SiGe RangeChargerT SE2523BU delivers industry-leading performance and power efficiency in a new 0.5mm-profile package.
The ultra-thin design also reduces power consumption by 25 percent, making it ideal for embedding Wi-Fi capability into portable devices, including PDAs, VoWi-Fi handsets, cameras, cellular handsets, computer peripherals, and automotive devices.
The SE2523BU is a 2.4GHz power amplifier that integrates digital enable circuitry, a robust power detector and biasing circuitry in a miniature 16-pin 3 x 3 x 0.5 mm QFN package.
The chip features +18.5dBm power output with EVM of 2.5 percent while operating in 802.11g mode. All ACPR requirements are met while operating at +23dBm output power in 802.11b mode.
The integrated power detector improves stability of wireless transmissions, since it is highly immune to mismatch: less than 1.5dB of variation with a 2:1 mismatch. The power detector offers two selectable power detector slopes, allowing it to be used with multiple chipsets.
Digital enable control circuitry is integrated on chip to ease design by allowing the device to be connected directly to a CMOS baseband or transceiver.
Based on an efficient silicon germanium architecture, the SE2523BU ensures a low current draw of just 130 mA at +18.5 dBm output power, operating from a single 3.3 V supply.
The SE2523BU is in production now, priced at US $.79 in 10k unit quantities. More information is available at www.sige.com.