NuPower
TM
C30R01 User Manual
Rev 1.0
9
4.2
DC POWER
The nominal supply voltage for the NuPower C30R01 is +28 VDC; The acceptable supply voltage range is
+27 to +30 VDC.
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 +0.2 VDC) places the unit in
transmit
mode. The user can either
connect the RF Enable line to pins, 1, 2, 6 & 8 on the CTRL/PWR interface connector, or an open drain
logic line capable of sinking 500
µ
A to place the unit in
transmit
mode.
4.5
TEMP FLAG
This signal is an output to indicate an over-temperature condition in the NuPower C30R01. A logic high
(+5 VDC) indicates normal operation, while a logic low (0 VDC) indicates an over-temperature condition.
The NuPower C30R01 incorporates internal logic circuitry that turns off the DC bias to the RF transistors.
Caution: The amplifier should be shut down and allowed to cool off when the over-
temperature flag is set low to avoid damage to the module.
