CIRCUIT DESIGN WA-TX-03S 운영 매뉴얼 - 페이지 6
{카테고리_이름} CIRCUIT DESIGN WA-TX-03S에 대한 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. CIRCUIT DESIGN WA-TX-03S 16 페이지. Uhf wireless audio module
페이지 인쇄WA-RX-03S receiver module
CN1
No.
Name
I/O
1
CON
2
LED
O
3
UNA
O
4
VCC
5
AF
O
6
GND
7
ANT
OG_WA-03S_V10e
Description
Terminal for adjustment of mute level.
Connect a 10 to 20 kΩ VR to the terminal for
mute level adjustment.
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The mute level is the threshold level of the
received signal field strength so as not to
output the received signal below the threshold
level.
MUTE LED terminal
The terminal is high when mute is in operation.
It is low when the AF signal is output, so that
the LED connecting the terminal works as an
AF output indicator showing the AF output
status.
The terminal is an open collector and is
connected to a 220Ω resistor (Max 10mA).
LED terminal for unavailable channels.
The terminal is high when any channel other
than CH 1 to 15 is selected.
The LED can be powered directly
Power supply (+) terminal
The voltage range is DC 3.0 to 5 V
A power source without ripple noise should be
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used.
Be sure to connect it with the correct polarity.
To maintain a lower voltage, a protection diode
is not provided in the circuit.
Audio output terminal
Output impedance is 20 kΩ.
Connection to a low input impedance interface
will decrease the output level.
Maximum output level is –10 dBv
When an audio amplifier is used, if the
amplified output is distorted by the MIC input,
insert an attenuator.
GND terminal
The ground is for the power supply and
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antenna radial.
Connect it to a wide ground plane for stable
operation.
Antenna terminal (RF input).
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50 Ω impedance
6
OPERATION GUIDE
Equivalent circuit
Circuit Design, Inc.