Agere Systems - Proprietary
Product Brief
September 2003
WaveLAN™ WL54240
Dual-Band Po wer Amplifier
1 Features
!
Enhanced 0.25 µm bipolar technology (SiGe).
!
Operating frequency:
—2.4 GHz ~ 2.5 GHz
—5.15 GHz ~ 5.85 GHz
!
Dual-band and dual-mode solution.
!
Single 3.3 V supply voltage.
!
High linear PA for OFDM and DSSS/CCK modes.
!
Short TX/RX turnaround times.
!
Low EVM for QAM64/54 Mbits/s.
!
Standby function.
!
Analog power control for both bands.
!
Digital band select (2.4 GHz/5 GHz).
!
Digital standby mode.
!
Tiny mini-VQFN-24/0.5 package.
!
Integrated power detector with buffer for control loop.
!
Bands:
—2.4 GHz: P
Sat
= 30 dBm.
—5 GHz: P
Sat
= 27 dBm.
2 Wireless LAN Applications
!
High data-rate multimode applications.
!
Client cards for notebooks, desktop PCs, and PDAs.
!
Modules with WLAN functionality.
!
Enterprise and home infrastructure devices.
!
High-speed bridges and point-to-multipoint systems.
!
Home entertainment and multimedia systems.
.
3 Description
The WaveLAN WL54240 is an extremely linear, high-
power amplifier for WLAN applications in the 2.4 GHz
and 5 GHz bands. It has analog power control for both
bands as well as an on-chip power detector to com-
pensate the variability of transmit gain. The WL54240
is designed to form a complete IEEE
®
802.11a/b/g
WLAN chip set in combination with the WL60040 multi-
mode MAC, the WL64040 baseband, and the
WL54040 transceiver.
The WL54240 is a dual-band and dual-mode power
amplifier that combines the functionality of two devices
(two frequency bands) in one package. This reduces
the total board space required and reduces the total bill
of materials to a minimum. Essential internal blocks
can be used alternately by both amplifier path, provid-
ing optimum product synergy.
WaveLAN WL54240 Product Brief
Dual-Band Power Amplifier September 2003
2Agere Systems - Proprietary Lucent Technologies Inc.
3 Description
(continued)
Figure 1. Block Diagram
Figure 2. Pin Configuratio n
1st DRIVER
STAGE
5
GHz
ANALOG POWER
CONTROL STANDBY
RF INPUT
5 GHz
RF OUTPUT
5 GHz
RF
OUTPUT
2.4 GHz
POWER
DETECT
OUT
POWER CONTROL
VCC
BAND SELECT
1st DRIVER
STAGE 2nd DRIVER
STAGE
2nd DRIVER
STAGE
BAND SELECT
BIASING
VCC5BREF
OUTPUT
STAGE
OUTPUT
STAGE
BAND
GAP
VCC1
DIODE + TEMP .
COMPENSATION
POWER
DETECT
IN
DIODE + TEMP .
COMPENSATION
DIODE + TEMP .
COMPENSATION
PD SELECT
VCC6
ENABLE
RF INPUT
2.4 GHz
5
GHz
VCC2
INTERSTAGE
MATCHING INTERSTAGE
MATCHING
INTERSTAGE
MATCHING INTERSTAGE
MATCHING
2.4 GHz
WL54240
VCC5
PDS
VCC6
GND
GND
VCC1
PDI
VCC2
PO5
PO5
NC
BS
NC
PO2
PO2
NC
12345678
20 19 18 17 16 15 14 13
21
22
23
24
12
11
10
9
PAON
PI5
NC
PDT
VCC
BREF
PI2
PC
Product Brief WaveLAN WL54240
September 2003 Dual-Band Power Amplifier
Lucent Technologies Inc. Agere Systems - Proprietary 3
3 Description
(continued)
4 Electrical Characteristics
* Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. T hese are absolute stress ratings only.
Functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the
data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
Table 1. Pin Definition and Functions
Pin # Symbol Pin Type Function
1NC — Should be connected to ground.
2PO2 Analog Output Power output 2.4 GHz (open collecto r).
3PO2 Analog Output Power output 2.4 GHz (open collecto r).
4GND Supply RF ground emitter (2.4 GHz +5 GHz).
5PO5 Analog Output Power output 5 GHz (open collector).
6PO5 Analog Output Power output 5 GHz (open collector).
7NC — Should be connected to ground.
8BS Digital Input Band select 2/5 GHz.
9GND Supply Ground.
