COMMERCIAL Audio Codecs 637

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Part RoHS Manufacturer Telecom IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Package Body Material Surface Mount No. of Functions Output Code No. of Channels Technology Screening Level Nominal Negative Supply Voltage Operating Mode Maximum Supply Current Nominal Supply Voltage Hybrid Input Code Power Supplies (V) Package Style (Meter) Package Equivalence Code Sub-Category Terminal Pitch Maximum Operating Temperature Resolution (um) Minimum Operating Temperature Maximum Gain Tolerance Terminal Finish Maximum Output Voltage Terminal Position JESD-30 Code Output (V) Moisture Sensitivity Level (MSL) Maximum Seated Height Linear Coding Width Qualification Companding Law Input Type Additional Features Battery Feed Maximum Analog Input JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length Filter

PSB2160-P

Infineon Technologies

PCM CODEC

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

CMOS

-5 V

SYNCHRONOUS

.028 mA

5 V

+-5

IN-LINE

DIP24,.6

Codecs

2.54 mm

70 Cel

0 Cel

TIN LEAD

DUAL

R-PDIP-T24

5.1 mm

NOT AVAILABLE

15.24 mm

Not Qualified

A/MU-LAW

e0

31.9 mm

YES

PEB2060-N

Infineon Technologies

PCM CODEC

COMMERCIAL

J BEND

28

QCCJ

RECTANGULAR

PLASTIC/EPOXY

YES

1

CMOS

-5 V

SYNCHRONOUS

.012 mA

5 V

+-5

CHIP CARRIER

LDCC28,.4X.6

Codecs

1.27 mm

70 Cel

0 Cel

.2 dB

TIN LEAD

QUAD

R-PQCC-J28

3.8 mm

NOT AVAILABLE

8.95 mm

Not Qualified

A/MU-LAW

e0

14.05 mm

YES

PEB2265

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

FLATPACK

.8 mm

70 Cel

0 Cel

QUAD

S-PQFP-G64

2.45 mm

14 mm

Not Qualified

A/MU-LAW

14 mm

YES

PEB2266-H

Infineon Technologies

PROGRAMMABLE CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

.03 mA

5 V

5

FLATPACK

QFP64,.66SQ,32

Codecs

.8 mm

70 Cel

0 Cel

.25 dB

TIN LEAD

QUAD

S-PQFP-G64

2.45 mm

NOT AVAILABLE

14 mm

Not Qualified

A/MU-LAW

e0

14 mm

YES

PSB2163-N

Infineon Technologies

PCM CODEC

COMMERCIAL

J BEND

28

QCCJ

RECTANGULAR

PLASTIC/EPOXY

YES

1

BICMOS

.025 mA

5 V

5

CHIP CARRIER

LDCC28,.4X.6

Codecs

1.27 mm

70 Cel

0 Cel

.25 dB

TIN LEAD

QUAD

R-PQCC-J28

3.8 mm

16-BIT

8.95 mm

Not Qualified

A/MU-LAW

e0

14.05 mm

YES

PEB2465HV2.3

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

4

CMOS

SYNCHRONOUS

5 V

FLATPACK

.8 mm

70 Cel

0 Cel

QUAD

S-PQFP-G64

2.45 mm

14 mm

Not Qualified

A/MU-LAW

14 mm

YES

PSB2161

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

BICMOS

.037 mA

5 V

5

SMALL OUTLINE

SOP20,.4

Codecs

1.27 mm

70 Cel

0 Cel

TIN LEAD

DUAL

R-PDSO-G28

2.54 mm

16-BIT

8.9 mm

Not Qualified

A/MU-LAW

e0

18.3 mm

YES

PEB2466-HV1.2

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

4

CMOS

SYNCHRONOUS

5 V

FLATPACK

.8 mm

70 Cel

0 Cel

QUAD

S-PQFP-G64

2.45 mm

14 mm

Not Qualified

A/MU-LAW

14 mm

YES

PEB2465-H

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

40 mA

5 V

5

FLATPACK

QFP64,.66SQ,32

Codecs

.8 mm

70 Cel

0 Cel

Tin/Lead (Sn/Pb)

