Low-Power Type-C Receiver with High Idle Noise and DC-Level Rejection
AssigneeCypress Semiconductor Corporation
InventorsRishi Agarwal, Nicholas Alexander Bodnaruk
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Abstract
Techniques for low-power USB Type-C receivers with high noise rejection are described herein. In an example embodiment, a USB-enabled device comprises a receiver circuit coupled to a Configuration Channel (CC) line of a USB Type-C subsystem. The receiver circuit is configured to reject the incoming signal even when the incoming signal includes noise with a magnitude of more than 300 mVpp, and to operate in the presence of a VBUS charging current that is compliant with a USB-PD specification.
Claims21
1-20. (canceled)
A device comprising:
- a receiver circuit coupled to a Configuration Channel (CC) line of a Universal Serial Bus (USB) Type-C subsystem, wherein the receiver circuit is configured to:
- reject an incoming signal on the CC line when the incoming signal comprises noise with a magnitude of more than 300 mVpp;
- and
- operate in the presence of a VBUS charging current that is compliant with a USB-PD specification.
An integrated circuit (IC) controller comprising:
- a Universal Serial Bus (USB) Type-C subsystem;
- and
- a receiver circuit coupled to a Configuration Channel (CC) line of the USB Type-C subsystem, wherein the receiver circuit is configured to:
- reject an incoming signal on the CC line when the incoming signal comprises noise with a magnitude of more than 300 mVpp;
- and
- operate in the presence of a VBUS charging current that is compliant with a USB-PD specification.
A Universal Serial Bus (USB) Type-C cable, comprising:
- a first Type-C connector disposed at a first end of the Type-C cable;
- and
- a first integrated circuit (IC) chip disposed within the Type-C cable and coupled to a Configuration Channel (CC) line of the first Type-C connector, wherein the first IC chip includes a first receiver circuit configured at least to:
- reject an incoming signal on the CC line when the incoming signal comprises noise with a magnitude of more than 300 mVpp;
- and
- operate in the presence of a VBUS charging current on a VBUS line of the first Type-C connector, wherein the VBUS charging current is compliant with a USB-PD specification.
Dependencies are inferred from the claim text.