By submitting this form, you are agreeing to the Terms of Use and Privacy Policy.
The information content of the modulated carrier wave is recovered using an electrical circuit called a demodulator (or a computer application in a software-defined radio).Amplitude modulation was the first type of modulation used to transmit sound through radio waves.
By rectifying an AM radio signal, one side of the carrier can be removed, and then the radio-frequency component can be removed via filtering, leaving only the modulating audio component.
This is the same as peak detection when the time constant is long enough. It can drive an earphone or an audio amplifier because the recovered audio frequency’s amplitude fluctuates with the modulating audio stream.
The Global digital demodulator market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
JESD204B Ultrasound Analog Front End with New Digital Decodifier Reduce Data Rates and Interface Routing by Up to 80%. Since medical ultrasounds are frequently utilised in diagnostic procedures, doctors have a rising need for ultrasound image systems to provide images of greater quality.
Increasing the signal-to-noise ratio of the receiving channel is one of the most effective ways to do this. The signal-to-noise ratio in a system should theoretically increase by 3 dB as the number of receiving channels doubles.
The simplest and most efficient way to improve the signal-to-noise ratio is therefore to increase the system’s channel count. For intermediate to high level medical ultrasound equipment at the moment, 128-channel has successfully established itself as the standard design, and 192 or more channels will become the upcoming fashion for high-end systems.
The data speeds between the analogue front-end and back-end digital processing, as well as the physical connections, dramatically rise with the number of channels. They also lead to an increase in the number of digital circuit device interfaces, processing power, prices, the complexity of the receiver circuit’s overall design, and the related power consumption.
The ultrasonic system now makes use of radio frequency (RF) beamforming. The resolution, sampling rate, and channel numbers of the analog-to-digital converter serve as the sole determinants of the output data rate (ADC). While this is happening, the analogue front end (AFE) often makes use of LVDS output interfaces.
