Adaptive Receiver Clocking for Multi-Band Signal Read-Back
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Solution Overview
Problem
Existing receivers face limitations in receiving signals of various frequency bands due to fixed transmission/reception frequencies, leading to potential malfunctions and reduced efficiency, especially with the advancement of high-specification data transmission.
Innovation Solution
A receiver is designed with a signal processing part, frequency detector, and controller to adaptively set read-back frequencies based on detected frequency information, using a clock generator to generate a second clock that matches the host's frequency, thereby supporting multiple frequency bands and preventing malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the transmission/reception frequency is fixed by pre-agreement, then data acquisition is simplified, but the available frequency bands are limited
Solution Approach 1:
The receiver dynamically adjusts its reception frequency based on the host's transmission frequency through frequency detection and adaptive setting. The controller modifies the read-back frequency according to detected frequency information, enabling the system to adapt to different frequency bands while maintaining simplified data acquisition operations.
2Device complexity
If the oscillator frequency is used directly, then the receiver structure is simple, but frequency mismatch with the host occurs due to oscillator characteristics
Solution Approach 1:
The system implements frequency detection feedback where the frequency detector monitors the host's transmission frequency and provides frequency information to the controller. The controller then adaptively sets the read-back frequency based on this feedback, ensuring accurate frequency matching while maintaining a relatively simple receiver structure using the existing oscillator.
3Device complexity
If the frequency band is limited, then the receiver design is straightforward, but high-performance data transmission cannot be supported
Solution Approach 1:
The receiver changes its operating frequency parameter adaptively based on the host's transmission frequency. By detecting the host's frequency and adjusting the read-back frequency accordingly, the system can operate across multiple frequency bands, thereby supporting high-performance data transmission without significantly complicating the receiver design.
Data Source
AI summary
A receiver includes a filter for receiving and filtering an input signal from a host; a signal processing part configured to separate data components and frequency components from the filtered input signal; a frequency detector configured to receive the separated frequency components of the input signal and detect period information; a first clock generator configured to generate a clock for a signal to be transmitted to the host based on the detected period information of the input signal; and a controller configured to control the frequency detector and the first clock generator to read back the signal to the host.