8/6/2004 - Texas Instruments Incorporated (TI) (NYSE:TXN) introduced seven pseudo emitter-coupled logic (PECL) and translator/transistor logic (TTL) drivers and receivers, including the industry´s first 3.3-V PECL translators and five devices that are direct replacements for translators discontinued by Agere Systems Inc. (Agere). The devices translate between differential input logic levels and TTL output logic levels. Designed for handling digital data or clock signals over balanced transmission lines, they are well-suited for applications such as telecommunications and medical imaging. (See www.ti.com/sc04173.)
The 3.3-V TB3R1 and TB3R2 quad differential PECL receivers offer a low-voltage migration path for designers who have previously used 5-V supply PECL devices. Five other devices - the TB5D1M, TB5D2H, TB5R1, TB5R2 and TB5T1 - have combined features to replace nine former Agere PECL devices. The devices match the original Agere pinouts, allowing for plug-in replacement. Each new device offers 3-kV HBM and 2-kV CDM electrostatic discharge (ESD) protection and an operating temperature range of -40°C to 85°C.
Quad Differential PECL Drivers (TB5D1M and TB5D2H)
Quad Differential PECL Receivers (TB5R1, TB5R2, TB3R1, TB3R2)
Dual Differential PECL Driver/Receiver (TB5T1)
The PECL translator devices are available now from TI and its authorized distributors.
The PECL translators join other TI interface and clocking products meeting designers' needs in PECL to TTL translation applications, such as the CDCM1804 and CDCM1802 clock buffers, each of which provides both a LVPECL output and a LVCMOS output.
For more information on finding the most appropriate bus interface solution for today´s advanced system architectures, please refer to the "Comparing Bus Solutions" application report available at www.ti.com/sc04173b.
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