QUAD

S-PQFP-G64

2.45 mm

NOT AVAILABLE

14 mm

Not Qualified

A/MU-LAW

e0

14 mm

YES

PSB2161T

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

BICMOS

SYNCHRONOUS

5 V

SMALL OUTLINE

1.27 mm

70 Cel

0 Cel

DUAL

R-PDSO-G28

2.65 mm

7.6 mm

Not Qualified

A/MU-LAW

18.1 mm

YES

PEB2466-H

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

.04 mA

5 V

5

FLATPACK

QFP64,.66SQ,32

Codecs

.8 mm

70 Cel

0 Cel

QUAD

S-PQFP-G64

NOT AVAILABLE

Not Qualified

A/MU-LAW

YES

PSB7230

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

100

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

.091 mA

3.3 V

3.3,5

FLATPACK, LOW PROFILE, FINE PITCH

QFP100,.63SQ,20

Other Telecom ICs

.5 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G100

1.6 mm

14 mm

Not Qualified

A/MU-LAW

IT ALSO REQUIRES 5V SUPPLY

e0

14 mm

NO

PEB7274

Infineon Technologies

ADPCM CODEC

COMMERCIAL

GULL WING

44

QFP

SQUARE

PLASTIC/EPOXY

YES

4

CMOS

SYNCHRONOUS

5 V

5

FLATPACK

QFP44,.5SQ,32

Other Telecom ICs

.8 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G44

2.45 mm

10 mm

Not Qualified

A/MU-LAW

e0

10 mm

YES

Q7101-H6615

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

40 mA

5 V

FLATPACK

.8 mm

70 Cel

0 Cel

QUAD

S-PQFP-G64

2.54 mm

14 mm

Not Qualified

A/MU-LAW

14 mm

YES

PEB3065-N

Infineon Technologies

PCM CODEC

COMMERCIAL

J BEND

44

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

BICMOS

-5 V

.044 mA

5 V

+-5

CHIP CARRIER

LDCC44,.7SQ

Codecs

1.27 mm

70 Cel

0 Cel

Tin/Lead (Sn/Pb)

QUAD

S-PQCC-J44

4.57 mm

NOT AVAILABLE

16.6 mm

Not Qualified

A/MU-LAW

e0

16.6 mm

YES

PSB2134H

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

.04 mA

5 V

5

FLATPACK

QFP64,.66SQ,32

Codecs

.8 mm

70 Cel

0 Cel

95 dB

QUAD

S-PQFP-G64

2.45 mm

NOT AVAILABLE

14 mm

Not Qualified

A/MU-LAW

14 mm

YES

PEB2265H

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

2

CMOS

40 mA

5 V

5

FLATPACK

QFP64,.66SQ,32

Codecs

.8 mm

70 Cel

0 Cel

.25 dB

Tin/Lead (Sn/Pb)

