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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คัดกรอง / Filters

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รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 912-6583
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD5932YRUZ
THB257.90
Each (In a Tube of 96)
Units
- - TSSOP 16 5 x 4.4 x 1.05mm 1.05mm 5mm - +105 °C - - -40 °C 4.4mm Surface Mount
RS Stock No. 709-4807
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD5932YRUZ
THB314.55
Each
Units
- - TSSOP 16 5 x 4.4 x 1.05mm 1.05mm 5mm - +105 °C - - -40 °C 4.4mm Surface Mount
RS Stock No. 159-7762
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD5930YRUZ
THB366.833
Each (In a Tube of 75)
Units
- - TSSOP 20 6.5 x 7.6 x 1.05mm 1.05mm 6.5mm - +125 °C - - -40 °C 4.4mm Surface Mount
RS Stock No. 709-6011
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD5930YRUZ
THB427.59
Each
Units
- - TSSOP 20 6.5 x 7.6 x 1.05mm 1.05mm 6.5mm - +125 °C - - -40 °C 4.4mm Surface Mount
RS Stock No. 169-0077
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI5351A-B-GT
Brand :Silicon Labs
THB25.125
Each (In a Tube of 50)
Units
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 Stock No. 823-1987
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Si5351A-B-GT
Brand :Silicon Labs
THB26.866
Each: (In a Pack of 5)
Units
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 Stock No. 709-4706
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD2S99BPZ
THB903.07
Each
Units
- - 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 Stock No. 796-0410
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Si52143-A01AGM
Brand :Silicon Labs
THB90.25
Each: (In a Pack of 5)
Units
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 Stock No. 796-0388
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Si52112-A1-GM2
Brand :Silicon Labs
THB49.362
Each: (In a Pack of 5)
Units
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 Stock No. 796-0347
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Si5338C-B-GM
Brand :Silicon Labs
THB311.93
Each
Units
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 Stock No. 168-9978
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI5338C-B-GM
Brand :Silicon Labs
THB300.247
Each (In a Tray of 75)
Units
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 Stock No. 796-0401
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Si52142-A01AGM
Brand :Silicon Labs
THB50.236
Each: (In a Pack of 5)
Units
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 Stock No. 820-9630
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD9548BCPZ
THB1,244.50
Each
Units
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 Stock No. 168-9982
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI52143-A01AGM
Brand :Silicon Labs
THB72.722
Each (In a Tray of 490)
Units
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 Stock No. 819-6786
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Si5351C-B-GM
Brand :Silicon Labs
THB70.68
Each: (In a Pack of 2)
Units
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 Stock No. 168-9975
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI5338A-B-GM
Brand :Silicon Labs
THB415.901
Each (In a Tray of 75)
Units
710MHz 55% QFN 24 4 x 4 x 0.85mm 0.85mm 4mm 3.63 V +85 °C 710MHz 1.71 V -40 °C 4mm Surface Mount
RS Stock No. 168-9983
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI52144-A01AGM
Brand :Silicon Labs
THB71.269
Each (In a Tray of 490)
Units
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 Stock No. 158-2557
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD2S99BPZ
THB787.417
Each (In a Tube of 49)
Units
- - 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 Stock No. 160-9827
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD9548BCPZ
THB1,062.128
Each (In a Tray of 168)
Units
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 Stock No. 912-6552
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD2S99APZ
THB659.49
Each (In a Tube of 49)
Units
- - P-20A 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
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