Product category: Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: Phyter family of Ethernet transceivers
Edited by the Electronicstalk Editorial Team on 26 September 2005
Ethernet transceiver designed for
embedded systems
National Semiconductor has introduced the Phyter family of application-specific 10/100 physical layer Ethernet transceivers.
National Semiconductor has introduced the Phyter family of application-specific 10/100 physical layer Ethernet transceivers National's new Phyter family of commercial, industrial and extreme-environment Ethernet transceivers are the first to address the expansive, unique needs of design engineers who are developing embedded products that require network connectivity
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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"National's Phyter family enables this wave, bringing innovative, application-targeted capabilities to the Ethernet physical layer and allowing system developers to connect devices they never thought possible".
The Phyter commercial DP83848C transceiver addresses the quality, reliability and cost requirements of embedded developers networking their devices for the home.
In addition to key features such as IEEE 802.3 specification compliance, UNH interoperability certification, Auto-MDIX and up to 137m of cable reach, National's DP83848C incorporates a number of system cost-reducing features not found on other suppliers' physical layer products (PHYs).
For example, the DP83848C incorporates a 25MHz clock-out that eliminates the need, and hence space and cost, of an additional media access control (MAC) clock source component.
Between board space and component savings, the transceiver eliminates up to US $0.75 in system cost per port.
By removing non-deterministic signalling from the data path, the DP83848I ensures timing latency across the media independent interface (MII) and reduced media independent interface (RMII) MAC standard interfaces.
In addition to an industrial temperature range, the industry's highest electrostatic discharge (ESD) protection of 4000V, and up to 150m of cable reach, the DP83848I has IEEE 802.3 specification compliance guaranteed by test on every unit shipped.
National guarantees through test that every unit shipped is IEEE 802.3u specification-compliant from -40C to 125C.
The DP83848YB enables networking components to be used in harsh factory and system environments, such as engine blocks or motor controls.
The family interfaces to twisted pair media via an external transformer.
In addition, the DP83848I industrial and DP83848YB extreme transceivers fully support the joint test action group (JTAG) IEEE 1149.1 test standard for ease-of-manufacturing.
This family interfaces directly to MAC devices through the IEEE 802.3u-compliant MII or RMII interfaces.
The family also features Auto-MDIX, allowing straight or cross-over cables to be used transparently by the end-user.
National also offers the Phyter Ethernet integrity software utility that provides unmatched access for system support, debug and system design work.
Available for download from the firm's website, this utility gives the user complete access for link, status, device configuration and network status monitoring, and has been developed to support current and future National Semiconductor products.
All three Ethernet transceivers are packaged in lead-free 48-pin LQFPs.
The DP83848C commercial and DP83848I industrial transceivers are available now.
Samples of the DP83848YB extreme transceiver will be available in October and production quantities will be available in December.
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