Multimode Receiver with Shared Input Interface for Pin Count Reduction
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Solution Overview
Problem
Existing communication systems face challenges in supporting multiple transmission modes efficiently, leading to increased pin count, die size, and development costs due to the need for separate interfaces and receivers for different modes, while also consuming more power.
Innovation Solution
A multimode receiver with a shared input interface that includes a transmission mode detector, capable of automatically detecting the transmission mode of an input signal and adaptively setting its operational mode, thereby enabling support for both single-ended and differential transmission modes on a single integrated circuit, reducing power consumption and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate interfaces and receivers are used for different transmission modes, then each mode can be supported independently, but pin count, die size, and development costs increase
Solution Approach 1:
The receiver is designed with a universal input interface that can accept both single-ended and differential transmission modes through the same physical pins. The receiver includes mode detection capability and can automatically switch between single-ended and differential operation modes, eliminating the need for separate interfaces for each transmission mode and thereby reducing pin count and die size.
Solution Approach 2:
The patent combines multiple receiver functions (single-ended receiver, differential receiver, and mode detection) into a single integrated receiver circuit. By merging these functions into one unified design, the patent reduces the overall device complexity while maintaining support for multiple transmission modes.
2Adaptability or versatility
If separate receivers are used for different transmission modes, then each mode can be optimized independently, but development costs increase
Solution Approach 1:
The receiver is designed with a universal input interface that can accept both single-ended and differential transmission modes through the same physical pins. The receiver includes mode detection capability and can automatically switch between single-ended and differential operation modes, eliminating the need for separate interfaces for each transmission mode and thereby reducing pin count and die size.
3Adaptability or versatility
If multiple transmission modes are supported with separate interfaces, then compatibility is improved, but power consumption increases
Solution Approach 1:
The receiver dynamically adapts its operation mode based on the detected transmission mode of the incoming signal. When operating in differential mode, the receiver uses higher circuit power to achieve higher transmission distances and noise immunity. When switching to single-ended mode, the receiver reduces its power consumption. This dynamic power adjustment allows the system to maintain compatibility with multiple transmission modes while optimizing power usage based on actual operational requirements.
Data Source
AI summary
In accordance with at least one example of the description, a multimode (MM) receiver includes a single-ended mode (SEM) receiver, a differential mode (DM) receiver, and a MM input interface. The SEM receiver having a SEM input. The DM receiver having a first DM input and a second DM input. The SEM receiver and the DM receiver being configured to support different transmission modes. The MM input interface having a first MM input and a second MM input. The MM input interface adapted to be coupled to a driver. The first MM input coupled to the SEM input and the first DM input. The second MM input coupled to the second DM input.