Audio Amplifiers/Analog Switches – What is Depop?

Depop, sometimes known as “pop-and-click protection/supression”, usually quantified by “pop performance” is a circuit used to take out unwanted pops or click noises in a circuit.

Most notable for use in audio amplifiers and analog switching devices, is a great feature to have, especially if the input or output connection has to be switched during operation or in high-gain circuits where simply turning power ON or OFF will cause noises.

Common variants of this circuit are the use of capacitors, shunt resistors or some type of feedback gain control circuitry, otherwise circuits may have to be shutdown during switching to avoid this.

Below is a list of parts that hit in a depop search:
https://www.digikey.com/products/en?keywords=depop

Below are notable datasheets:
https://www.nxp.com/docs/en/data-sheet/TDA8932B.pdf
https://www.onsemi.com/pub/Collateral/NCP2820-D.PDF
https://www.st.com/content/ccc/resource/technical/document/datasheet/e6/5f/23/8e/d0/ac/43/e8/CD00003243.pdf/files/CD00003243.pdf/jcr:content/translations/en.CD00003243.pdf
https://datasheets.maximintegrated.com/en/ds/MAX9744.pdf

Part numbers

TS5USBA224RSWR
TS5USBA224RSWR
PI3USB223ZMEX
PI3USB223ZMEX
ISL54406IRUZ-T
ISL54406IRUZ-T
ISL54405IRUZ-T
ISL54405IRUZ-T
ISL54405IRTZ
ISL54211IRUZ-T
ISL54211IRUZ-T
NCN1154MUTAG
NCN1154MUTAG
ISL54405IVZ
ISL54409IRTZ-T
ISL54409IRUZ-T
ISL54410IRTZ-T
ISL54410IRUZ-T
TSU5611YZPR
ISL54406IRTZ
ISL54406IRTZ-T
ISL54405IRTZ-T
ISL54405IVZ-T
ISL54210IRTZ-T
ISL54210IRTZ
ISL54211IRTZ
ISL54211IRTZ-T
ISL54210IRUZ-T
LM4675SDX/NOPB
AUIRS2092STR
TPA3255DDVR
MAX9744ETH+
TS4990IST
NCP2820MUTBG
TPA6211A1DRBR
TPA6211A1DGNR
NCP2811ADTBR2G
TPA6211A1TDGNRQ1
TS4962IQT
LM4991LD/NOPB
TPA6133A2RTJR
TPA6130A2RTJR
MAX98306ETD+T
LM48310SD/NOPB
MAX9716EUA+T
LM4673SD/NOPB
LM4675SD/NOPB
TPA3111D1PWPR
LM4875MX/NOPB
LM4875MM/NOPB
SSM2305RMZ-REEL7
LM4865MX/NOPB
TPA0211DGNR
MAX98357AEWL+T
MAX98357AETE+T
LM48511SQ/NOPB
MAX9768BETG+T
LM48100QMHE/NOPB
LM4950TSX/NOPB
LM4952TSX/NOPB
TPA3121D2PWPR
SSM2529ACBZ-R7
MAX9850ETI+T
MAX9744ETH+T
MAX9737ETG+
MAX9768ETG+
LM4950TS/NOPB
TDA7269A
SSM2518CPZ-R7
TPA3123D2PWPR
TAS5731MPHPR
MAX9850ETI+
TDA7376B
