SE2521A60
RangeCharger™ 2.4 GHz Wireless LAN Front End
Applications
IEEE802.11b DSSS WLAN
IEEE802.11g OFDM WLAN
Access Points, PCMCIA, PC cards
Product Description
The SE2521A60 is a complete 802.11 b/g WLAN RF
front-end module providing all the functionality of the
power amplifier, power detector, T/R switch, diversity
switch and associated matching. The SE2521A60
provides a complete 2.4 GHz WLAN RF solution from
the output of the transceiver to the antennas in an
ultra compact form factor.
Designed for ease of use, all RF ports are matched to
50
Ω
to simplify PCB layout and the interface to the
transceiver RFIC. The SE2521A60 also includes a
transmitter power detector with 20 dB of dynamic
range and a digital enable control for transmitter
power ramp on/off control. The power ramp rise/fall
time is 1 µsec typical.
The device also provides a notch filter from 3.2-3.3
GHz prior to the input of the power amplifier.
The SE2521A60 is footprint compatible to SiGe’s
SE2521A34 and can be placed directly into existing
SE2521A34 designs easily providing higher output
power solutions
Features
Pin for pin compatible to SiGe’s SE2521A34 but
providing 2 dB extra output power
Dual Mode IEEE802.11b & IEEE802.11g
All RF ports matched to 50
Ω
Integrated PA, TX Filter, DPDT T/R and Diversity
switches
Integrated Power Detector
23 dBm O/P Power, 802.11b, 11 Mbits, ACPR <-
35 dBc
18 dBm @ 2.0 %, 802.11g, 54 Mbits
Single supply voltage: 3.3 V ± 10 %
Lead free and RoHS compliant
Small lead free plated package, 8 mm x 7 mm x
1.1 mm, MSL 3
Ordering Information
Part No.
SE2521A60
SE2521A60-R
SE2521A60-EK1
Package
24 pin LGA
24 pin LGA
N/A
Remark
Samples
Tape and Reel
Evaluation kit
Functional Block Diagram
V
CC1
ANT_A
50 Ohm
Match
TX
EN
Bias Circuitry
TX
IN
50 Ohm
Match
Filter
OMN
LPF
PD_OUT
Power
Detector
50 Ohm
Match
50 Ohm
Match
Switch
Control
C1
RX
OUT
C2
C3
C4
ANT_B
Figure 1: Functional Block Diagram
177-DST-01
Rev 1.4
Apr-04-2006
Confidential
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SE2521A60
RangeCharger™ 2.4 GHz Wireless LAN Front End
Pin Out Diagram
ANT_A
ANT_B
18
17 C4
16 C3
15 C2
14 C1
13 PD_OUT
6
TX_IN
7
GND
8
GND
9
GND
10
RX_OUT
11
N/C
12
TXEN
GND
GND
GND
GND
20
24
GND
VCC1
VCC1
GND
GND
1
2
3
4
5
23
22
21
Figure 2: SE2521A60 Pin Out (Top View Through Package)
Pin Out Description
Pin No.
1
2
3
4,5
6
7,8,9
10
11
12
13
14
15
16
17
18
19,20
21
22,23,24
Name
GND
VCC1
VCC1
GND
TX_IN
GND
RX_OUT
N/C
TXEN
PD_OUT
C1
C2
C3
C4
ANT_B
GND
ANT_A
GND
Ground
+3.3 V DC
+3.3 V DC
Ground
Transmit Input
Ground
Receive Output
No Connect
Transmit Enable
Power Detector
Control 1 Input
Control 2 Input
Control 3 Input
Control 4 Input
Antenna B (50 ohm)
Ground
Antenna A (50 ohm)
Ground
Description
177-DST-01
Rev 1.4
Apr-04-2006
Confidential
QA040406
GND
19
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SE2521A60
RangeCharger™ 2.4 GHz Wireless LAN Front End
Absolute Maximum Ratings
These are stress ratings only. Exposure to stresses beyond these maximum ratings may cause permanent damage
to, or affect the reliability of the device. Avoid operating the device outside the recommended operating conditions
defined below. This device is ESD sensitive. Handling and assembly of this device should be at ESD protected
workstations.
Symbol
V
CC
TX
EN
TX
RF
T
A
T
STG
Definition
Supply Voltage on V
CC
Power Amplifier Enable
RF Input Power
Operating Temperature Range
Storage Temperature Range
Min.
-0.3
-0.3
-
-20
-40
Max.
4.0
4.0
2.0
85
150
Unit
V
V
dBm
°C
°C
Recommended Operating Conditions
Symbol
V
CC
T
A
Supply Voltage
Ambient Temperature
Parameter
Min.
3.0
0
Typ.
3.3
25
Max.
3.6
85
Unit
V
°C
DC Electrical Characteristics
Conditions:
Symbol
V
CC
= V
EN
= 3.3 V, T
A
= 25
°C,
as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation
board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted
Parameter
Conditions
P
OUT
= 18 dBm, 54 Mbps
OFDM signal, 64QAM
P
OUT
= 15 dBm, 54 Mbps
OFDM signal, 64QAM
P
OUT
= 20 dBm, 11 Mbps
CCK signal, BT = 0.45
V
EN
= 0 V, No RF Applied,
C1 = C2 = C3 = C4 = 0 V
Min.
