User's Manual

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9
K-Band Miniature Doppler Transceiver Module
Application Note
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ST Electronics (Sa
tcom & Sensor Systems) Pte Ltd
1 Ang Mo Kio Electronics Park Road, #06-02, ST Engineering Hub, Singapore 567710
Tel: [phone] Fax: [phone] Email: [e-mail]
Website: www.agilsense.com ( Regn. No.: 199103901W )
3. Power Supply
AP9 series module operates at +5 Vdc for Continious wave (CW) operation. There are also modules
(e.g. AP96-3) designed to operate at +3 Vdc.
The module can be powered by +V
s
low duty cycle pulsed trains of up to 2KHz repetition frequency for
lower power consumption. Sample & Hold circuit at the IF output is required for pulse operation.
5. Transmit Frequency
The transmitting frequencies (ISM band) and EIRP (Effective Isotropic Radiated Power) of various
modules are factory-set and are not user-adjustable. Table 1 shows the EIRP and transmitting
frequencies of the various AP9 series modules.
Local radio communication authority regulates the use of transmitting devices. Though user license
may be exempted, type approval of equipment or other regulation compliance may be required.
CAUTION:
Plugging-in the module into an active power supply may not itself cause any damage, but any
accidental short to ground during this process may cause component damage in the module.
It is therefore recommended that power supply to be SWITCHED OFF first before connecting
the modules.
4. Before Powering Up
Connect the power supply, ground and
amplifier
circuitry to the designated terminals. Designation
of the connection terminals are printed on the
PCB as shown in diagram (right).
Figure 3: Terminals designation