Product category:
Communications ICs (Wireless)
News Release from: SiGe Semiconductor | Subject: SE2521A40, SE2521A60 and SE2521A80
Edited by the Electronicstalk Editorial
Team on 21 June 2005
Wi-Fi modules target wireless niches
Three new RF front-end modules allow manufacturers to optimise the performance, battery life and transmission range required of a full complement of emerging Wi-Fi applications.
SiGe Semiconductor has expanded its RangeCharger product line with a trio of RF front-end modules that allow manufacturers to optimise the performance, battery life and transmission range required of a full complement of emerging Wi-Fi applications The new RF front-end modules address an increasingly segmented Wi-Fi market, and for the first time, allow manufacturers to easily adapt designs to meet the specific requirements of embedded applications, PC cards or access points
This article was originally published on Electronicstalk on 24 Jun 2008 at 8.00am (UK)
Related stories
Next-generation GPS in one chip
Receiver greatly simplifies dual-antenna system design because it integrates antenna sensing, switching and a high-performance low-noise amplifier.
Amplifier IC upgrades Wi-Fi performance
High linearity Wi-Fi power amp optimises transmission of greater datarates over longer distances, allowing systems to support emerging wireless multimedia applications.
The SE2521A40 delivers the efficiency and low power consumption required of embedded applications, including Wi-Fi VoIP phones; the SE2521A60 provides the balance of performance and low current consumption ideal for PC client cards; and the SE2521A80 ensures high output power to boost the transmission range of Wi-Fi routers and access points.
"The popularity of Wi-Fi is driving a segmentation of the market that makes it harder for manufacturers to optimise products for the required transmission range, efficiency and battery life", said Andrew Parolin, Director of Wireless Data Products at SiGe Semiconductor: "Our competitors are offering 'one-size-fits-all' PA and FEM solutions that won't allow for design optimisation".
"In contrast, SiGe's new RF front-end modules are the first to deliver the flexibility to more closely match the requirements of specific applications, while pin-to-pin compatibility offers a fast and efficient route to market".
Further reading
WLAN front ends shrink for portable appeal
Complete 802.11a/b/g/n WLAN RF front-end modules provide all the functionality required between the transceiver and the antenna in dual-band Wi-Fi systems.
Power amplifiers cut Wi-Fi costs
SiGe Semiconductor has released two new power amplifiers that provide manufacturers with the lowest cost route to developing Wi-Fi systems.
RF front-end module optimises Wi-Fi systems
The SE2593A delivers a complete 2.4 and 5GHz WLAN multiple input, multiple output (MIMO) RF solution including all of the circuitry required between the transceiver and the antennas
SiGe Semiconductor has adapted its proven, highly integrated 2.4GHz RF front-end architecture to support a diverse set of high datarate, 54Mbit/s WLAN applications.
Each device incorporates a linear power amplifier, power detector, transmit-receive switch, and associated matching circuitry in a small package measuring just 8 x 7 x 1.1mm.
The SE2521A40, SE2521A60 and SE2521A80 RF front-end modules each provide a complete interface between the output of the transceiver and the antenna, thereby easing design and manufacture, and reducing both the bill of materials and overall system cost.
SiGe Semiconductor's new RF front-end modules are pin-to-pin compatible with the SE2521A34, SiGe's previous 802.11g RF front-end module that has been integrated into laptops, PC Cards and other Wi-Fi devices from some of the world's leading OEMs.
Pin-to-pin compatibility allows customers to easily adapt their existing designs to optimise performance, battery life and transmission range of next-generation systems.
The SE2521A40 is ideal for embedded WLAN systems, capable of +18dBm output power with an error vector magnitude (EVM) of less than 3% while operating in 802.11g mode, or +22dBm in 802.11b mode while meeting all ACPR requirements.
The front-end module achieves this performance while minimising current consumption to 150mA in 802.11g mode.
This allows VoIP capability to be added to mobile phones without impacting battery life.
The SE2521A60 provides an optimal balance of performance and power efficiency, allowing PC Cards to maintain transmission over longer distances while maximising battery life.
The device is capable of +19dBm output power with an EVM of less than 3% while operating in 802.11g mode, or +23dBm in 802.11b mode while meeting all ACPR requirements.
The SE2521A60 consumes just 195mA in 802.11g mode.
The SE2521A80 is optimised for routers and access points, featuring high output power of +20dBm with an EVM of less than 3% while operating in 802.11g mode, or +20dBm in 802.11b mode while meeting all ACPR requirements.
The high output power boosts signal strength for reliable transmission over longer distances.
Each device also integrates a power detector with 20dB of dynamic range, and a digital enable control for transmitter on/off control.
The power detector boosts performance by minimising mismatch to only 1.5dB of variation over a 2:1 antenna mismatch.
The SE2521A40, SE2521A60 and SE2521A80 devices are sampling now, with production scheduled for Q3 2005.
• SiGe Semiconductor: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
