Function Generator ICs

A function generator is also known as a waveform generator and is an electronic device which has a very wide frequency range that can be used to produce different waveforms as its output signal. They are very versatile instruments as they can produce a wide variety of waveforms, frequencies, amplitude and duty cycle and each is suitable for different applications. Function generators called arbitrary waveform generators will allow you to generate any waveform and shape you want.


They are typically used to test analogue devices such as amplifiers and communications equipment, production testing and equipment maintenance.


There are various function generator ICs (or waveform generator ICs) available and all can be incorporated into a circuit to produce the different periodic waveforms required, common output wave types include:


  • Sine or sinusoidal - consists of a single frequency, looks like a continuous wave and can be easily generated, considered the most fundamental building block of sound

  • Square – non-sinusoidal waveform (has multiple sine waves of different frequencies), contains odd harmonics. Found in electronics and signal processing. Used as timing references

  • Triangle – non-sinusoidal, triangular in shape. Like the square, contains odd harmonics of the fundamental frequency but the power of harmonics is twice as low as their analogues in the square wave.

  • Sawtooth or saw wave – non-sinusoidal, looks like the teeth of a saw. Contains both even and odd harmonics ideal for musical sounds.

How do function generator circuits work?


A basic function generator circuit produces, for example, a triangular waveform at a frequency that can be controlled. The triangular wave is used as the base for all of the circuit’s other outputs, which are generated by charging and discharging a capacitor (used to store an electric charge) to shape the waveform. As the output voltage reaches an upper or lower limit, the charging or discharging is reversed by a comparator (a device used to compare two electrical signals). Different frequencies can then be achieved by varying the size of the capacitor and charge current, as well as the frequency of the base triangular wave.


Difference between a signal generator and a function generator?


A function generator produces the same waves as a signal generator but also custom shapes (advantage this device has). Some have high speed digital to analogue converters that can emulate all sorts of shapes for the signal. Sometimes there are filters to remove undesired harmonics at the output and their frequency range is usually limited at the upper levels.


