PA2423U-EK1
RangeChargerTM 2.4 GHz BluetoothTM Power Amplifier Evaluation Kit
Evaluation Board Schematic
Figure 2: PA2423U Evaluation Board Schematic Diagram
Please Note: The RFOUT connector forms part of the output match of the power amplifier.
Pin
Pin Number
Description
Supply Voltage
Ground
Recommended setting
Connect to system supply voltage
Connect to system ground
Use this VCC to connect to VCTL signal
with a shorting link
VCC
GND
VCC
1
2
3
Supply Voltage
VCTL
4
Power and Gain Control Voltage
Connect to 3.3 V (VCC) for maximum
gain and power output. For power
control connect to a variable voltage
source between 0 V and 3.3 V.
Provided as a ground connection for the
VCTL signal
Use this VCC to connect to VRAMP
signal with a shorting link
0 V – 1.5 V applied = Device Disabled
2 V – VCC applied = Device Enabled
Provided as a ground connection for the
VRAMP signal
GND
VCC
5
6
7
8
Ground
Supply Voltage
PA Enable Pin
Ground
VRAMP
GND
Table 1: Power and Analog I/O Header (JP3)
Note: It is recommended to use proper engineering connection practices by making RF and digital connections prior
to turning on the power supply.
131-DST-02 Rev 1.3 Apr-19-2006
Confidential
2 of 8
QA041906
SIGE [ SIGE SEMICONDUCTOR, INC. ]
