Category Archives for Components

The PGA2311

For those who are interested, in Figure 3 we have drawn the internals of the PGA2311. It is immediately clear that we have two (because it is stereo) amplifiers, the amplification of which are set by a set of (serial) … Continue reading

10. June 2019 by sam
Categories: Components | Comments Off on The PGA2311

Optocouplers

Sometimes circuits need to be isolated from each other for safety reasons, noise reduction or even to simplify a circuit function. An early classic example is e photoresistor that Gibson and Fender used to add a tremolo effect in early … Continue reading

01. June 2019 by sam
Categories: Components | Comments Off on Optocouplers

RV-8523

The RV-8523 is a real-time clock (RTC) with 20 registers each eight bits wide. The registers, numbered from 00H to 13H inclusive, are listed on the right in Figure 4. The RTC has an internal supply voltage monitor and can … Continue reading

13. February 2019 by sam
Categories: Components | Comments Off on RV-8523

LM75

The LM75 is the de facto standard temperature sensor with an I2C connection. Of the seven bits of its address only the upper four are fixed (at 1001); the other three bits can be set using external circuitry. Up to … Continue reading

13. February 2019 by sam
Categories: Components | Comments Off on LM75

PCF8574

The PCF8574 is a ‘remote 8-bit I/O expander’, a parallel I/O chip controlled over an I2C bus interface: see Figure 2. It comes in two variants, which differ only in their I2C slave address. In the case of the PCF8574 … Continue reading

13. February 2019 by sam
Categories: Components | Comments Off on PCF8574

Phantastron

Phantastron is a special multivibrator circuit with very precise timing invented during the Second World War. The Phantastron is a very clever circuit indeed, but I am sure that if its creator Alan Dower Blumlein had known about the Umac … Continue reading

18. July 2018 by sam
Categories: Components | Comments Off on Phantastron

Würth Elektronik on Electronica 2016

Würth Elektronik has expanded their range of integrated power modules with the addition of the MagI³C-FISM (Fixed Isolated SIP Module) and MagI³C-FDSM (Fixed Step Down Regulator SIP Module) series. The MagI³C-FDSM is a step down regulator with a fixed output … Continue reading

10. July 2018 by sam
Categories: Components | Comments Off on Würth Elektronik on Electronica 2016

Fetron Solid-state Tube

Actually it’s a tube substitute, entirely solid-state but in the form factor of the tube that it replaces. It uses cascoded JFETs (junction field-effect transistors) to duplicate the transfer characteristics of specific types of vacuum tubes (mainly pentodes but some … Continue reading

05. July 2018 by sam
Categories: Components | Tags: | Comments Off on Fetron Solid-state Tube

Ultra-Low Forward Voltage Schottky Diodes

Toshiba Electronics Europe (TEE) has extended its family of surface mount Schottky barrier diodes (SBDs) with a new device CxS15S30 device based on the latest Toshiba semiconductor process, which improves forward voltage and reverse current performance. The CxS15S30 SBD offers … Continue reading

05. July 2018 by sam
Categories: Components | Comments Off on Ultra-Low Forward Voltage Schottky Diodes