Conexant Systems Offers Integrated ADSL Chipset

Electronic News, Sept 4, 2000

Conexant Systems Inc., Newport Beach, Calif., has begun shipping samples of an eight-port asymmetric DSL chipset that integrates each port's analog front-end (AFE) and line-driver into a single device. The AccessRunner 9009 chipset includes a reference design that can be used directly as a line card in central-office DSL access multiplexers that deliver high-speed Internet access services. Priced below $20 per port in OEM quantities, the central-office chipset also supports 1.5Mbit/sec. G.lite ADSL technology that Conexant says eliminates the need for telephone companies to install splitter equipment or special wiring at the customer premises. The AccessRunner 9009 is available in sample quantities with volume production scheduled for the first quarter of 2001. The single-chip AFE and line-driver is packaged in a 48-pin ETQFP, and the digital portion of the solution including DSP and controller functionality is packaged in a 17mm x 17mm chip-array BGA.

Maxim Rolls ADC Buffer Amps

Maxim Integrated Products, Sunnyvale, Calif., introduced two buffer amplifiers for analog-to-digital converters (ADCs) that offer fast settling times, a wide range for input voltage and low distortion. Maxim says these operational amps, the MAX4430 and the MAX4433, are targeted for high-speed, high-performance 14- and 16-bit ADCs designed into precision instrumentation and industrial applications. The fast settling times, wide input voltage range and low distortion are all characteristics that help condition analog signals properly before they are converted into digital signals. This helps in the conversion of high-speed, high-bandwidth signals. The MAX4430/ MAX4431 single amplifiers are offered in 5-pin SOT23 and 8-pin SO packages. The MAX4432/ MAX4433 dual amplifiers are offered in 8-pin muMAX and SO packages. Prices start at $1.75 each for quantities of 100,000 or more.

Mitel Unveils Echo-Cancellation Device

Mitel Semiconductor, Ottawa, introduced a voice echo canceller that is targeted for use in voice applications for next-generation packet-based networks. The MT9300B is a 32-channel device that uses an algorithm to remove echoes created in telecommunications networks. The device is designed for clear and reliable delivery of voice and data in applications such as voice-over-Internet Protocol network gateways, voice telephony-over asynchronous transfer mode, voice-over-frame relay, T1/E1 multichannel echo cancellation pools, and wireless base stations. The device is also configured to meet industry standards such as ITU-T G.168 requirements for voice quality in converged telecommunications networks. It is shipping in sample quantities and is priced at $93.32 each in volumes of 10,000. The device is available in a new 208-pin LBGA package.

LG Electronics Uses TI's DSP in LG MP3 Player

Texas Instruments Inc. said that LG Electronics of Korea has chosen TI's TMS320C5416 DSP for its new Internet Audio player, the LG MPFree PD-370, which will ship toward the end of the year. Dallas-based TI claims that its DSP extends battery life by up to 50 percent, potentially allowing users more than 10 hours of continuous music on two AAA batteries. The company did not announce the dollar value of the deal or details of shipping quantities. The player enables consumers to download music content directly via the integrated USB port. The LG MPFree will begin shipping in December for an estimated retail price of $249 for one SD memory card and $299 for a two-card package. The LG MPFree features two SD memory-card slots, each storing up to two hours of music onto 64Mbytes of SD memory cards, TI said.