RFS P2023
2.4 GHz 802.11b/g
WLAN Power Amplifier
Data Sheet - Rev 2.3
FEATURES
•
•
•
•
•
•
<3% EVM, 145 mA @ P
OUT
= +19 dBm with
IEEE 802.11g Modulation at 54 Mbps
-38 dBc ACPR 1st Sidelobe at +23 dBm with
IEEE 802.11b Modulation at 11 Mbps
-54 dBc ACPR 2nd Sidelobe at +23 dBm with
IEEE 802.11b Modulation at 11 Mbps
No RF Matching Required
34 dB of Linear Power Gain
Temperature-Compensated Linear Power
Detector
APPLICATIONS
•
•
•
IEEE 802.11 b/g WLAN
2.4 GHz Cordless Phones
2.4 GHz ISM Equipment
S28 Package
16 Pin 3 mm x 3 mm x 0.9 mm LPCC
PRODUCT DESCRIPTION
The RFS P2023 power amplifier is a high
performance InGaP HBT IC designed for transmit
applications in the 2.4-2.5 GHz band. The part is
matched at the input and output so no additional RF
matching components are required off-chip. The
VCC1
NC
PA exhibits unparalleled linearity and efficiency for
both 802.11g and 802.11b WLAN systems. The
power detector is temperature compensated on chip
enabling a single-ended output voltage. The part is
biased by a single +3.3 V supply.
VCC2
VCC3
13
16
15
14
GND
1
Bias Network
12
GND
RF IN
2
Input
Match
Output
Match
11
RF
OUT
GND
3
10
GND
VPC1
4
Bias
Network
Power
Detector
9
DETDC1
5
6
7
8
Figure 1: Block Diagram and Pinout
04/2005
DETOUT
VBC
DETDC2
VPC2/3
RFS P2023
Table 1: Pin Description
P IN
1
2
3
4
5
6
7
8
N AM E
GND
RF
IN
GND
V
PC1
V
BC
V
PC2/3
DET
DC2
DET
OUT
D E S C R IP T ION
Ground
RF Input
Ground
Power Control 1
Bi as Ci rcui t Voltage
Power Control 2/3
Detector Bi as 2
Power Detector Output
P IN
9
10
11
12
13
14
15
16
N AM E
DET
DC1
GND
RF
OUT
GND
V
CC3
V
CC2
NC
V
CC1
D E S C R IP T ION
Detector Bi as 1
Ground
RF Output
Ground
Supply Voltage
Supply Voltage
No Connect
Supply Voltage
2
Data Sheet - Rev 2.3
04/2005
RFS P2023
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Minimum and Maximum Ratings
PAR AME T E R
DC Power Supply (V
CC1
, V
CC2
, V
CC3
)
MIN
M AX
4.0
U N IT
V
Appli ed to seri es
resi stors external to V
PC
pi ns. No RF si gnal
appli ed.
C OMME N T S
Power Control Level (V
PC1
, V
PC2/3
)
4.0
V
DC Current Consumpti on
RF Input Level (RF
IN
)
Operati ng Ambi ent Temperature
Storage Temperature
0
-55
400
-5
+85
+150
mA
dBm
°C
°C
Stresses in excess of the absolute ratings may cause permanent damage. Functional operation
is not implied under these conditions. Exposure to absolute ratings for extended periods of
time may adversely affect reliability.
Table 3: Operating Ranges
PARAMETER
Operating Frequency
Supply Voltage (V
CC1
, V
CC2
, V
CC3
)
Power Control Voltage
(V
PC1,
V
PC2/3
)
MIN
2400
3.0
-
TYP
-
3.3
3.3
MAX
2500
3.6
-
UNIT
MHz
V
V
COMMENTS
0
-
0.5
V
PA
ON
. Applied to series
resistors external to V
PC
pins.
PA
SHUTDOWN
. Applied to
series resistors external to
V
PC
pins.
The device may be operated safely over these conditions; however, parametric performance is
guaranteed only over the conditions defined in the electrical specifications.
Data Sheet - Rev 2.3
04/2005
3
RFS P2023
Table 4: IEEE 802.11g Modulation, 54 Mbps OFDM
(V
CC
= 3.3 V, V
PC
= 3.3 V, P
OUT
= +19 dBm, +25 °C)
PAR AME T E R
Power Gai n
Gai n Ri pple
Current Consumpti on
Error Vector Magni tude (EVM)
Power Detector Voltage
Detector Sensi ti vi ty
Detector Output Impedance
Notes:
1. EVM includes noise floor of 1% (-40 dB).
MIN
31.5
T YP
34.5
M AX
37.0
±0.75
U N IT
dB
dB
mA
%
dB
V
mV/dB
KV
C OMME N T S
P
OUT
= +19 dBm
145
2.8
-31
0.50
0.60
75
1
165
4.0
-28
0.70
P
OUT
= +19 dBm
P
OUT
= +19 dBm
P
OUT
= +19 dBm
P
OUT
= +19 dBm, 1K
V
Load
Table 5: IEEE 802.11b Modulation,11 Mbps DSSS, CCK
(V
CC
= 3.3 V, V
PC
= 3.3 V, P
OUT
= +21 dBm, +25 °C)
PARAMETER
Power Gain
Gain Ripple
Current Consumption
ACPR - 1st Sidelobe
(11 MHz Offset)
ACPR - 2nd Sidelobe
(22 MHz Offset)
Power Detector Voltage
Detector Sensitivity
Detector Output Impedance
1
0.7
175
-38
-54
0.8
75
MIN
31.5
TYP
34.5
MAX
37.0
±0.75
195
-33
-53
0.9
UNIT
dB
dB
mA
dB c
dB c
V
mV/dB
K8
P
OUT
= +21dBm
P
OUT
= +21 dBm;
1,2,5.5,11 Mbps
P
OUT
= +21 dBm;
1,2,5.5,11 Mbps
P
OUT
= +21 dBm, 1K
8
Load
COMMENTS
P
OUT
= +21 dBm
4
Data Sheet - Rev 2.3
04/2005
RFS P2023
Table 6: Continuous Wave Signal
(V
CC
= 3.3 V, V
PC
= 3.3 V, +25 °C)
PARAMETER
P 1 dB
Harmonics
2fo
3fo
Stability
Input Return Loss
Output Return Loss
Output Noise Power
Reverse Isolation
Shutdown Current
Quiescent Current
T
ON
Setting Time
T
OFF
Setting Time
MIN
25.0
TYP
26.5
-20
-25
5:1
-7
-12
MAX
28.0
-16
-20
UNIT
dB m
COMMENTS
dB c
Pout = +25 dBm
-4
-9
130
dB
dB
dBm/Hz
dB
40
1
30
45
60
1
1
µA
mA
µS
µS
Settles within ±0.5 dB
Data Sheet - Rev 2.3
04/2005
5
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