Search
Order Status Order Status
 Corporate

About Us

Delivery

Guarantee
 Need Help

Contact Us

News

Latest Products

Ordering Information


 Top Stories

Atmel Introduces Industry's First 2.4-GHz DECT Non-Blind-Slot RF Transceiver IC for Voice and Data Applications

New IC combines to form a complete 2.4GHz DECT System

Atmel Corporation has announced the availability of a high-speed RF transceiver IC for DECT (see footnote 1) applications at 2.4 GHz. The T2802 is a flexible solution for a wide range of data and voice applications such as residential cordless phones, WPBX (see footnote 2), WLL (see footnote 3) and WLAN (see footnote 4). Along with Atmel's well-known Low-Noise Amplifier/ Power Amplifier T7024, it forms a complete RF system for 2.4 GHz DECT systems.

The T2802 includes image rejection mixer, IF (see footnote 5) amplifier; FM (see footnote 6) demodulator, baseband filter, RSSI (see footnote 7), transmitter amplifier; power ramping generator for the power amplifier, integrated synthesizer and Voltage-Controlled Oscillator (VCO). The on-chip Gaussian-shaped transmitter filter (with a modulation compensation circuit for advanced closed loop modulation) and a very fast phase-locked loop settling time (less than 30 microseconds) allows non- blind-slot operation, i.e. to use up to 12 handsets with the same base station. Moreover, this feature also enables industry's highest data transmit bit rates (1.152 Mbit per second) which is especially important for fast data download (wireless internet access) and fast data transfer to printers (WLAN).

"We are proud to announce with this new RF 2.4-GHz DECT transceiver a further step in high-speed digital wireless connectivity. The high data transmit bit rate will enable end users to load or send data faster than ever. Internet users will be especially happy to shorten annoying and costly download time. DECT phone customers will also enjoy the multiple hand set function that allows them to use more hand sets (up to 12) than with conventional solutions (up to 3)," said Ahmad Lindenberg, Product Marketing Manager Cordless Telephone ICs at Atmel.

The universal transceiver-to-baseband interface can be used along with any major DECT baseband IC since the transceiver is suitable for both 13.824 MHz and 10.368 MHz reference clock frequency.

A 4-bit D/A (Digital/ Analog) converter is available for pre-tuning of the VCO's center frequency to compensate for production tolerances of the IC. To achieve best performance on the receiving side, the on-board 5-bit D/A converter can be used to tune the demodulator. The DECT transceiver is completely alignment-free (i.e., mechanical tuning is not necessary).

The T2802 is designed to seamlessly interface with the RF front end IC T7024 manufactured in Silicon- Germanium (SiGe) technology. This simplifies the design, minimizes the number of external components and thus reduces production costs. The T7024 achieves an output power of +23 dBm/ 3 V at a gain of 25 dB. Its integrated LNA provides a very low noise figure (2.3 dB typ.) which together with the single-chip transceiver T2802 increases the overall sensitivity (typically -96 dBm).

footnote 1 = Digital Enhanced Cordless Telecommunications
footnote 2 = Wireless Private Branch Exchange
footnote 3 = Wireless Local Loop
footnote 4 = Wireless Local Area Network
footnote 5 = Intermediate Frequency
footnote 6 = Frequency Modulation
footnote 7 = Receive Signal Sensivity Input

The company's Web site address is http://www.atmel.com/.

[Reprinted with kind permission from Atmel]


 HeadLines
New PIC micro breaks the 1Mbit barrier

New Auto-Zero Amplifier From Analog Devices Cuts Noise By Half

Atmel's New 2.4GHz Transceiver IC

New 0.05% Accurate RMS to DC Converter

New Digitally Controller Precision Instrumentation Amplifier

New TI Micro with Improved Mixed-Signal Processing Performance

 Other Stories
New features for the PIC16F87X Range
Analog Delivers First Blackfin DSP's
Atmel releases New AVR Microcontrollers
New Current Sense Amp from Linear Technology
New High Speed 12-bit Sampling ADC
Microchip releases New Motor Controller IC Range
New dsPIC from Microchip
New VisualDSP release from Analog Devices
Atmel's New 80C51 Microcontroller's with Flash Memory
Dallas Semiconductor Releases new Microcontroller with Internet Connectivity
New Speech Recognition IC from Philips
Flash Memory IC is ideal for large memory requirements
Analog Devices Releases New MP3 Chip
Atmel AT90S Microcontroller with USB Interface
New High Speed 8051-Compatible Microcontroller
New Low Voltage Step-Down Controller
New Highly Accurate Battery Pack Controller
New PIC 18Cxxx Microcontroller with Integral CAN Solution
New microprocessor integrates Ethernet and USB on-chip
Texas Instruments Release New Digital Audio Solution
Zilog Annouces Internet Connectivity Software for it's Z180 Series
New Motorola MCU
Higher Resolution Scanners Possible
New Headphone Amp is excellent for Computer Applications
TI Announces new Bluetooth Chipset
First RISC-based Programmable System-On-A-Chip Announced
STMicroelectronics Announces Front-end Breakthrough for Digital Satellite Receivers and STBs
TI Acquire Burr-Brown
New GPS Receiver IC with Accuracy within 0.5m
New Improved Voltage Convertor from ON Semiconductor
National Semiconductor Improves Internet Delivery through the Cellular Network
New Dual Digital Potentiometer from Dallas Semiconductor
Linear Technologies New Single Supply Precision Op-Amp
Maxim's new RS485 Receivers with Fault Detection
Phillips new two-chip solution for Contactless Angular Measurement
Motorola's New Turbo-Charged ColdFire Microprocessor
Linear Technology's New Active Low Pass Filter
New Supply Monitor IC monitors 4 Voltage Lines ST Microclectronics releases new Flash Microcontroller with Flash Protection
New Technology for High Quality Phone Calls over the Internet
New Single Supply High Precision Op-Amps
24-bit Analogue to Digital Convertor Released
PICmicroŽ's with USB Connectivity
National Semiconductor Class D Audio Power Amplifier Chipset
Philips Semiconductors breaks the 64k Barrier


How To Order  |  Shopping Cart  |  Your Account  |  Order Status  |  Help

About Us  |  Contact Us

Copyright Information © 2001, Futurlec