Encoder & Decoder ICs

Encoders are logic semiconductor ICs (integrated circuits) that have been designed to encode and decode digital binary codes for inputs whilst decoders receive data transmissions in amateur radio frequency bands. They constantly monitor incoming signals for valid DTMF digits. These electronic circuits decode DTMF dial tones from telephone lines into touch-tone phones via a process known as tone dialling.

How do Encoders and Decoders work?

An encoder IC is manufactured to encode digital data from one format type or code to another that can accept multiple inputs and generate multi-bit output. Their primary functions are speed, security, standardisation by shrinking the size.

Decoder ICs increase connectivity in electronics to allow better control of applications. Home units like security alarm systems, electronic gates and garage doors, access control systems and everyday appliances make use of DTMF functionalities.

Types of Encoders and Decoders?

Encoder ICs are available with different encoding types such as Key and priority.

A DTMF (Dual Tone Multi-Frequency) decoder IC is a device that receives data transmissions in amateur radio frequency bands. They constantly monitor incoming signals for valid DTMF digits. These electronic circuits decode DTMF dial tones from telephone lines into touch-tone phones via a process known as tone dialling.

The most common types of DTMF Decoder ICs include 2-tone, 5-tone, multi-tone and burst-tone versions. Multi-tone decoders receive and translate multiple tones from the source whilst Burst-tone versions decode clashing frequencies into binary signals.

As well as being offered with variations of logic families, the number of pins on the IC and different mount types.

Applications of encoders and decoders

Encoders and decoders have an array of application use such as;

  • Smoke and fire alarm system
  • Home security systems
  • Identity tokens
  • Mobile phones and landlines

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Description Prix Operating Frequency Fabrication Technology Typical Supply Current Minimum CMRR Mounting Type Package Type Pin Count Dimensions Maximum Operating Supply Voltage Maximum Operating Temperature Automotive Standard Minimum Operating Supply Voltage Minimum Operating Temperature Number of Elements per Chip
N° de stock RS 816-8769
Référence fabricant74LVC1G157GW,125
MarqueNexperia
0,22 €
Each (In a Pack of 50)
Unité
- - - - Surface Mount SC-88 6 2.2 x 1.35 x 1mm 5.5 V +125 °C - 1.65 V -40 °C -
N° de stock RS 816-8766
Référence fabricant74LVC1G157GV,125
MarqueNexperia
0,203 €
Each (In a Pack of 50)
Unité
- - - - Surface Mount SC-74 6 3.1 x 1.7 x 1mm 5.5 V +125 °C - 1.65 V -40 °C -
N° de stock RS 436-7537
Référence fabricant74HC237D,652
MarqueNexperia
0,41 €
Each (In a Tube of 50)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 671-1740
Référence fabricantMM74HC138M
0,55 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 166-1644
Référence fabricantFSAL200QSCX
0,469 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount QSOP 16 5 x 3.9 x 1.357mm 5.5 V +85 °C - 3 V -40 °C -
N° de stock RS 145-2978
Référence fabricantMC14532BDG
0,55 €
Each (In a Tube of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 145-0073
Référence fabricantSN74ALS138AN
0,69 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.5 V +70 °C - 4.5 V 0 °C -
N° de stock RS 308-253
Référence fabricantSN74LS139AN
0,70 €
Each
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.25 V +70 °C - 4.75 V 0 °C -
N° de stock RS 145-0025
Référence fabricantCD4555BE
0,368 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 663-1149
Référence fabricantSN74AHC139D
0,283 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.5 V +85 °C - 2 V -40 °C -
N° de stock RS 124-2268
Référence fabricant74HCT4514D,652
MarqueNexperia
1,387 €
Each (In a Tube of 30)
Unité
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 5.5 V +125 °C - 4.5 V -40 °C -
N° de stock RS 186-9151
Référence fabricantMC14511BDR2G
0,384 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C AEC-Q100 3 V -55 °C -
N° de stock RS 662-7244
Référence fabricantCD74HCT138M96
0,176 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.5 V +125 °C - 4.5 V -55 °C -
N° de stock RS 759-9336
Référence fabricantFSAL200MTCX
0,99 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5.5 V +85 °C - 3 V -40 °C -
N° de stock RS 169-5674
Référence fabricantSN74HC148DR
0,066 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 145-4239
Référence fabricantMC74HC238ADR2G
0,083 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 709-2315
Référence fabricantCD4056BEE4
0,258 €
Each (In a Pack of 10)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 171-3382
Référence fabricant74HC138D
MarqueToshiba
0,087 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 10.2 x 3.9 x 1.38mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 518-9530A
Référence fabricantMC14543BDG
0,311 €
Each (In a Pack of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C 1
N° de stock RS 145-0381
Référence fabricantSN74LS259BN
0,807 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.25 V +70 °C - 4.75 V 0 °C -