QUAD

S-PQFP-G64

NOT AVAILABLE

Not Qualified

A/MU-LAW

e0

YES

PEB2260-N

Infineon Technologies

PCM CODEC

COMMERCIAL

J BEND

28

QCCJ

RECTANGULAR

PLASTIC/EPOXY

YES

1

CMOS

-5 V

SYNCHRONOUS

.028 mA

5 V

+-5

CHIP CARRIER

LDCC28,.4X.6

Codecs

1.27 mm

70 Cel

0 Cel

.2 dB

TIN LEAD

QUAD

R-PQCC-J28

3.8 mm

NOT AVAILABLE

8.95 mm

Not Qualified

A/MU-LAW

e0

14.05 mm

YES

PSB7238

Infineon Technologies

PCM CODEC

COMMERCIAL

GULL WING

100

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

.091 mA

3.3 V

3.3,5

FLATPACK, LOW PROFILE, FINE PITCH

QFP100,.63SQ,20

Other Telecom ICs

.5 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G100

1.6 mm

14 mm

Not Qualified

A/MU-LAW

IT ALSO REQUIRES 5V SUPPLY

e0

14 mm

NO

PSB2132H

Infineon Technologies

PROGRAMMABLE CODEC

COMMERCIAL

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

.03 mA

5 V

5

FLATPACK

QFP64,.66SQ,32

Codecs

.8 mm

70 Cel

0 Cel

95 dB

QUAD

S-PQFP-G64

2.45 mm

NOT AVAILABLE

14 mm

Not Qualified

A/MU-LAW

14 mm

YES

PEB2060

Infineon Technologies

PCM CODEC

COMMERCIAL

THROUGH-HOLE

22

DIP

RECTANGULAR

NO

1

CMOS

-5 V

28 mA

5 V

+-5

IN-LINE

DIP22,.4

Codecs

2.54 mm

70 Cel

0 Cel

.2 dB

Tin/Lead (Sn/Pb)

