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 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 885-0709
Référence fabricantHT12E-20SOP
MarqueHoltek
1,199 €
Each (In a Tube of 38)
Unité
- - - - Surface Mount SOP 20 12.8 x 7.5 x 2.35mm 12 V +75 °C - 2.4 V -20 °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 124-2261
Référence fabricant74HC4514D,652
MarqueNexperia
0,99 €
Each (In a Tube of 30)
Unité
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 146-0387
Référence fabricant74HC139D,652
MarqueNexperia
0,301 €
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 663-1928
Référence fabricantSN74HC138PW
0,099 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 526-509
Référence fabricantSN74LS138D
0,719 €
Each (In a Tube of 40)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.25 V +70 °C - 4.75 V 0 °C -
N° de stock RS 145-0138
Référence fabricantCD4056BM
0,351 €
Each (In a Tube of 40)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 184-4278
Référence fabricantMC74HC238ADG
0,231 €
Each (In a Tube of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C AEC-Q100 2 V -55 °C -
N° de stock RS 166-1644
Référence fabricantFSAL200QSCX
0,445 €
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 178-6959
Référence fabricant74HC154D,652
MarqueNexperia
0,548 €
Each (In a Tube of 30)
Unité
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 144-9994
Référence fabricantSN74HCT138N
0,395 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.5 V +85 °C - 4.5 V -40 °C -
N° de stock RS 671-1490
Référence fabricant74AC138SC
0,508 €
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 833-709
Référence fabricantCD74HCT138M
0,63 €
Each
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 170-5537
Référence fabricant74HC238PW,118
MarqueNexperia
0,368 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 483-6421
Référence fabricant74HC154D,652
MarqueNexperia
0,66 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 825-3192
Référence fabricant74AC11138D
2,376 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 3 V -40 °C -
N° de stock RS 145-0512
Référence fabricantCD4028BPW
0,12 €
Each (In a Tube of 90)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 200-5288
Référence fabricantAS5045-ASST
Marqueams
12,44 €
Each
Unité
- - - - - SSOP 16 - - - - - - -
N° de stock RS 709-2472
Référence fabricantSN74LS156N
0,762 €
Each (In a Pack of 5)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.25 V +70 °C - 4.75 V 0 °C -