Shure UHF Wireless System User Manual Supplement page 4

MICROPHONE
ELEMENT
NOTE: LAVALIER MIC TIES PINS 3 AND 4
TOGETHER; GUITAR CABLE DOES NOT.
U2 Transmitter Input
Input Configuration:
Actual Impedance:
Maximum Input Level:
U2 Transmitter Output
Connector:
Actual Impedance:
Nominal Output Level:
Maximum Output Level:
Pin Assignments:
2
2
4
4
3
3
1
1
U1L (LEMO 4 PIN) MIC JACK BOARD
499 Ω
1
499 Ω
2
10K Ω
3
4
FIGURE 1
3 Vp–p (0.5 dBV) for 1% THD at minimum gain setting
4
U1/U1H MIC JACK BOARD
500 Ω
20K Ω
500 Ω
27 pF
AUDIO
27 pF
BIAS
27 pF
SHIELD
Unbalanced, active
20 kΩ
using 1 kHz signal.
SMC
50 Ω
+10 dBm
+11 dBm
Shell = Ground
Center = Signal
+5 V
27 pF
AUDIO
GROUND