BGW211 Low-power
Complete, single-package 802.11g
solution for mobile phones and
portable consumer devices
Optimized for use in battery-powered handheld devices,
the BGW211 System-in-a-Package (SiP) delivers complete
802.11g functionality with the industry’s lowest standby and
operating power consumption. It requires no external components and uses only 150 mm2 of board area for the total
802.11g solution.
The BGW211 is Philips’ third-generation System-in-a-Package (SiP)
solution for low-power 802.11 Wireless LAN (WLAN). Supporting
complete 802.11g functionality, it enables consumers to access data and
multimedia content through WLAN networks up to five times faster
than current 802.11b products without compromising battery life.
The BGW211 delivers industry-leading standby and operating power in a
package that measures only 150 mm2 and requires no external components for operation. Extensive support for Quality of Service (QoS) and
coexistence with Bluetooth wireless make it robust enough for very
demanding portable applications.
The latest SiP technology from Philips allows all of the components
needed for a complete 802.11g WLAN subsystem to be contained in
Key features
• Advanced, single-package WLAN 802.11g optimized for mobile
handheld devices
– No RF-critical design required
– Low total cost of ownership
• Lowest-power consumption in standby (< 2 mW) and operating
modes (PA, RF, baseband/MAC)
• Ultra-small form factor
a single, low-profile HVQFN package that measures only 10 x 15 x 1.3
mm. The SiP contains the industry’s first 90-nm CMOS 802.11g baseband/MAC and a silicon-germanium BiCMOS radio transceiver. Unlike
other “one-chip” solutions, which require the use of external receive
LNAs, transmit power amplifiers, and/or additional components, the
BGW211 SiP requires no external components to meet the range and
throughput performance requirements of mobile handsets and network
– Low-profile 68-pin HVQFN-like SiP package (10 x 15 x 1.3 mm)
– No external components required
• Ideal mobile architecture
– No WLAN related processor load in all operating modes
– Integrated ARM7 controller with associated memories
• Comprehensive QoS
By providing complete system functionality in a single package, the SiP
format delivers quicker design cycles, reduces risk, simplifies manufacturing, and reduces the bill of materials. Also, because the SiP offers
– All mandatory 802.11e features, plus DLS, Block ACK, APSD
fully tested functionality, it lets the customer’s development team focus
– Optimized for real-time applications with minimal system power
their energy on innovative product design instead of the complex issues
related to RF layout.
• Co-exists with Bluetooth
• Seamless upgrade path from BGW200 802.11b SiP
• Complete software drivers, utilities, and diagnostic tools
BGW211 Low-power WLAN SiP
Complete, single-package 802.11g solution for mobile phones & portable consumer devices
less power in 802.11b mode than its BGW200 predecessor and in
• Smartphones, cellular phones, VoIP wireless phones
802.11g mode provides the lowest system power consumption avail-
• PDAs, handheld computing devices, WLAN adapter cards (Secure
able while delivering –73 dBm receiver sensitivity at 54 Mbps and 15
dBm transmit output power at the antenna port. Receiver power
• Portable audio/video devices, MP3 players
consumption in 802.11b mode is 300 mW and in 802.11g mode is
• Other handhelds and electronic devices for wireless digital, audio,
400 mW. Transmit power at 15 dBm is 550 mW for 802.11b and 600
mW for 802.11g.
Industry’s lowest power consumption
Several features combine to minimize power consumption. There is
The BGW211 builds on an established position as the industry’s
an integrated ARM7 processor, 1.25 Mbytes of SRAM, 256 Kbytes of
lowest standby power mobile Wi-Fi solution to significantly reduce
ROM, optimized host interfaces (SDIO/SPI), and integrated power
receive and transmit power during operation. It consumes 30%
management hardware/software algorithms. The result is the lowest
BGW211 functional block diagram
multimedia, and telephony
overall standby and operating power consumption in the industry:
ensures selection of the best bit-rate prior to complete loss of link,
standby mode operation of the entire system, including the power
thereby increasing the overall system throughput.
amplifiers, the radio, and the baseband/MAC typically requires less
than 2 mW.
The BGW211 also offers advanced security features, including 40and 128-bit WEP, WPA, Cisco CCX, TKIP, and AES.
