HO1126 • • • SAW Frequency Stabilization Fundamental-Mode Oscillation at 1090.0 MHz Ideal for IFF Transponder Applications 1090.0 MHz SAW Oscillator The frequency of this oscillator is stabilized by surface-acoustic-wave (SAW) technology. This results in excellent performance from a compact, rugged, hermetically-sealed oscillator operating at the fundamental frequency of 1090.0 MHz. The high-reliablity HO1126 is designed for use in identify-friend-or-foe (IFF) radar transponders in military aviation. Military Screening is available as an option. The HO1126 is a surface-mountable flatpack version of the HO1081 oscillator. Absolute Maximum Ratings Rating DC Supply Voltage Ambient Temperature Value Units 0 to +13 VDC Powered -55 to +105 Storage -55 to -125 FP 18-8 Case °C Electrical Characteristics Characteristic Operating Frequency Absolute Frequency Tolerance from 1090.0 MHz RF Output Power Discrete Spurious Sym fO ∆fO PO DC Power Supply 3, 6 1089.750 Typical 1090.000 +10 ZO 3 Operating Load VSWR GL 3, 5 VCC 3, 6 Operating Current MHz -35 <-100 -100 2, 3, 4 Nominal Impedance Operating Ambient Temperature Units 1090.250 -25 Nonharmonic 1 kHz Offset Operating Voltage Maximum +12 2, 3, 4 10 kHz Offset RF Impedance 1, 7 Minimum Second Harmonics Third and Higher Harmonics SSB Phase Noise Notes 3, 6 Lid Symbolization (YY=Year, WW=Week) kHz +13 -20 dBm -30 -80 dBc -90 -120 dBc/Hz -110 Ω 50 11.75 ICC TA ±250 12.0 1.5:1 12.25 VDC 35 40 mA +105 °C -55 RFM HO1126 YYWW BLOCK DIAGRAM CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. COCOM CAUTION: Approval by the U.S. Department of Commerce is required prior to export of this device. V CC Notes: 1. 2. 3. 4. 5. 6. 7. One or more of the following United States patents apply: 4,616,197; 4,610,681; and 4,761,616. Unless noted otherwise, all specifications are listed at TA = +25°C ±2°C, VCC = nominal voltage ±0.01 VDC, and load impedance = 50 Ω with VSWR ≤ 1.5:1. The design, manufacturing process, and specifications of this device are subject to change without notice. Applies to oscillator only and not to sidebands caused by external electrical or mechanical sources. (Dedicated external voltage regulation with low-frequency filtering for the DC power supply and proper circuit board layout are recommended for optimum spectral purity.) For specified maximum operating load VSWR (any angle) at FO. (No instability or damage will occur for any passive load impedance.) For any combination of VCC and TA within the specified operating ranges. Applies for any combination of Note 5 and 6 conditions. RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. RF OUTPUT SAW Oscillator Buffer Amplifier ELECTRICAL CONNECTIONS Ground 1 18 Vcc Case Ground 2 17 Case Ground Top View Case Ground 8 RF Output 9 11 Case Ground 10 Ground E-mail: [email protected] http://www.rfm.com HO1126-101899 Page 1 of 2 1090.0 MHz FP18-8 SAW Oscillator Metal Flatpack with 8 leads in a 18-lead Flatpack configuration RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. E-mail: [email protected] http://www.rfm.com HO1126-101899 Page 2 of 2