10 VCC6 Supply Supply voltage 5 GHz (2 stage).
11 PDS Digital Input Power detect select (internal/external).
12 VCC5 Supply Supply voltage 5 GHz (1 stage).
13 PDT Analog Output Power detect output.
14 NC — Should be connected to ground.
15 PI5 Analog Input Power input 5 GHz.
16 PAON Digital Input Enable PA logic.
17 PC Analog Input Power control.
18 PI2 Analog Input Power input 2.4 GHz.
19 BREF Analog Output Bias reference.
20 VCC Supply Supply voltage logic and biasing.
21 GND Supply Ground.
22 VCC1 Supply Supply voltage 2.4 GHz (1 stage).
23 PDI Analog Input Power detect input 50 Ω (ext. coupled).
24 VCC2 Supply Supply voltage 2.4 GHz (2 stage).
— Heatsink Supply Ground.
Table 2. Absolute Maximum Ratings*
Symbol Parameter Min Max Unit Symbol Parameter Min Max Unit
V
CC
,
PDN
Supply Voltage in Standby –0.3 5 V V
IN
Input Voltage –0.3 4 V
V
CC
Supply Voltage –0.3 4 V V
PO
Output Voltage –0.3 5 V
V
LOGIC
Input Voltage Logic –0.3 5 V P
IN
RF Input Power — 12 dBm
V
BREF
Input Voltage Reference –0.3 1.2 V SWR
max
Maximum Output VSWR — 15:1 —
Table 3. Operating Range
Symbol Parameter Min Max Unit Test Conditions
V
CC
Supply Voltage Range 3 3.6 V PAON = H, P
IN
< 8 dBm
V
CC
,
PDN
Supply Voltage Range in PDN 0 4.2 V PAON = L
T
A
Ambient Temperature –40 85 °C—
ƒ
IN
Input Frequency 2.4
5.15 2.5
5.850 GHz
GHz BS = L
BS = H
Agere Systems Inc. rese rves the rig ht to make chan ges to the pr oduct( s) or i nfor matio n cont ained herei n withou t notice. N o liability is assumed as a result of their use or application. Agere is a
registered trademark of Agere Systems Inc. Agere Systems, the Agere Logo, and WaveLAN are trademarks of Agere Systems Inc.
Copyright © 2003 Agere Systems Inc.
All Rights Reserved
September 2003
PB03-167WLAN
For additional info rma t io n, co ntact your Agere Syste ms Account Manager o r the foll ow in g:
INTERNET: http://www.agere.com
E-MAIL: docmaster@agere.com
N. AMERICA: Agere Systems I nc ., L eh igh Valley Central Ca mpus, Room 10A-30 1C , 1110 American Parkway NE, Allento wn , PA 18109-9138
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-71 2-4106)
ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tow er 2 , The Ga t ew ay, Harbour City, Kowloon
Tel. (852) 3129-2000, FAX (852) 3129-2020
CHINA: (86) 21-5 047-12 12 (Sh anghai), (86) 755-25881122 (Shenzhen)
JAPAN: (81) 3-5421-1600 (Tokyo ), KO REA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 6778-8833, TAIWAN: (886) 2-2725-5858 (Taipei)
EUROPE: Tel. (44) 1344 296 400
WaveLAN WL54240 Product Brief
Dual-Band Power Amplifier September 2003
4 Electrical Characteristics
(continued)
5 Ordering Information
IEEE is a registered trademark of The Institute of Electrical and Electronic Engineers.
Table 4. ac Characteristics
Symbol Parameter Min Typ Max Unit Test Conditions
ƒ
in
= 2.45 GHz, V
CC
= 3.3 V; T
amb
= 25 °C, PAON = H, BS = 0.
GGain 273133dB P
in
= –20 dBm
P
Sat
Maximum Output Power 27 30 31. 5 dBm Pin = 3 dBm
EVM2 EVM — 3 — % OFDM for 64 QAM at 20 dBm
ƒin = 5.25 GHz, VCC = 3.3 V, T
amb
= 25 °C, PAON = H, BS = 1
G Small-Signal-Gain (output matching opti-
mized for f
m
= 5.25 GHz) 2
17 22
19 24
21 dB
dB
P
in
= –20 dBm
5.15—5.35 GHz
5.70—5.85 GHz
P
Sat
Maximum Output Power 25.5 27 28.5 dBm P
in
= 3 dBm
EVM5 EVM — 3 — % OFDM 64 QAM at 16 dBm
Part Number Temperature Range
(°C) Package Packing MOQ Comcode
WL54240-D –40 to +85 Mini-VQFN-24/0.5 TBD TBD 7000549090