DUAL

R-XDIP-T22

NOT AVAILABLE

Not Qualified

A/MU-LAW

e0

YES

PSB2163-P

Infineon Technologies

PCM CODEC

COMMERCIAL

THROUGH-HOLE

28

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

BICMOS

.025 mA

5 V

5

IN-LINE

DIP28,.6

Codecs

2.54 mm

70 Cel

0 Cel

.25 dB

TIN LEAD

DUAL

R-PDIP-T28

4.6 mm

16-BIT

15.24 mm

Not Qualified

A/MU-LAW

e0

35.9 mm

YES

DS2165QL/T&R

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

3 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.5062 mm

Not Qualified

A/MU-LAW

e0

11.5062 mm

NO

DS2165Q/T&R

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e0

11.505 mm

NO

DS2164Q

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

5

CHIP CARRIER

LDCC28,.5SQ

Codecs

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e0

245

11.505 mm

NO

DS2130+

Maxim Integrated

ADPCM CODEC

COMMERCIAL

THROUGH-HOLE

28

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

SYNCHRONOUS

5 V

IN-LINE

2.54 mm

70 Cel

0 Cel

MATTE TIN

DUAL

R-PDIP-T28

1

5.08 mm

15.24 mm

Not Qualified

A/MU-LAW

e3

30

260

32.004 mm

NO

DS2164Q+T&R

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e3

11.505 mm

NO

DS2165QL+

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

3 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J28

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

NOT SPECIFIED

NOT SPECIFIED

11.505 mm

NO

DS2165Q+T&R

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e3

245

11.505 mm

NO

DS2130Q

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e0

11.505 mm

NO

DS2164Q/T&R

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e0

11.505 mm

NO

DS2264

Maxim Integrated

ADPCM CODEC

COMMERCIAL

NO LEAD

35

RECTANGULAR

UNSPECIFIED

NO

4

SYNCHRONOUS

MICROELECTRONIC ASSEMBLY

70 Cel

0 Cel

TIN LEAD

SINGLE

R-XSMA-N35

Not Qualified

A/MU-LAW

e0

NO

DS2165QL

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

3 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e0

11.505 mm

NO

DS2130Q+

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQCC-J28

1

4.57 mm

11.5062 mm

Not Qualified

A/MU-LAW

e3

245

11.5062 mm

NO

DS2165Q+

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e3

245

11.505 mm

NO

DS2165Q

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e0

11.505 mm

NO

DS2167

Maxim Integrated

ADPCM CODEC

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

CMOS

SYNCHRONOUS

5 V

5

IN-LINE

DIP24,.6

Codecs

2.54 mm

70 Cel

0 Cel

TIN LEAD

DUAL

R-PDIP-T24

5.08 mm

15.24 mm

Not Qualified

A/MU-LAW

e0

31.75 mm

YES

DS2264-EXP

Maxim Integrated

ADPCM CODEC

COMMERCIAL

NO LEAD

35

RECTANGULAR

UNSPECIFIED

NO

4

SYNCHRONOUS

MICROELECTRONIC ASSEMBLY

70 Cel

0 Cel

TIN LEAD

SINGLE

R-XSMA-N35

Not Qualified

A/MU-LAW

e0

NO

DS2164Q+

Maxim Integrated

ADPCM CODEC

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

SYNCHRONOUS

5 V

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQCC-J28

1

4.57 mm

11.505 mm

Not Qualified

A/MU-LAW

e3

30

260

11.505 mm

NO

DS2168

Maxim Integrated

ADPCM CODEC

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

CMOS

SYNCHRONOUS

5 V

5

IN-LINE

DIP24,.6

Codecs

2.54 mm

70 Cel

0 Cel

TIN LEAD

DUAL

R-PDIP-T24

5.08 mm

15.24 mm

Not Qualified

A/MU-LAW

e0

31.75 mm

YES

DS2130

Maxim Integrated

ADPCM CODEC

COMMERCIAL

THROUGH-HOLE

28

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

SYNCHRONOUS

5 V

IN-LINE

2.54 mm

70 Cel

0 Cel

TIN LEAD

DUAL

R-PDIP-T28

1

5.08 mm

15.24 mm

Not Qualified

A/MU-LAW

e0

32.004 mm

NO

STAC9228D3TAEYYX

Renesas Electronics

PCM CODEC

COMMERCIAL

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

3.3 V

FLATPACK, LOW PROFILE, FINE PITCH

.5 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQFP-G48

3

1.6 mm

7 mm

Not Qualified

e3

7 mm

YES

STAC9230D5TAEYY

Renesas Electronics

PCM CODEC

COMMERCIAL

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

5 V

FLATPACK, LOW PROFILE, FINE PITCH

.5 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQFP-G48

3

1.6 mm

7 mm

Not Qualified

e3

7 mm

YES

STAC9271D5TAEYYXR

Renesas Electronics

PCM CODEC

COMMERCIAL

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

5 V

FLATPACK, LOW PROFILE, FINE PITCH

.5 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQFP-G48

3

1.6 mm

7 mm

Not Qualified

e3

7 mm

YES

STAC9250D3TAEYY

Renesas Electronics

PCM CODEC

COMMERCIAL

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

3.3 V

FLATPACK, LOW PROFILE, FINE PITCH

.5 mm

70 Cel

0 Cel

MATTE TIN

QUAD

S-PQFP-G48

3

1.6 mm

7 mm

Not Qualified

e3

7 mm

YES

STAC9273D5TAEYY

Renesas Electronics

PCM CODEC

COMMERCIAL

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

SYNCHRONOUS

5 V

FLATPACK, LOW PROFILE, FINE PITCH

.5 mm

70 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G48

1.6 mm

7 mm

Not Qualified

e0

7 mm

YES

ACS422MD68TAGYYX

Renesas Electronics

PCM CODEC

COMMERCIAL

PIN/PEG

68

PGA

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

1

SYNCHRONOUS

1.9 V

GRID ARRAY

.5 mm

70 Cel

0 Cel

PERPENDICULAR

S-CPGA-P68

.9 mm

6 mm

ALSO OPERATES AT 1.8V

6 mm

NO

ACS422MD00TAGYYX

Renesas Electronics

PCM CODEC

COMMERCIAL

PIN/PEG

68

PGA

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

1

SYNCHRONOUS

1.8 V

GRID ARRAY

.5 mm

70 Cel

0 Cel

PERPENDICULAR

S-CPGA-P68

.9 mm

6 mm

6 mm

NO

Audio Codecs

Audio codecs are hardware or software components used to encode and decode digital audio signals. They are commonly used in a variety of applications, such as music production, voice communication, and digital audio broadcasting.

Audio codecs typically use a mathematical algorithm to convert analog audio signals into digital form, and vice versa. They can also compress and decompress digital audio signals to reduce their size and increase transmission efficiency.

Some common types of audio codecs include:

1. Pulse Code Modulation (PCM): This is a standard method of digitally representing analog audio signals. It samples the audio signal at regular intervals and records the amplitude of each sample as a binary number.

2. Adaptive Differential Pulse Code Modulation (ADPCM): This is a type of audio compression that reduces the size of digital audio files by removing redundant information. It achieves this by recording only the differences between adjacent samples, rather than recording each sample individually.

3. MPEG Audio Codecs: These are a family of audio compression algorithms developed by the Moving Picture Experts Group. They are commonly used in digital audio broadcasting and music production.

4. Dolby Digital: This is a popular audio codec used for home theater and digital television systems. It provides high-quality surround sound and is commonly used in DVD and Blu-ray discs.