| 摘要 |
A hybrid circuit for use with a transformer includes a differential transmit amplifier having first and second input terminals for receiving a signal to be transmitted and a pair of output terminals that may be coupled to the transformer. The hybrid circuit also includes a summing node receive amplifier having an input terminal that may be coupled to the transformer and an output terminal that is accessible external to the hybrid circuit. The differential transformer provides for improved transmit amplitude when a low supply voltage is used. The externally accessible output of the summing node receive amplifier provides for adjustment of the receive gain to improve dynamic range and for tuning of the hybrid for different circuit requirements.
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