Product Brief
September 2003
WaveLAN™ WL54040
Dual-Band Wireless LAN Transceiver
1 Features
■
Direct-conversion receiver for IEEE
®
802.11b and
low- I F re ce iv er for IEEE 802.11a/g with integrated
channel filter and programmable gain control.
■
dc offset cancellation.
■
Synthesizer with integrated VCO, PLL, 40 MHz
crystal oscillator with digital frequency calibration.
■
I-Q differential interface for RX and TX, multiplexed
for IEEE 802.11a/b/g.
■
Direct modulation transmitter with programmable
output power –10 dBm to 0 dBm.
■
High sensitivity (under normal operating condi-
tions):
—IEEE 802.11b mode: –88 dBm for 11 Mbits/s.
—IEEE 802.11a and IEEE 802.11g modes:
–74 dBm for 54 Mbits/s.
■
No external SAW filter required.
■
Low BOM, low external component count.
■
0.25 µm BiCMOS techno log y.
■
Three-wire bus control.
■
Supply voltage 3.0 V—3.6 V.
■
Alternative direct supply of regulated supply volt-
age 2.5 V—2.7 V.
■
Two integrated voltage regulators (LDO).
■
Powerdown modes.
■
Operational temperature –30 °C to +85 °C.
2 Wireless LAN Applic ations
■
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 sys-
tems.
■
Home entertainment and multimedia systems.
3 Description
The WaveLAN WL54040 is a low-power, high-perfor-
mance dual-band transceiver for the IEEE 802.11a,
IEEE 802.11b, and IEEE 802.11g wireless LAN stan-
dards. The WL54040 is designed to form a complete
Agere IEEE 802.11a/b/g chip set in combination with
the WL64040 multimode baseband processor, the
WL60040 WMAC, and the WL54240 dual-band
power amplifier.
The WL54040 is designed in 0.25 µm BiCMOS tech-
nology. It is capable of automatically switching
between low intermediate-frequency conversion
(low-IF) for OFDM and direct down conversion for
DSSS/CCK modul ation, ena bli ng the dev ice to
achieve optimal throughput for all of the IEEE 802.11
standards. Specifically, low-IF conversion guards
against dynamic range degradation, an inherent limi-
tation of direct-down OFDM architectures, to provide
improv ed sys tem per form anc e.
2Agere Systems Inc.
Product Brief
September 2003
Dual-Band Wireless LAN Transceiver
WaveLAN WL54040
3 Description
(continued)
Figure 1. Block Diagram
4 Pin Descriptions
Figure 2. Pin Configuration
RX FILTER / PGC
RSSI
RX 2.4 GHz
TX 5.2 GHz
SYNTHESIZER
PLL
RSSI
2.4 GHz/5GHz
TX
5 GHz
LOOP FILTER
3-WIRE BUS 3-WIRE B U S
RX 5.2 GHz
TX 2.4 GHz
I
Q
I
Q
PGC2
CCK FIL TER
TX
2.4 GHz
RX
2.4 GHz
RX
5 GHz
5 GHz
2.4 GHz
PGC1
OFDM FILTER
90°
0°
40 MHz OUT
LDO
WL54040
373839404142434445464748
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
242322212019181716151413
RREF
VCCXO
TXI
TXIX
TXQ
TXQX
RXI
RXIX
RXQ
RXQX
NC
VCCRXBB
LFSWITCH
CPA
EN
VCCVCO
LDO1
VCCLDO
LDO2
CLK
DATA
FSYS
XO1
XO
CPB
VCCRXA
RFAX
RFA
TXAX
TXA
VCCTX
TXEN
VCCPLL
VDDPLL
VCCCP
NC
RXEN
PON
TXBX
TXB
RFBX
RFB
VCCRXB
LOCK
RSSI
RSSIX
NC
NC
Agere Systems Inc. 3
Product Brief
September 2003 Dual-Band Wireless LAN Transceiver
WaveLAN WL54040
4 Pin Descriptions
(continued)
Table 1. Pin Definitions and Functions
5 Electrical Characteristics
Table 2. Absolute Maximum Ratings, T
AMB
= –30 °C to +85 °C*
* Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Thes e are absolute stress ratings
only. Functional operation of the device is not implied at these or any other conditions in excess of those giv en in the operations sec-
tions of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
† Supply voltage for all supply pins except VCCLDO (VCCXO, VCCRXBB, VCCRXB, VCCTX, VCCRXA, VCCPLL, VDDPLL, VCCCP,
and VCCVCO).
