STLC4420A Datasheet, PDF (1/40 Pages) STMicroelectronics – Single chip 802.11b/g/a WLAN radio

STLC4420A
Single chip 802.11b/g/a WLAN radio
Feature summary
■ Extremely small footprint
■ Low power consumption
■ High performance dual band solution,operating
at 2.4 GHz and at 5 GHz
■ Fully compliant with the IEEE 802.11b
,802.11g and 802.11a WLAN standards
■ Support for 54, 48, 36, 24, 18, 12, 9, and
6Mbps OFDM, 11 and 5.5Mbps CCK and
legacy 2 and 1Mbps data rates at 2.4 GHz
■ Support for 54, 48, 36, 24, 18, 12, 9, and
6Mbps OFDM at 5 GHz
■ Single chip 802.11b/g/a WLAN solution with
fully integrated:
– Zero IF (ZIF) transceiver,
– Voltage controlled oscillator (VCO),
– High-speed A/ D and D/A converters,
– Radio power management unit (PMU),
– OFDM and CCK baseband processor,
– ARM9 media access controller (MAC),
– SPI serial host interface (up to 48Mbps)
– PA bias control
– Flexible integrated power management unit
– Glueless FEM interface
■ Intelligent power control, including 802.11
power save mode
■ Fully integrated Bluetooth coexistence
■ Mode selectable SPI or SDIO host interface
(up to 48Mbps)
Applications
■ Cellular phones
■ Personal digital assistants (PDA)
■ Portable computers
■ Hand-held data transfer devices
■ Cameras
Order codes
LFBGA228 (12.5x7x1.4mm)
■ Computer peripherals
■ Cable replacement
Description
The STLC4420A is a single chip dual band WLAN
solution for embedded, low-power, high
performance and very small form factor mobile
applications. The product conforms to the IEEE
802.11b, 802.11g and 802.11a protocols
operating in the 2.4 GHz and 5 GHz frequency
band, supporting OFDM data rates of 54, 48, 36,
24, 18, 12, 9, and 6Mbps in the both bands and
CCK data rates of 11 and 5.5Mbps and legacy
data rates of 2 and 1Mbps at 2.4 GHz.
The STLC4420A is a fully integrated wireless
radio including a ZIF transceiver, RF
synthesizer/VCO, high-speed data converters, an
OFDM/CCK digital baseband processor, an
ARM9-based MAC and a complete power
management unit with integrated PA bias control.
An external dual band FEM completes a highly
integrated chip set solution.
Host control is provided by a flexible serial
interface (SPI or SDIO) supporting bit rates of
48Mbps. For maximum flexibility, the STLC4420A
accepts system reference clock frequencies of
19.2, 26, 38.4 and 40 MHz. A reference design
evaluation platform of hardware and software is
provided to system integrators to rapidly enable
wireless connectivity to mobile platforms..
Part number
STLC4420A
April 2006
Op. Temp. range, °C
-30 to 85
Rev 1
Package
LFBGA228
1/40
1