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RF1211, RF1211B, RF1264A

Table of contents:
Info of RF1211
Info of RF1211B
Info of RF1264A

RF1211, RF1211B, RF1264A Selling Leads, Datasheet

MFG:RFM Package Cooled:CAN-TO-39 D/C:9925+

RF1211, RF1211B, RF1264A Datasheet download

Five Points

Part Number: RF1211

MFG: RFM

Package Cooled: CAN-TO-39

D/C: 9925+

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RF1211 General Description

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

RF1211 Maximum Ratings

Characteristic Symbol Minimum Typical Maximum Units Center Frequency at 25C Absolute Frequency fc 314.92 315.00 315.080 MHz Tolerance from 315.0 MHz Dfc 80 dB Insertion Loss IL 1.7 3.0 dB 3 dB Bandwidth BW3 500 700 800 kHz Rejection at fc - 21.4 MHz (Image) 40 50 dB at fc - 10.7 MHz (LO) 15 40 dB Ultimate 80 dB Temperature Operating Case Temp. TC -40 +85 C Turnover Temperature TO 22 37 52 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 86 nH (Pin 1) 82 nH (Pin 2) Shunt Capacitance C 9 pF

RF1211 Features

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

RF1211 Connection Diagram

RF1211B General Description

The RF1211B is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 315.0 MHz receivers. Receiver designs using this filter 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 (especially for automotive keyless entry) operating in the USA under FCC Part 15, in Canada under RSS-210, and in Italy

This coupled-resonator filter (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 is utilized to achieve high performance and very low loss with simple external impedance matching (not included). Our new patent pending solder seal process utilizes a Faraday shield lid, which improves out of band rejection.

RF1211B Maximum Ratings

Rating	Value	Units
Incident RF Power	+13	dBm
DC Voltage between any 2 pins (Observe ESD Precautions)	±30	VDC
Case Temperature5	-40 to +85
Soldering Temperature (10 seconds / 5 cycles max.)	260

RF1211B Features

• Ideal Front-End Filter for Domestic Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Surface-Mount Ceramic Case with 52 mm2 Footprint
• Complies with Directive 2002/95/EC (RoHS)

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