CMOS SONET/ATM receiver suitable for use with pseudo ECL and TTL signaling environments
First Claim
1. A pulse receiver, comprising:
- (a) a pair of complementary symmetry metal oxide silicon (CMOS) common gate amplifiers connected between a 5 volt supply (ECL) voltage rail and an ECL ground (AGND), for receiving a pair of pulse input signals IN and INB and for providing a pair of first pulse signals,(b) CMOS means for distorting said first pulse signals, to create second pulse signals from said converter having a duty cycle having a longer low logic level interval than high logic level interval,(c) a CMOS latch for receiving and latching said second output signals from the common gate amplifiers at logic levels compatible with circuits formed of CMOS elements,(d) a CMOS double to single ended converter connected between a VDD voltage rail and VSS ground, for receiving the latched output signals,(e) means for providing an output signal referenced to VDD and ground from said converter.
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Accused Products
Abstract
A pulse receiver, comprising a pair of complementary symmetry metal oxide silicon (CMOS) common gate amplifiers connected between a 5 volt supply (ECL) voltage rail and an ECL ground (AGND), for receiving a pair of pulse input signals IN and INB and for providing a pair of first pulse signals, CMOS apparatus for distorting the first pulse signals, to create second pulse signals from the converter having a duty cycle having a longer low logic level interval than high logic level interval, a CMOS latch for receiving and latching the second output signals from the common gate amplifiers at logic levels compatible with circuits formed of CMOS elements, a CMOS double to single ended converter connected between a VDD voltage rail and VSS ground, for receiving the latched output signals, apparatus for providing an output signal referenced to VDD and ground from the converter.
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Citations
6 Claims
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1. A pulse receiver, comprising:
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(a) a pair of complementary symmetry metal oxide silicon (CMOS) common gate amplifiers connected between a 5 volt supply (ECL) voltage rail and an ECL ground (AGND), for receiving a pair of pulse input signals IN and INB and for providing a pair of first pulse signals, (b) CMOS means for distorting said first pulse signals, to create second pulse signals from said converter having a duty cycle having a longer low logic level interval than high logic level interval, (c) a CMOS latch for receiving and latching said second output signals from the common gate amplifiers at logic levels compatible with circuits formed of CMOS elements, (d) a CMOS double to single ended converter connected between a VDD voltage rail and VSS ground, for receiving the latched output signals, (e) means for providing an output signal referenced to VDD and ground from said converter. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification