Other features include overtemperature shutdown, line status monitoring (load detection and low supply voltage detection), undervoltage detection, and a wide operating temperature range. Typical input referred noise spec is rated at 25-nV/√Hz. The AFE chip offers 1-A (p-p) output drive current capability. The HCPL-800J is designed to work with various transceiver ICs and significantly simplifies the implementation of a powerline modem. He added that transmitter robustness is further enhanced with integrated load detection and overtemperature protection functions. "Excellent transmitter performance is achieved with the use of a high-efficiency, low-distortion line driver stage on-chip," said Simon Lam, product manager for Agilent's Isolation Products Division based in Singapore. However, approval under the following safety standards is currently pending: VDE0884/06.92 (IEC/EN/DIN EN6) with VIORM = 891-V peak UL 1577, component recognition program, File E55361 and CSA Acceptance Notice #5, File CA 88324. At 4.2-kV isolation and -60-dB Tx harmonic distortion, the HCPL-800J chip is crafted to comply with international safety standards such as UL, CSA and VDE, as well as EMI specifications such as CENELEC EN-50065-1, FCC part 15 Class B. In addition to eliminating signal transformer and drastically cutting parts count, the DAA chip provides high isolation and very low Tx harmonic distortion to comply with safety and EMI standards. By combining isolation, Tx line driver and Rx amplifiers functions in a single package, it provides a lower cost, higher performance alternative to current AFE designs that combine an isolation transformer with multiple discrete components. The single-chip solution improves PLM performance and reliability, and simplifies design. Furthermore, the developer claims that it is the first fully integrated optical-based AFE chip for powerline modems. This 0.6 micron biCMOS-based data access arrangement (DAA) chip, labeled HCPL-800J, replaces more than 30 discrete components, while reducing board space by 50%. The result is a fully integrated, optical-based analog front-end (AFE) chip for narrowband powerline modems (PLMs). Aiming to make a dent in the emerging narrowband powerline communication modems used in automated meter readings (AMRs) and home-appliance automation applications, Agilent Technologies has extended its optoelectronics expertise and manufacturing muscle to the front-end section of these modems.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |