4
27 pF
20K
Ω
27 pF
+5 V
AUDIO
GROUND
U1 MIC JACK BOARD
2
1
4
500
Ω
500
Ω
MICROPHONE
ELEMENT
3
2
1
3
4
NOTE:
LAVALIER MIC TIES PINS 3 AND 4
TOGETHER; GUITAR CABLE DOES NOT.
27 pF
499
Ω
499
Ω
3
27 pF
10K
Ω
AUDIO
SHIELD
(LEMO 4 PIN) MIC JACK BOARD
1
4
2
BIAS
Fig. 1A
Fig. 1B
Fig. 1C
U1 Transmitter Output
Antenna Impedance:
50
Ω
Nominal Output Level:
+10 dBm
Maximum Output Level:
+13.5 dBm
U2 Transmitter Input
Input Configuration:
Wireless microphone element
Actual Impedance:
20 k
Ω
Maximum Input Level:
3 Vp–p (0.5 dBV) using 1 kHz signal for 1% THD at minimum
gain setting without pad.
U2 Transmitter Output
Connector:
SMC (Internal)
Pin Assignments:
Shell = Ground
Center = Signal
Antenna Impedance:
50
Ω
Nominal Output Level:
+10 dBm
Maximum Output Level:
+13.5 dBm
