pa2423l SiGe Semiconductor, pa2423l Datasheet - Page 7

• Manufacturer Part Number: pa2423l
• Description: 2.4 Ghz Power Amplifier Ic
• Manufacturer: SiGe Semiconductor

Applications Information
For test and design purposes, SiGe Semiconductor offers an evaluation board for the PA2423L. The order part
number for the evaluation board is PA2423L-EV. The evaluation board is intended to simplify the testing with respect
to RF performance of this power amplifier.
The application note, 13-APP-01 provides the supporting information for using the evaluation board. It contains
information on the schematic, bill of materials and recommended layout for the power amplifier and the input and
output matching networks. To assist in the design process, this layout is available, upon request, in gerber file format.
Using V
V
1.1. During receive mode, V
and the antenna while consuming a modest 1 μA. In transmit mode, V
offers 19 dB to 21 dB of large signal gain. The rise and fall time are in the order of 1-2 μsec.
Using V
V
adjust the gain between -15 dB and 21 dB. Used in combination with a variable drive level to PA2423L, the V
function can greatly optimize the PAE of the system at all four Bluetooth
By applying approximately 1.4 V to V
PA2423L consuming only 15 mA.
By implementing a resistor DAC, the V
programmable outputs.
Package Dimensions
The PA2423L is packaged in a 1.6 mm x 3.0 mm 6 lead QFN package. The underside of the package is an exposed
die-pad structure. This allows for direct soldering to the PCB for enhanced thermal conductivity. The package
dimensions are shown in the drawing below.
13-DST-01 Rev 4.0 Jun-14-2006
RAMP
CTL
is an analog pin that is designed to control the gain of PA2423L. Applying a voltage between 0 V and V
is a digital pin used to power-up and power-down the PA2423L in Time Duplex systems such as Bluetooth
RAMP
CTL
RAMP
voltage is pulled down, PA2423L acts as a 25 dB isolation block between the radio
CTL
Figure 7: PA2423L Package Drawing
, for example, a Class1 radio can be modified to a Class2 radio with the
CTL
pin can interface with Bluetooth
TM
RAMP
transmitted power levels.
voltage is pulled to V
TM
2.4 GHz Power Amplifier IC
transceivers offering digital and
CC
PA2423L
and PA2423L
7 of 10
Final
CC
will
CTL
TM