摘要:
An active transceiver circuit (212) for transmission of a low bitrate data signal (177) over and reception of a high bitrate data signal (166R) from a single ended transmission medium (105), the transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109), comprises: an input port (204) for receiving a low bitrate input data signal (101), an output port (202) for delivering a high bitrate output data signal (102), a differential input/output port (203) for launching a low bitrate data signal (177) into the single ended transmission medium (105) and for receiving a high bitrate data signal (166R) from the single ended transmission medium (105), a first and second single ended output driver (191, 192) adapted for each delivering, on their respective output nodes (111, 112), the low bitrate input data signal (101) shaped to a maximum slew rate that is at least 5 times smaller than the maximum slew rate of the received high bitrate data signal (166R), and a high bitrate receiver (117) for receiving the signals at output nodes (111, 112) of the first and second single ended output drivers (191, 192), and for generating a high bitrate output data signal (102) on the output port (202). The transceiver circuit (212) may be incorporated in a transceiver (200).
摘要:
An active bidirectional splitter (212) for transmission and reception of data signals over a single ended transmission medium (105) comprises an input port (150), an output port (152) and a differential combined input/output port (151), a first differential output driver (115) for receiving an input signal (144) from the input port (150) and transmitting this signal to the differential input/output port (151), a second differential output driver (116) for receiving the input signal (144) from the input port (150), a first averaging circuit (121) for averaging the differential signal (146, 147) at the differential input/output port (151), a second averaging circuit (120) for averaging the differential signal (144, 145) at the output of the second differential output driver (116), and a receiver (117) for receiving both averaged signals (118, 119) from the first averaging circuit (121) and the second averaging circuit (120) and for generating therefrom an output signal on the output port (152).
摘要:
An active transceiver circuit (412) is provided for transmission of a high bitrate data signal (166T) over and reception of a low bitrate data signal (177) from a single ended transmission medium (105) utilizing a common path for both transmission and reception, the single ended transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109). The transceiver circuit (412) comprises an input port (401) for receiving a high bitrate input data signal (301), an output port (402) for delivering a low bitrate output data signal (302), a differential input/output port (403) for launching a high bitrate data signal (166T) into the single ended transmission medium (105) and for receiving a low bitrate data signal (177) from the single ended transmission medium (105), a differential output driver (392) for receiving the high bitrate input data signal (301) and transmitting this signal to the differential input/output port (403), the latter port having an impedance (Z1) connected over it that has a first impedance value at frequencies of the frequency range of the low bitrate data signal, and a higher impedance value for higher frequencies.
摘要:
An active transceiver circuit (212) for transmission of a low bitrate data signal (177) over and reception of a high bitrate data signal (166R) from a single ended transmission medium (105), the transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109), comprises: an input port (204) for receiving a low bitrate input data signal (101), an output port (202) for delivering a high bitrate output data signal (102), a differential input/output port (203) for launching a low bitrate data signal (177) into the single ended transmission medium (105) and for receiving a high bitrate data signal (166R) from the single ended transmission medium (105), a first and second single ended output driver (191, 192) adapted for each delivering, on their respective output nodes (111, 112), the low bitrate input data signal (101) shaped to a maximum slew rate that is at least 5 times smaller than the maximum slew rate of the received high bitrate data signal (166R), and a high bitrate receiver (117) for receiving the signals at output nodes (111, 112) of the first and second single ended output drivers (191, 192), and for generating a high bitrate output data signal (102) on the output port (202). The transceiver circuit (212) may be incorporated in a transceiver (200).
摘要:
A communication system includes at least one transceiver circuit (212, 412) and a single ended transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109). The inner conductor (107) is coupled to the transceiver circuit (212, 412) by means of a first transmission line (121, 321), and the conductive shield layer (109) of the transmission medium (105) is coupled to the transceiver circuit (212, 412) by means of a second transmission line (122, 322). A first impedance (Z1, Z3) comprising at least one ferrite bead is coupled to the first transmission line (121, 321) for device power communication.
摘要:
An active transceiver circuit (212) for transmission of a low bitrate data signal (177) over and reception of a high bitrate data signal (166R) from a single ended transmission medium (105), the transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109), comprises: an input port (204) for receiving a low bitrate input data signal (101), an output port (202) for delivering a high bitrate output data signal (102), a differential input/output port (203) for launching a low bitrate data signal (177) into the single ended transmission medium (105) and for receiving a high bitrate data signal (166R) from the single ended transmission medium (105), a first and second single ended output driver (191, 192) adapted for each delivering, on their respective output nodes (111, 112), the low bitrate input data signal (101) shaped to a maximum slew rate that is at least 5 times smaller than the maximum slew rate of the received high bitrate data signal (166R), and a high bitrate receiver (117) for receiving the signals at output nodes (111, 112) of the first and second single ended output drivers (191, 192), and for generating a high bitrate output data signal (102) on the output port (202). The transceiver circuit (212) may be incorporated in a transceiver (200).
摘要:
A communication system includes at least one transceiver circuit (212, 412) and a single ended transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109). The inner conductor (107) is coupled to the transceiver circuit (212, 412) by means of a first transmission line (121, 321), and the conductive shield layer (109) of the transmission medium (105) is coupled to the transceiver circuit (212, 412) by means of a second transmission line (122, 322). A first impedance (Z1, Z3) comprising at least one ferrite bead is coupled to the first transmission line (121, 321) for device power communication.