RF1172

Frequency Range :
Bandwidth :
Impedance :
Operating Temperature Range : - 40 C to + 85 C
Packaging : Reel
Product : SAW Filters
Frequency : 433.92 MHz
Termination Style : Radial
Voltage Rating : 30 V
Package / Case : TO-39-3


Features:

• Ideal Front-End Filter for European Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Rugged TO39 Hermetic Package




Specifications

Characteristic Symbol Minimum Typical Maximum Units Center Frequency at 25C Absolute Frequency fc 433.92 MHz Tolerance from 433.92 MHz ?fC 80 kHz Insertion Loss IL 3.5 5.0 dB 3 dB Bandwidth BW3 500 600 800 kHz Rejection at fc - 21.4 MHz (Image) 40 50 dB at fc - 10.7 MHz (LO) 15 30 dB Ultimate 80 dB Temperature Operating Case Temp. TC -40 +85 C Turnover Temperature TO 15 25 40 C Turnover Frequency fO fc MHz Freq. Temp. Coefficient FTC 0.032 ppm/C2 Frequency Aging Absolute Value during the First Year |fA| ?10 ppm/yr External Impedance Series Inductance L 47 nH Shunt Capacitance C 11 pF

Rating	Value	Units
Incident RF Power	+13	dBm
DC Voltage Between Any Two Pins (Observe ESD Precautions)	±30	VDC
Case Temperature5	-40 to +85

Description

Ideal Front-End Filter RF1172 for European Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Rugged TO39 Hermetic Package Complies with Directive 2002/95/EC (RoHS)

The RF1172 is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 433.92 MHz receivers. Receiver designs using RF1172 include superhet with 10.7 MHz or 500 kHz IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-control and security devices operating in Europe under ETSI I-ETS 300 220.

This coupled-resonator filter RF1172 (CRF) uses selective null placement to provide suppression, typically greater than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. RFM's advanced SAW design and fabrication technology of RF1172 is utilized to achieve high performance and very low loss with simple external impedance matching (not included). Quartz construction provides excellent frequency stability over a wide temperature range.