A 12 Gb/s Si bipolar 4:1-multiplexer IC for SDH systems |
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| Authors: | Lao ZH Langmann U Albers JN Schlag E Clawin D |
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| Affiliation: | Mikroelektronik-Zentrum, Ruhr-Univ., Bochum; |
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| Abstract: | The 4:1-multiplexer reported here is based on a 21 GHz fT 0.4 μm silicon bipolar technology and operates up to 12 Gb/s. For facilitating system applications, the input signals are aligned in phase and retiming of the output signal is provided. A phase control circuit permits the choice of the optimum clock phase for the first and the second multiplexer stages; an internal delay line is not necessary. The 4:1-multiplexer consumes about 1.8 W with a single supply voltage of -4.5 V |
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