 Ω Motional Inductance LM 120.3114 µH Motional Capacitance CM 2.1240 fF RF Equivalent RLC Model Pin 1 to Pin 2 Static Capacitance C0 2.3 2.6 2.9 pF LCAUTION: Electrostatic Sensitive Device. Observe precautions for handling! ○C NEDI 2003. All Rights Reserved. 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 case temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC) 2]. 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 Pin1 and Pin2. 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 sales@ndsaw.com.