Heilbronn, GermanyDesigned specifically for cordless telephones in the 5.8-GHz frequency band, Atmel Corp.is sampling an RF chipset that combines the ATR2820 SiGe transceiver and the ATR7040 high-gain power amplifier.
The ATR2820 5.8-GHz transceiver has been designed using Atmel's advanced SiGe BICMOS process to achieve low power consumption and high frequency.
The ATR2820 contains a low-IF receiver, VCO, PLL, and a transmit output with 3 dBm output power. It can be programmed via a 3-wire serial bus to integrate with any cordless telephone baseband available on the market as well as standard microcontrollers for gaming and other consumer applications.
The ATR2820's high data-rate capability (1.152 Mbits/s) allows the support of up to six handsets, using the standard DECT protocol via the same base station, or more than six game pads with a game controller.
The ATR7040 power amplifier boosts the power to 25 dBm with a supply voltage of 3.6V. Taking into consideration the lack of an antenna filter and the transmit/receive switch of 2 dB, the coverage distance is about 1600 ft (typically, in free space). Designers can increase the output power by applying a higher supply voltage.
Pricing: $5.70 in 10,000-piece quantities.
Availability: Samples of the ATR2820 in QFN32 (5 x 5 mm) and the ATR7040 PA in QFN16 (3 x 3 mm) packages are available now.
Data Sheets: ATR2820 and ATR7040.
Atmel Corp., (408) 441-0311, www.atmel.com.