DATA BRIEF

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February 2006

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STLC4550

Single chip 802.11b/g WLAN radio

Features

802.11g WLAN standards

6Mbps OFDM, 11 and 5.5Mbps CCK and

legacy 2 and 1Mbps data rates

– 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

– SDIO (4-bit) serial host interface

– Passive components integration

– PA bias control

– Flexible integrated Power Management

Unit

– Glueless FEM interface

Power Save Mode

Applications

Description

The STLC4550 is a single chip 802.11b/g WLAN

radio for embedded, low-power and very small

form factor mobile applications. The product

conforms to the IEEE 802.11b and 802.11g

protocols operating in the 2.45GHz ISM

frequency band supporting OFDM data rates of

54, 48, 36, 24, 18, 12, 9, and 6Mbps as well as

CCK data rates of 11 and 5.5Mbps and legacy

data rates of 2 and 1Mbps.

The STLC4550 is a fully integrated wireless radio

including a ZIF transceiver, RDocRev1F

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.

In addition some passive components are

integrated further reducing the overall reference

design cost and size. An external FEM completes

a highly integrated chip set solution.

Host control is provided by a flexible SPI or SDIO

serial interface. The SPI interface supports a

maximum clock rate of 48MHz whereas the SDIO

supports a maximum clock rate of xxMHz. For

maximum flexibility, the STLC4550 accepts

system reference clock frequencies of 19.2, 26,

38.4 and 40MHz. A reference design evaluation

platform of hardware and software is provided to

system integrators to rapidly enable wireless

connectivity to mobile platforms.

Order codes

Part number

Temp range,

°CPackage

Packing

STLC4550

-30 to 85°C

LFBGA240- (8.5x8x1.4mm)

Tray

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