Semiconductor device and transmission device
OwnerTomohiro TAMURA, Takayuki IWAIinventors
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Abstract
Reliable high-speed serial transmission is performed. A semiconductor device includes a first circuit, a second circuit, and a third circuit. The first circuit is configured to receive a first signal, which is a differential parallel signal, and output a second signal, which is a differential serial signal, based on the first signal. The second circuit is configured to adjust an output impedance of an output node of the first circuit. The third circuit is configured to vary a power supply voltage that is supplied to at least a part of the first circuit in accordance with an adjustment of the output impedance by the second circuit.
Claims20
A semiconductor device comprising:
- a first circuit configured to receive a first signal, which is a differential parallel signal, and output a second signal, which is a differential serial signal, based on the first signal;
- a second circuit configured to adjust an output impedance of an output node of the first circuit;
- and
- a third circuit configured to vary a power supply voltage that is supplied to at least a part of the first circuit in accordance with an adjustment of the output impedance by the second circuit.
A semiconductor device comprising:
- a source serial termination (SST) circuit configured to receive a first signal, which is a differential parallel signal, and output a second signal, which is a differential serial signal, based on the first signal;
- an impedance adjustment circuit configured to adjust an output impedance of an output node of the SST circuit;
- and
- a power supply circuit configured to vary a power supply voltage that is supplied to at least a part of the SST circuit in accordance with an adjustment of the output impedance by the impedance adjustment circuit.
Dependencies are inferred from the claim text.