• Ideal for 314.85 MHz Unlicensed Transmitters
• Transmission Rates of up to 10kbps
• Compact, Surface-Mount Case with <110 mm2 Footprint
The HX1009 is a miniature hybrid transmitter designed for data transmission using on-
off keyed (OOK) modulation. The transmitter is stabilized by a quartz SAW device for
long-term frequency stability. The HX1009 is designed specifically for unlicensed trans-
mitters operating at 314.85 MHz.
Tolerance from 314.85 MHz
RF Output Power into 50 Ω at 25°C
Within Specified Temperature Range
Harmonic Spurious Emissions
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
Data Timing Parameters
Modulation Rise Time
Modulation Fall Time
Operating Case Temperature Range
Lid Symbolization (in addition to Lot and/or Date Codes)
1, 2, 3, 4, 10
2, 4, 5, 10
2, 3, 4, 5
2, 3, 4, 5
3, 4, 5
3, 4, 5, 6
3, 4, 5, 8
CAUTION: Electrostatic Sensitive Device.
Observe precautions for handling.
1. One or more of the following United States patents apply: 4,454,488;
4,616,197; 4,670,681; and 4,760,352.
2. Typically, equipment utilizing this device requires emissions testing and
government approval, which is the responsibility of the equipment manu-
3. Applies over the specified range of operating temperature.
4. Applies over the specified range of operating power supply voltage.
5. The design, manufacturing process, and specifications of this device are
subject to change without notice.
6. The maximum modulation bandwidth (and data rate) is dependent on the
characteristics of the external encoding circuitry (not included).
7. Unless noted otherwise, case temperature TC = +25°C ± 2°C, test load
impedance = 50 Ω, and modulation input is at logic HIGH.
8. The maximum operating current occurs at the maximum specified power supply voltage
and maximum specified operating temperature.
9. Standby current is defined as the supply current consumed with the modulation input at
10 Improper antenna loading affects performance of HX device.
Absolute Maximum Ratings
Power Supply and/or Modulation Input Voltage
Nonoperating Case Temperature
Ten-Second Soldering Temperature
-40 to +85
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
©1998 by RF Monolithics, Inc. The stylized RFM logo and RFM are registered trademarks of RF Monolithics, Inc.
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