Superior “No Host Load” Architecture
To extend battery life without impacting performance, the BGW211
Bluetooth coexistence
is designed to place no load on the host processor. The entire IEEE
The BGW211 is designed to support collaborative coexistence
802.11 protocol stack resides within the BGW211 so that it can
between 802.11 and Bluetooth. A dedicated software and hardware
independently listen for and process incoming traffic without host
interface implements Packet Traffic Arbitration (PTA) with voice
processor assistance. In standby mode, the host processor is only
priority between the BGW211 and the Bluetooth system. An auto
activated when a valid data packet arrives – thereby allowing maxi-
shutdown feature ensures that Bluetooth voice takes priority over
mum battery life without compromising application performance. A
other signals and there is special support for burst and fragmented
common high-level application programming interface (API) enables
frames. Bluetooth 1.2 enhances coexistence further, by adding
rapid software integration and backwards compatibility with the
independent Advanced Frequency Hopping (AFH) capability. The
BGW200 for fast time to market. To offload the host processor
Philips BGB20x family of Bluetooth SiPs coexists seamlessly with the
even further, the MAC protocol runs on the BGW211’s integrated
ARM7 processor, which uses an instruction prefetch unit to enhance
performance. To support new MAC protocol features, the BGW211
Easy BGW200 upgrade path
is also designed to allow for firmware upgrades.
The new Philips BGW211 low-power 802.11g SiP is pin- and software-compatible with second-generation Philips BGW200 low-
Advanced RF subsystem
power 802.11b SiP, thereby facilitating an easy migration path for
The integrated RF transceiver supports transmit output power
existing customers to design in the higher speed capability in future
control from +8 to +18 dBm at the antenna port, enabling optimal
phones and handheld devices without board-level layout changes.
range, throughput, and power consumption. The integrated RF
Also, to make the switch even easier, special software modules make
transceiver uses a direct conversion radio architecture that mini-
the driver upgrade completely transparent.
mizes external components and eliminates the need for an IF filter.
For additional component reduction, the integrated PA is internally
Reference designs and eval kits
matched to the ZIF radio. The BGW211 also integrates an Rx/Tx
Reference design software drivers support PocketPC™ and Linux™
diversity switch, bandpass filter, balun, power supply decoupling, and
operating systems. Drivers for other operating systems are in
other passive components.
development. The BGW211 is backed by a complete set of software
utility and diagnostic tools, and is available in evaluation kits.
Comprehensive QoS
The BGW211 offers comprehensive QoS features that enhance performance in real-time applications like VoIP and non-real-time applications like email and web surfing. In addition to supporting all the
mandatory elements of 802.11e, the BGW211 also supports optional
QoS features like Direct Link Setup (DLS), Block Acknowledgement
(ACK), and Automatic Power Save Delivery (APSD). Advanced Link
Adaptation techniques optimize QoS for real-time applications and
Adaptive Transmit Power control algorithms minimize system power
consumption in all modes. A proprietary link adaptation algorithm
BGW211 Low-power WLAN SiP
Complete, single-package 802.11g solution for mobile phones & portable consumer devices
w w w. se m ico nd u c t o r s . p h i l i p s .co m
BGW211 specifications
Frequency bands
2.4 to 2.5 GHz
Data rates
1, 2, 5.5, 11 Mbps
6, 9, 12, 18, 24, 36, 48, 54 Mbps
Receive power
300 mW (802.11b)
400 mW (802.11g)
Transmit power (15 dBm)
550 mW (802.11b)
600 mW (802.11g)
Power consumption for PA, RF,
baseband/MAC (typical)
Standby: < 2 mW
BGW211 order information
Part number
Low-power 802.11g SiP
10 x 15 x 1.3 mm
Philips Semiconductors
Philips Semiconductors is a worldwide company with over 100 sales
offices in more than 50 countries. For a complete up-to-date list of our
sales offices please e-mail [email protected]
com. A complete list will be sent to you automatically. You can also visit
our website
© Koninklijke Philips Electronics N.V. 2005
SCL 76
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Date of release: March 2005
document order number: 9397-750-14869
Published in USA