Table 3. Operating Range
Pin # Symbol Pin
Type Function Pin # Symbol Pin
Type Function
1 RREF TBD External reference resistor 25 TXEN TBD Transmit enable
2 VCCXO TBD Supply quartz oscillator 26 VCCTX TBD Supply voltage transmitter
3 NC TBD Not connected 27 TXA TBD Transmitter output 5 GHz 0°
4 TXI TBD Transmitter inputs 90° 28 TXAX TBD Transmitter output 5 GHz 180°
5 TXIX TBD Transmitter inputs 270° 29 NC TBD Not connected
6 TXQ TBD Transmitter inputs 0° 30 RFA TBD LNA inputs 5 GHz 0°
7 TXQX TBD Transmitter inputs 180° 31 RFAX TBD LNA inputs 5 GHz 180°
8 RXI TBD Baseband signal output 90° 32 VCCRXA TBD Supply voltage LNA 5 GHz
9 RXIX TBD Baseband signal output 270° 33 VCCPLL TBD Supply voltage PLL
10 RXQ TBD Baseband signal output 0° 34 VDDPLL TBD Supply voltage PLL
11 RXQX TBD Baseband signal output 180° 35 VCCCP TBD Su pply voltage charge pump
12 VCCRXBB TBD Supply voltage filters 36 CPB TBD Charge pump 2.4 GHz
13 RSSIX TBD RSSI output 37 LFSwitch TBD Loop filter switch
14 RSSI TBD RSSI output 38 CPA TBD Charge pump 5 GHz
15 LOCK TBD Lock dete ct out put 39 EN TBD E nab le (thre e-w ire bus)
16 VCCRXB TBD Supply voltage LNA 2.4 GHz 40 VCCVCO TBD Supply voltag e VCO
17 RFB TBD LNA inputs 2.4 GHz 0° 41 LDO1 TBD Voltage regulator 1 output
18 RFBX TBD LNA inputs 2.4 GHz 180° 42 VCCLDO TBD Supply voltage regulator
19 TXB TBD Transmitter output 2.4 GHz 0° 43 LDO2 TBD Voltage regulator 2 output
20 TXBX TBD Transmitter output 2.4 GHz 180° 44 CLK TBD Clock (three-wire bus)
21 NC TBD Not connected 45 DATA TBD Data (three-wire bus)
22 PON TBD Power on 46 FSYS TBD 40 MHz reference frequency output
23 RXEN TBD Receive enable 47 XO1 TBD External crystal conn 1
24 NC TBD Not connected 48 XO TBD External crystal conn 2
Parameter Symbol Min Max Unit Parameter Symbol Min Max Unit
Supply Voltage
†
(Except VCCLDO) V
S
–0.3 2.8 V Output Voltage V
O
0V
S
V
Supply Voltage for VCCLDO V
SLDO
–0.3 3.6 V Open Collector Output Voltage V
OC
–0.3 4.0 V
Input Voltage V
I
–0.3 3.1 V Total Power Dissipation
(R
thJA
= 25 K/W) P
tot
—600mW
Differential Input Voltage V
ID
—2.0V
p-p
ESD-integrity* V
ESD
— 1000 V
Parameter Symbol Min Max Unit
Ambient Temperature T
AMB
–30 85 °C
Supply Voltage V
S
2.5 2.7 V
Supply Voltage for Pin 42 V
CCLDO
V
VCCLDO
3.0 3.6 V
Copyright © 2003 Agere Systems Inc.
All Rights Reserved
September 2003
PB03-166WLAN
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Agere is a registered trademark of Agere Systems Inc. Agere Systems and the Agere Logo are trademarks of Agere Systems Inc. WaveLAN i s a trademark of Agere Systems Inc.
For additional info rma t io n, co ntact your Agere Syste ms Account Manager or the following:
INTERNET: http://www.agere.com
E-MAIL: docmaster@agere.com
N. AMERICA: Agere Systems I nc ., L eh igh Va lley Central Campus, Roo m 10 A-301C, 1110 American Parkway NE, Allentown, PA 18 109-9138
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610- 712-4106)
ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tow er 2 , The Gateway, Harbour Cit y, Kowloo n
Tel. (852) 3129-2000, FAX (852) 3129-2020
CHINA: (86) 21-5 047-1212 (Shanghai), (86) 755-25881122 (Shenzhen)
JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: ( 82) 2-767-18 50 (Seoul), SINGA PO RE: (65) 778-88 33, TAIWA N: (886) 2-2725 - 5858 (Taipei)
EUROPE: Tel. (44) 134 4 296 400
Product Brief
September 2003
Dual-Band Wireless LAN Transceiver
WaveLAN WL54040
5 Electrical Characteristics
(continued)
In the following tables, all voltages are rms values, where all exceptions are clearly stated. All values are prelimi-
nary target values and may be changed up until the final specification is released. Unless otherwise specified, the
following conditions apply: T
AMB
= 25 °C, VS = 2.5 V—2.7 V.
Table 4. IEEE 802.11a/IEEE 802.11g Receiver ac/dc Characteristics (low IF, f
IF
= 10 MHz)
Table 5. IEEE 802.11a/IEEE 802.11g Trans m itter ac/dc Characteristics
6 Ordering Information
IEEE is a registered trademark of The Institute of Electrical and Electronics Engineers, Inc.
Parameter Symbol IEEE 802.11a IEEE 802.11g OFDM IEEE 802.11b DSSS/CCK
(Direct Conversion) Unit Test Conditions
Min Typ Max Min Typ Max Min Typ Max
Input Frequency — 5150 — 5875 2400 — 2483.5 2400 — 2483. 5 MHz —
Overall Gain (high) G
VOH
63 69 75 62 — 74 76 82 88 dB T
AMB
= 30°C to +85°C
Overall Gain (low) G
VOL
13 20 25 12 — 24 –3 3 9 dB T
AMB
= 30°C to +85°C
LNA Gain Step G
S
17 20 23 24 — 30 24 27 30 dB LNA gain = high -> low,
T
AMB
= –30°C to +85°C
Parameter Symbol
IEEE 802.11a
(incl. Filter, Modulator)
IEEE 802.11g
(incl. Filter, Modulator, Driver) Unit Test Conditions
Min Typ Max Min Typ Max
Frequency Range — 5170 5815 2400 — 2483.5 MHz —
Max Output Level Pout
A
–6 –3 –1 –6 –3 –1 dBm T
AMB
= –30°C to +85°C
PGC Gain Range — 9 — 10 9 — 10 dB —
EVM — –29 — — — — — dB V in = 1 Vp-p max; modulated
with 64 QAM OFDM signal;
T
AMB
= –30°C to +85°C
Part Number Temperature Range (°C) Package Packing MOQ Comcode
WL54040-D –30 to +85 P-VQFN-48-4 TBD TBD 700054910
