Skip to main content

What is Side tone coupling? Explain with circuit diagram.

 
Simplex communication:in telephone communication only two entity is involved one is transmitting(talking) and one is receiving(listening) is known as simplex communication.

Half-duplex communication: in communication information transfer in both ways but not a simultaneously is known as the Half-duplex communication.


Full-duplex communication:in communication information transfer in both ways  simultaneously is known as the Full-duplex communication.

Side tone coupling: In telephones, it is the hearing of one's voice in the receiver when one speaks. Too much side tone make people speak lower and can cause feedback. Too little side tone and people may think the phone is not working or may shout.



                                 Fig: Smooth Tone Clickless CW Sidetone Generator


                                     Fig: Schematic diagram of the sidetone circuit

Figure Description: This is a simplified schematic diagram of a receiver sidetone circuit. Because current will not flow through a balanced circuit, the turns ratio of inductors L1 and L2 is unbalanced by a predetermined amount and the value of resistor R is changed so as not to match the line impedance. This way, a controlled amount of signal can be induced into L3 to be used as receiver sidetone.

Comments

Post a Comment

Popular posts from this blog

Design Engineer at Infineon Bangalore

  Hello Dear Readers, Currently at Infineon Bangalore vacancy for the Design Engineer role. Design analog and mixed-signal modules in CMOS and Smart PowerTechnologies, with a particular focus on achieving high-efficiency power conversion for applications using GaN devices; In your new role you will: Design analog and mixed-signal modules  in CMOS and Smart PowerTechnologies, with a particular focus on achieving high-efficiency power conversion for applications using GaN devices; Design and verify pre-silicon analog/mixed-signal integrated circuit blocks, including incorporating features for testing and quality assurance, and providing support for top-level integration; Assist in defining the requirements  for analog and mixed-signal blocks,aligning them with IP Module architecture, and ensuring compliance with requirements through documentation; Estimate effort and planning design work packages to meet project milestones; Provide essential support to physical design ...
1 comment
Read more

Engineer II - Analog Design Engineering at Microchip

Hello Dear Readers,   Currently at Microchip  vacancy for Engineer II - Analog Design Engineering role. Job Description: The Mixed Signal Development Group is responsible for delivering analog, digital and mixed-signal IP to divisions within Microchip. We work with leading edge CMOS processes to produce analog integrated circuits for wireline applications. From 112Gb/s+ SERDES to high-speed FEC engines, we enable technology that allows Microchip’s products to interface to the outside world.  Job Descriptions: As a member of the Mixed-Signal Development Group, the candidate will be supervised by a team leader/manager, and be engaged in the design of SERDES/DSP blocks, and other high-speed Digital Signal Processing blocks. This will involve taking a design from initial concept to production form. Throughout you will be mentored and coached by experienced engineers and be exposed to Microchip's Best-In-Class engineering practices. Job Responsibilities: Ramping up o...
2 comments
Read more

Analog Design Engineer II at onsemi

Hello Dear Readers,   Currently at onsemi  vacancy for  Analog Design  Engineer II role. JOB DESCRIPTION: An analog design engineer is expected to quickly take an analog design block through all phases of the development process, including design, simulation, and supervision of the layout/verification processes and evaluation/debug of silicon samples. A Senior Analog IC Design Engineer will be responsible for individual block designs using CMOS process. That person will work with the latest Cadence analogue design tools (Virtuoso Composer, Verilog) Spectre and appropriate PC-based tools (MATLAB). The nature of the circuits is Mixed Signal involving blocks such as switched capacitor amplifiers, data converters, charge pumps, references, voltage buffers, IO circuits and digital building blocks. QUALIFICATIONS: Analog engineer is expected to have PhD (no experience) or master’s degree in field of Electrical Engineering/VLSI/Electronics with 0-2 years of experience and w...
1 comment
Read more