RFM offers a full set of custom embedded wireless networking solutions like Zigbee wireless mesh sensor networks, RF modules, IC transceiver, IC transmitters and IC receivers. RFM, Inc. manufactures low power wireless and RF radio modules, wireless mesh nodes for distributed sensing on distributed sensor networks. Low Power radio, n../arrowband and short range devices, front end saw filters, active RFID, RFIC, coupled resonator filters, single silicon chips in the 70MHZ and 300-1000Mhz range.

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RF Components
Products Guide



Wireless Device
Selection Guide

HO1081-4

25x12.8mm case
1090 MHz SAW Oscillator

Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.


• SAW Frequency Stabilization
• Fundamental-mode Oscillation at 1090.0 MHz
• Ideal for ATC/TCAS Transponder Applications
• Complies with Directive 2002/95/EC (RoHS)
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 07/16/10

download Package Specs

  • Features
  • Specs
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The frequency of this oscillator is stabilized by UHF surface-acoustic-wave (SAW) technology, providing excellent performance in a compact, rugged oscillator operating at the fundamental frequency of 1090.0 MHz. The highly-reliable HO1081-4 is designed for use in Mode-S Air Traffic Control Transponders/Traffic Alert and Collision Avoidance Systems (TCAS).

   
Electrical Characteristics
Characteristic Symbol Minimum Typical Maximum Units
Operating Frequency Absolute Frequency fO 1089.75 1090.00 1090.25 MHz
Tolerance from 1090.0 MHz ?fO ±250 kHz
RF Output Power PO +10 +12 +13 dBm
Start-up Time 500 ns
Discrete Spurious Second Harmonics -25 -20 dBc
Third and Higher Harmonics -35 -30 dBc
Nonharmonic <-100 -80 dBc
SSB Phase Noise 1 kHz Offset -90 dBc/Hz
10 kHz Offset -110 dBc/Hz
RF Impedance Nominal Impedance ZO 50 Ohm
Operating Load VSWR GL 1.5:1
DC Power Supply Operating/Enable Voltage VCC 11.75 12.00 12.25 VDC
Operating Current ICC 37 40 mA
Operating Ambient Temperature TA -55 +105 °C

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