Howtosignalprocessing
- What is analog filter in DSP?
- What are analogue filters used for?
- How to design analog filter?
- What is the filter specifications required to design the analog filters?
What is analog filter in DSP?
Analog filters are circuits made of analog components such as resistors, capacitors, inductors, and op amps. Digital filters are often embedded in a chip that operates on digital signals, such as an MCU, SoC, processor, or DSP.
What are analogue filters used for?
Analogue filters are most often used in wave filtering applications, that is, where it is required to pass particular frequency components and to reject others from analogue (continuous-time) signals. Analogue filters have played an important part in the development of electronics.
How to design analog filter?
Analog Design Process
Digital filters can be designed using analog design methods by following these steps: Filter specifications are specified in the digital domain. The filter type (highpass, lowpass,bandpass etc.) is specified. An equivalent lowpass filter is designed that meets these specifications.
What is the filter specifications required to design the analog filters?
These analog filter design requirements include the ripple specification at the passband frequency edge, the attenuation specification at the stopband frequency edge, and the type of lowpass prototype (which we shall discuss) and its order.
