Product category:
Communications ICs (Wireless)
News Release from: SiGe Semiconductor | Subject: SE2520L
Edited by the Electronicstalk Editorial
Team on 12 December 2001
Power amp covers both Bluetooth and
Wi-Fi
The SE2520L from SiGe Semiconductor is a linear 2.4GHz power amplifier that is fully compliant with both Bluetooth 1.1 and IEEE 802.11b specifications.
The SE2520L from SiGe Semiconductor is a linear 2.4GHz power amplifier that is fully compliant with both Bluetooth 1.1 and IEEE 802.11b specifications The SE2520L optimises performance with superior power added efficiency and high output power
This article was originally published on Electronicstalk on 12 Mar 2003 at 8.00am (UK)
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The integration of both technologies into consumer products such as laptops PCs, computer peripherals, cellular handsets, and other handheld computing devices, will dramatically expand the possibilities of the wireless home and office.
"Our customers have identified a need for dual-mode solutions, and we expect to see a transition to more equipment that supports co-operation of the two standards", said Jerry Loraine, vice president, wireless, SiGe Semiconductor.
"To that end, we have developed a power amplifier that provides the required linear output power, but minimises current consumption.
Its miniature form factor, power management and high efficiency will extend battery life for Bluetooth and WLAN products with Flash card form factors".
Some dual-mode products use two power amplifiers: one for WLAN transmissions and a second for Bluetooth.
The use of two power amplifiers is undesirable for high-volume consumer applications, which must be small, low power, and low cost.
With its compliance to both standards, the SE2520 removes the need for two separate power amplifiers, thereby reducing cost and form factor at the system level and simplifying design.
Capable of operating at a duty cycle of 100%, the SE2520L delivers up to +22dBm of linear output power with an adjacent-channel power ratio (ACPR) of less than -30dBr per 100kHz.
This allows the SE2520L to enhance signal integrity over the specified range, enabling optimal performance of both technologies.
The SE2520L operates at a typical power consumption of 138mA, which is 50% less than other solutions on the market.
This reduction in current consumption is achieved through the combination of power-management control features and an efficient silicon germanium structure that provides high thermal conductivity and low junction temperature.
The device operates using a single 3.3V supply.
During the next year, SiGe will launch a series of integrated front-end devices and power amplifiers that ease system design of Class 1 Bluetooth, 802.11b, and 802.11a high-speed wireless access devices.
The roadmap builds on the success of SiGe's existing range of Bluetooth Class 1 power amplifiers, which have been integrated into laptop PCs, adaptors, and PCMCIA cards that have been fully certified.
The SE2020L is supplied in a small-outline 6-lead LPCC plastic package that is efficient for extremely small designs.
The device is available now in sample quantities, and production is scheduled for Q1 2002.
A flip-chip package option will also be available.
(This was Electronicstalk's Top Story on 11 December 2001).
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