Analogue, Mixed Signal, LSI


High-efficiency power amplifiers for WLAN applications

13 July 2005 Analogue, Mixed Signal, LSI

SST Communications, a developer of RF integrated circuits for a range of wireless and multimedia applications, and a subsidiary of flash memory specialist, SST (Silicon Storage Technology), has introduced two new high-efficiency power amplifiers for 802.11a and 802.11b/g WLAN systems.

Both devices offer very low power consumption, as well as on-chip power detection to provide maximum efficiency and significant cost savings to designers of power-sensitive WLAN equipment, such as PCMCIA, MiniPCI and USB cards, and handheld computing and communications devices. The PAs also help customers save on costs and PCB space by featuring on-chip power detectors and minimising the number of external devices.

The devices include the SST12LP14A for 2,4 GHz 802.11b/g and the SST11LP11 for 5 GHz 802.11a. When configured for high-efficiency operation, the versatile SST12LP14A only requires a low-quiescent current (Icq) of 45 mA. It provides 29 dB gain and linear output power of 17 dBm at Icc of 85 mA. Under high-power configuration, the same device provides Pout< of 22 dBm at 210 mA for 802.11g and Pout of 23 dBm at 240 mA for 802.11b application, respectively. Designed to operate over the entire 802.11a band between 4,9-5,8 GHz, the SST11LP11 requires Icq of 80 mA. It consumes 180 mA when delivering 24 dB gain and 18 dBm output power across the 4,9-5,8 GHz band.

In addition to the on-chip power detectors, the SST12LP14a and the SST11LP11 feature high-speed (less than 200 ns) power up/down control through a single combined reference voltage pin.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

3-axis accelerometers with selectable ranges
25 November 2020, Altron Arrow , Analogue, Mixed Signal, LSI
The analog output ADXL354 and the digital output ADXL355 are low noise density, low 0 G offset drift, low power, 3-axis accelerometers with selectable measurement ranges. The ADXL354B supports the ±2 G ...

Read more...
Multimodal sensor front end
25 November 2020, Altron Arrow , Analogue, Mixed Signal, LSI
Analog Devices' ADPD4000 and ADPD4001 operate as a complete multimodal sensor front end by stimulating up to eight LEDs and measuring the return signal on up to eight separate current inputs. Twelve ...

Read more...
CO2 sensor for indoor air quality applications
25 November 2020, Electrocomp , Analogue, Mixed Signal, LSI
With dimensions of just 10,1 x 10,1 x 6,5 mm, the SCD40 from Sensirion’s footprint has been miniaturised by a factor of five compared to its predecessor, the SCD30. Using the photoacoustic sensing principle, ...

Read more...
High-speed Rad-Hard logic ICs
28 October 2020 , Analogue, Mixed Signal, LSI
STMicroelectronics has introduced the first two logic devices in a new high-speed, radiation-hardened family that brings 150 MHz+ performance to space applications. The QML-V qualified RHFOSC04 (SMD15962F20207) ...

Read more...
High-voltage analog multiplexers
30 September 2020, Altron Arrow , Analogue, Mixed Signal, LSI
Diodes Incorporated announces the PS508 and PS509 analog multiplexers that are capable of switching signal voltages of up to 36 V in an industrial environment. The high voltage capability of the devices ...

Read more...
Low inductance SiC power module gate driver kit
31 August 2020, Altron Arrow , Analogue, Mixed Signal, LSI
The transformation to electrify transportation – from trains, trams and trolleys to buses, automobiles and EV chargers – continues at a rapid pace, as countries shift toward improved modes of transit ...

Read more...
New GaN-on-SiC power amplifiers
31 August 2020, RFiber Solutions , Analogue, Mixed Signal, LSI
MACOM Technology Solutions, a leading supplier of semiconductor solutions, recently announced at the virtual International Microwave Symposium the introduction of its new gallium nitride on silicon carbide ...

Read more...
DACs with 1 or 2 channels
31 August 2020, Altron Arrow , Analogue, Mixed Signal, LSI
The MCP47CXBXX/MCP48CXBXX are single- and dual-channel 8-bit, 10-bit and 12-bit buffered voltage output digital-to-analog converters (DAC), with volatile or MTP memory and an I2C/SPI interface. The MTP ...

Read more...
Data buffer for high performance server and cloud service applications
30 September 2020, Hi-Q Electronics , Analogue, Mixed Signal, LSI
Renesas Electronics Corporation has introduced a new high speed, low power DDR5 data buffer for data centre, server and high-performance workstation applications. Advancements over the past few years ...

Read more...
High accuracy inclinometer with machine learning core
30 September 2020 , Analogue, Mixed Signal, LSI
The IIS2ICLX from STMicroelectronics is a high accuracy, low power, 2-axis digital inclinometer for use in applications such as industrial automation and structural health monitoring. It features a ...

Read more...