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Transceivers boast 20dBm output power for RF ICs

Posted: 21 Feb 2012 ?? ?Print Version ?Bookmark and Share

Keywords:transceiver? wireless? power consumption?

Boasting the industry's highest performance, lowest power sub-GHz transceivers, Silicon Laboratories Inc. has announced the Si446x EZRadioPRO family. Uses for the devices include wireless applications such as smart meters, security and home automation systems, industrial control systems, sensor networks and electronic shelf labels.

The EZRadioPRO Si446x family provides extended range for wireless applications by delivering transmit output power (20dBm), sensitivity (-126dBm), link budget (146dB) and RX adjacent channel selectivity (58dB). The transceivers also feature a patented antenna diversity algorithm developed to counteract the effects of multipath and fading, effectively doubling the wireless range in a multipath/fading environment, noted Silicon Labs.

Designed with continuous frequency coverage from 119-1050MHz, the Si446x transceivers support advanced modulation techniques including 4GFSK, (G) FSK, GMSK and OOK with support for maximum data rates up to 1Mb/s (4GFSK). The transceivers comply with the 802.15.4 d/g specification and the Wireless M-Bus protocol for smart utility networks.

The Si446x transceivers feature exceptional phase noise, selectivity and blocking specifications, indicated Silicon Labs. As such, the devices are aimed at emerging narrowband applications requiring compliance with FCC Part 90 Mask D, ARIB STD-T96/T67 and ETSI EN 300. The products are the first transceivers to provide extended frequency coverage for new and emerging narrowband applications such as 151MHz multiuse radio service (MURS band) in the U.S., as well as the alternative 138MHz and 169MHz bands for the European market, added the company.

The Si446x transceivers achieve a 50nA sleep/standby current with register retention, consuming 75 percent less current in sleep mode than competing solutions, flaunted the company. The devices also claim to offer unmatched levels of low power consumption in TX and RX modes. Transmit current specifications as low as 17mA at 10dBm can be achieved for coin cell battery applications and 85mA at 20dBm for higher performance applications. The transceivers feature ultra-low receive current specifications in a high-performance receive mode (13mA) and in a low-current receive mode (10mA).

Silicon Labs' development environment for the Si446x family includes a wireless development kit based on the company's modular Unified Development Platform (UDP). Featuring two base boards and two RF test cards, the UDP provides a standalone evaluation and software development platform for EZRadioPRO devices. Silicon Labs' Wireless Development Suite (WDS) software enables developers to quickly and easily create and deploy efficient, robust and cost-effective wireless applications with little or no specific RF design and measurement experience. Silicon Labs also offers EZMac embedded media access control software to help developers create cost-effective mesh networks with less than 128 nodes.

Samples of the Si446x EZRadioPRO transceivers are available now. Pricing for the Si446x family starts at $1.57 in 10,000-unit quantities. The Si4463-915-DK and Si4461-915-DK evaluation kits are available for $799.

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