NuPower
TM
S100A01 User Manual
Rev 1.0
8
Figure 3: Micro-D Hybrid, 7 +2-pin Socket Locations
*Do not connect the Temperature Flag to DC Power (+28 Volts input). The Temperature Flag can be used
to monitor thermal status.
4.2
DC POWER
The nominal supply voltage for the NuPower S100A01 is +28 VDC. The acceptable supply voltage range
is +26 to +32 VDC. If a voltage above 32VDC is applied, the drain bias to internal amplifiers will be
removed and the transmit path will be non-operational.
4.3
GROUND
The signal and power grounds are tied together in the PA module.
4.4
RF ENABLE
This signal is the logic control input that designates whether the unit is in transmit or standby mode. The
RF Enable line is pulled high internally placing the PA module in
standby
mode. If the pin is left floating
(i.e. not connected), the unit will default to
standby
mode.
Grounding the pin (i.e. a voltage below +0.8 VDC) places the unit in
transmit
mode. The user can either
connect the RF Enable line to pins A1 or 3 on the CTRL/PWR interface connector, or an open drain logic
line capable of sinking 500 µA to place the unit in
transmit
mode.
Do not connect the RF Enable line to DC Power (+28 Volts input). No input voltage is required on the RF
Enable line.