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Omschrijving Prijs Maximum Frequency Maximum Duty Cycle Package Type Pin Count Dimensions Height Length Maximum Operating Supply Voltage Maximum Operating Temperature Maximum Output Frequency Minimum Operating Supply Voltage Minimum Operating Temperature Width Mounting Type
RS-stocknr. 169-0077
FabrikantnummerSI5351A-B-GT
FabrikantSilicon Labs
€ 0,89
Each (In a Tube of 50)
Aantal stuks
100MHz 55% MSOP 10 4 x 4 x 0.85mm 0.85mm 4mm 3.6 V +85 °C 160MHz 3 V -40 °C 4mm Surface Mount
RS-stocknr. 823-1987
FabrikantnummerSi5351A-B-GT
FabrikantSilicon Labs
€ 1,026
Each (In a Pack of 5)
Aantal stuks
100MHz 55% MSOP 10 4 x 4 x 0.85mm 0.85mm 4mm 3.6 V +85 °C 160MHz 3 V -40 °C 4mm Surface Mount
RS-stocknr. 912-6583
FabrikantnummerAD5932YRUZ
FabrikantAnalog Devices
€ 7,039
Each (In a Tube of 96)
Aantal stuks
- - TSSOP 16 5 x 4.4 x 1.05mm 1.05mm 5mm - +105 °C - - -40 °C 4.4mm Surface Mount
RS-stocknr. 159-7762
FabrikantnummerAD5930YRUZ
FabrikantAnalog Devices
€ 10,29
Each (In a Tube of 75)
Aantal stuks
- - TSSOP 20 6.5 x 7.6 x 1.05mm 1.05mm 6.5mm - +125 °C - - -40 °C 4.4mm Surface Mount
RS-stocknr. 709-4807
FabrikantnummerAD5932YRUZ
FabrikantAnalog Devices
€ 9,00
Each
Aantal stuks
- - TSSOP 16 5 x 4.4 x 1.05mm 1.05mm 5mm - +105 °C - - -40 °C 4.4mm Surface Mount
RS-stocknr. 709-6011
FabrikantnummerAD5930YRUZ
FabrikantAnalog Devices
€ 12,60
Each
Aantal stuks
- - TSSOP 20 6.5 x 7.6 x 1.05mm 1.05mm 6.5mm - +125 °C - - -40 °C 4.4mm Surface Mount
RS-stocknr. 168-9978
FabrikantnummerSI5338C-B-GM
FabrikantSilicon Labs
€ 9,21
Each (In a Tray of 75)
Aantal stuks
710MHz 55% QFN 24 4 x 4 x 0.85mm 0.85mm 4mm 3.63 V +85 °C 200MHz 1.71 V -40 °C 4mm Surface Mount
RS-stocknr. 168-9983
FabrikantnummerSI52144-A01AGM
FabrikantSilicon Labs
€ 2,13
Each (In a Tray of 490)
Aantal stuks
25MHz 55% QFN 24 4 x 4 x 0.75mm 0.75mm 4mm 3.465 V +85 °C 100MHz 3.135 V -40 °C 4mm Surface Mount
RS-stocknr. 820-9630
FabrikantnummerAD9548BCPZ
FabrikantAnalog Devices
€ 35,72
Each
Aantal stuks
1GHz 60% LFCSP VQ 88 12.1 x 12.1 x 0.85mm 0.85mm 12.1mm 3.465 V +85 °C 1000MHz 3.135 V -40 °C 12.1mm Surface Mount
RS-stocknr. 168-9984
FabrikantnummerSI52147-A01AGM
FabrikantSilicon Labs
€ 2,85
Each (In a Tray of 490)
Aantal stuks
25MHz 55% QFN 48 6 x 6 x 0.75mm 0.75mm 6mm 3.465 V +85 °C 100MHz 3.135 V -40 °C 6mm Surface Mount
RS-stocknr. 168-9980
FabrikantnummerSI52112-A1-GM2
FabrikantSilicon Labs
€ 1,23
Each (On a Tape of 100)
Aantal stuks
25MHz 55% TDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 3.46 (Extended) V, 3.63 (Commercial) V +85 °C 100MHz 2.97 (Commercial) V, 3.13 (Extended) V -40 °C 3mm Surface Mount
RS-stocknr. 169-0003
FabrikantnummerSL28PCIE26ALC
FabrikantSilicon Labs
€ 3,11
Each (In a Tube of 73)
Aantal stuks
100MHz 55% QFN 32 5.1 x 5.1 x 0.8mm 0.8mm 5.1mm 3.465 V +85 °C - 3.135 V 0 °C 5.1mm Surface Mount
RS-stocknr. 160-9827
FabrikantnummerAD9548BCPZ
FabrikantAnalog Devices
€ 29,46
Each (In a Tray of 168)
Aantal stuks
1GHz 60% LFCSP VQ 88 12.1 x 12.1 x 0.85mm 0.85mm 12.1mm 3.465 V +85 °C 1000MHz 3.135 V -40 °C 12.1mm Surface Mount
RS-stocknr. 158-2557
FabrikantnummerAD2S99BPZ
FabrikantAnalog Devices
€ 22,573
Each (In a Tube of 49)
Aantal stuks
- - PLCC 20 9.04 x 8.38 x 3.94mm 3.94mm 9.04mm ±5.25 V +85 °C - ±4.75 V -40 °C 8.38mm Surface Mount
RS-stocknr. 819-6786
FabrikantnummerSi5351C-B-GM
FabrikantSilicon Labs
€ 2,54
Each (In a Pack of 2)
Aantal stuks
27MHz 55% QFN 20 4 x 4 x 0.85mm 0.85mm 4mm 2.75 V +85 °C - 2.25 V -40 °C 4mm Surface Mount
RS-stocknr. 850-7833
FabrikantnummerAD9520-4BCPZ
FabrikantAnalog Devices
€ 21,21
Each
Aantal stuks
250MHz 50% LFCSP VQ 64 9.1 x 9.1 x 0.95mm 0.95mm 9.1mm 3.465 V +85 °C 1800MHz 3.135 V -40 °C 9.1mm Surface Mount
RS-stocknr. 168-9981
FabrikantnummerSI52142-A01AGM
FabrikantSilicon Labs
€ 1,21
Each (In a Tray of 490)
Aantal stuks
25MHz 55% QFN 24 4 x 4 x 0.75mm 0.75mm 4mm 3.465 V +85 °C 100MHz 3.135 V -40 °C 4mm Surface Mount
RS-stocknr. 709-4706
FabrikantnummerAD2S99BPZ
FabrikantAnalog Devices
€ 25,45
Each
Aantal stuks
- - PLCC 20 9.04 x 8.38 x 3.94mm 3.94mm 9.04mm ±5.25 V +85 °C - ±4.75 V -40 °C 8.38mm Surface Mount
RS-stocknr. 800-0916
FabrikantnummerMAX2623EUA+
FabrikantMaxim
€ 4,345
Each (In a Pack of 2)
Aantal stuks
950MHz - μMAX 8 3.05 x 3.05 x 0.95mm 0.95mm 3.05mm 5.5 V +85 °C - 2.7 V -40 °C 3.05mm Surface Mount
RS-stocknr. 796-0426
FabrikantnummerSi52147-A01AGM
FabrikantSilicon Labs
€ 3,54
Each (In a Pack of 2)
Aantal stuks
25MHz 55% QFN 48 6 x 6 x 0.75mm 0.75mm 6mm 3.465 V +85 °C 100MHz 3.135 V -40 °C 6mm Surface Mount
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