165
110
175
-
Typ.
180
150
205
2
Max.
230
215
275
10
Unit
mA
mA
mA
µA
I
CC-G
Total Supply Current
I
CC-B
I
CC_OFF
Total Supply Current
Total Supply Current
177-DST-01
Rev 1.4
Apr-04-2006
Confidential
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SE2521A60
RangeCharger™ 2.4 GHz Wireless LAN Front End
Logic Characteristics
Conditions:
Symbol
V
ENH
V
ENL
I
ENH
I
ENL
V
CC
= V
EN
= 3.3 V, T
A
= 25
°C,
as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation
board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Parameter
Logic High Voltage
(Module On)
Logic Low Voltage
(Module Off)
Input Current Logic
High Voltage
Input Current Logic
Low Voltage
Conditions
-
-
-
-
Min.
2.0
0
-1
-1
Typ.
-
-
-
-
Max.
V
CC
0.5
200
1
Unit
V
V
µA
µA
Switch Characteristics
Conditions:
Symbol
V
CTL_ON
V
CTL_OFF
SW
ON
SW
OFF
I
CTL_ON
I
CTL_ON
C
CTL
V
CC
= V
EN
= 3.3 V, T
A
= 25
°C,
as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation
board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Parameter
Control Voltage
(On State)
Control Voltage
(OFF State)
Low Loss Switch
Control Voltage
High Loss Switch
Control Voltage
Switch Control Bias
Current (RF Applied)
Switch Control Bias
Current (No RF)
Control Input
Capacitance
Conditions
-
-
High State = V
CTL_ON
-
V
CTL_OFF
Low State = V
CTL_OFF
-
V
CTL_OFF
On pin (C1,C2,C3,C4)
being driven high. RF
Applied
On pin (C1,C2,C3,C4)
being driven high. No RF
-
Min.
3.0
0.0
2.8
0
-
-
-
Typ.
-
-
-
-
-
-
-
Max.
3.6
0.2
V
CC
0.3
100
30
100
Unit
V
V
V
V
µA
µA
pF
Switch Control Logic Table
Switch Logic
C1
SW
ON
SW
OFF
SW
OFF
SW
OFF
C4
SW
OFF
SW
ON
SW
OFF
SW
OFF
C2
SW
OFF
SW
OFF
SW
ON
SW
OFF
C3
SW
OFF
SW
OFF
SW
OFF
SW
ON
TX
RF
– ANTA
ON
OFF
OFF
OFF
Operational Mode
TX
RF
– ANTB
OFF
ON
OFF
OFF
RX
RF
– ANTA
OFF
OFF
ON
OFF
RX
RF
– ANTB
OFF
OFF
OFF
ON
177-DST-01
Rev 1.4
Apr-04-2006
Confidential
QA040406
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SE2521A60
RangeCharger™ 2.4 GHz Wireless LAN Front End
AC Electrical Characteristics
802.11g Transmit Characteristics
Conditions:
Symbol
F
IN
P
802.11g
V
CC
= V
EN
= 3.3 V, T
A
= 25
°C,
as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation
board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Parameter
Frequency Range
Output power
Condition
-
54 Mbps OFDM signal,
64QAM, EVM = 2.0 %
11 Mbps CCK signal,
BT = 0.45
ACPR(Adj) < -32
ACPR(Alt) < -52
-
-
-
-
Pout = 19 dBm, 2 Mbps,
802.11b CCK
f1 and f2 at Fc +/- 312.5
kHz, P = 15 dBm
f1 and f2 at Fc +/- 312.5
kHz, P = 15 dBm
10 % to 90% of final
output power level
50 % of V
EN
edge and
90/10 % of final output
power level
-
P
IN
≤
-2 dBm
Load VSWR = 6:1
Min.
2400
-
Typ.
-
18
Max.
2500
-
Unit
MHz
dBm
P
802.11b
Output power
-
23
-
dBm
P
1dB
S
21
∆S
21
S
21
3.2
2f,3f
IM3
IM5
t
r
t
dr
, t
df
S
11
STAB
P1dB
Small Signal Gain
Small Signal Gain
Variation Over Band
Gain @ 3.2 to 3.3 GHz
Harmonics
3 Order Inter-
modulation
5 Order Inter-
modulation
Rise Time
Delay and rise/fall
Time
Input Return Loss
Stability
th
rd
22.5
25
-
-
-
-
-
-
-
4.5
25.5
-
1.0
0
-49
-40
-55
0.12
-
6.5
-
33
3.0
7
-42
-33
-47
0.5
1.0
-
dBm
dB
dB
dB
dBm/MHz
dBc
dBc
µs
µs
dB
All non-harmonically related outputs less than
-50 dBc/1MHz
177-DST-01
Rev 1.4
Apr-04-2006
Confidential
QA040406
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