MAX9736AETJ+
LM1876TF/NOPB
TAS6424QDKQRQ1
TAS5630BDKDR
MAX9709ETN+D
IS31AP4991-GRLS2-TR
IS31AP4991A-SLS2-TR
PAM8302AADCR
PAM8302AASCR
IS31AP2005-SLS2-TR
PAM8403DR-H
PAM8403DR
LM4808MX/NOPB
LM4810MM/NOPB
TPA6203A1DGNR
TPA6111A2DR
TPA711DGNR
LM4819MX/NOPB
TPA6204A1DRBR
TPA2034D1YZFR
LM4811MM/NOPB
LM4670SD/NOPB
LM4667MM/NOPB
LM4889MM/NOPB
LM4819MM/NOPB
TS4994IST
TPA6132A2RTER
MAX98300ETA+T
TPA3136D2PWPR
TPA3113D2PWPR
MAX98307ETE+T
TPA2008D2PWPR
DRV602PWR
TPA6017A2PWPR
TPA6130A2RTJT
SSM2305CPZ-REEL7
TPA6205A1DGN
MP7748SGF-Z
IRS2092STRPBF
SSM2306CPZ-REEL7
MAX9788ETI+T
TPA3140D2PWPR
MAX9716EUA+
LM4890M/NOPB
MAX9703ETJ+T
LM4940TSX/NOPB
MAX98400BETG+T
TAS5720LRSMT
TPA3111D1PWP
MAX13331GEE/V+
TPA0211DGN
MAX9768BETG+
TDA7296
TDA7376PDTR
MAX9703ETJ+
MAX9788ETI+
LM4952TS/NOPB
TDA7293V
MAX13330GEE/V+
TAS5715PHPR
TDA7264
TPA3125D2N
TDA7391
TDA7265
E-TDA7396
TDA7265B
TDA7292
SSM2518CPZ
TDA7294HS
TAS5611APHDR
LM4766T/NOPB
IS31AP4990D-UTLS2-TR
PAM8012AZN
NCP2820FCT1G
NCP2809BDMR2G
NCP2817BFCCT2G
LM4808MM/NOPB
PAM8408DR
TPA6203A1ZQVR
TPA6138A2PWR
PAM8008DR
TS4871IST
TPA311DR
TPA6110A2DGNR
PAM8404KGR
MAX98304EWL+T
LM4889MAX/NOPB
TPA2010D1YZFT
MAX97220BETE+T
LM4951SD/NOPB
LM4890MM/NOPB
TFA9879HN/N1,157
TPA0253DGQR
LM4808M/NOPB
TPA6211A1DGN
SSM2380CBZ-REEL7
MAX9722BEUE+
TPA3124D2PWPR
E-TDA7391PDTR
MAX98358ETE+
TAS5766MDCAR
IR4302MTRPBF
MAX9713ETJ+
TAS5727PHPR
MAX9730ETI+
LM4950TS
TPA3140D2PWP
TDA7295
TPA3002D2PHPR
TPA0202PWP
MAX9714ETJ+
TAS5760MDAP
E-TDA7375V
SSM3302ACPZ
TPA3007D1PW
TPA3251D2DDV
SSM3582BCPZ
TAS5611APHD
MAX9708ETN+D
TAS6424QDKQQ1
LM4941TMX/NOPB
BD5460GUL-E2
TAS2560YFFR
LM48512TL/NOPB
BU7150NUV-E2
MAX9788EWP+TG45
MAX9724CETC+
TAS5753MDDCAR
BD5413EFV-E2
MAX9791AETI+
MAX9792CETI+
BD5426EFS-E2
TPA0233DGQ
MAX9742ETX+
TPA0213DGQ
TDA7391LV
MAX9736BETJ+
TAS5713PHP
TPA6203A1DRBR
TPA6113A2DR
TS4962MEIJT
SSM2305RMZ-REEL
TDA7491P13TR
TDA7492MV13TR
TPA2051D3YFFT
TPA2054D4AYZKT
IRS2452AM
TAS5768MRMTT
E-TDA7375AV
TPA6030A4PWP
TS4995EIJT
PAM8301AAF
NCP2890AFCT2G
A21SP16J
PAM8303CBSC
PAM8304AYR
NCP2890DMR2G
NCS2632DTBR2G
PAM8303DBSC
PAM8406DR
TS488IQT
TS4990IDT
PAM8407DR
LM4808MMX/NOPB
LM4818MX/NOPB
PAM8124RHR
PAM8003DR
TPA6139A2RGTR
TPA6139A2PWR
TPA6205A1DGNR
TPA6205A1DRBR
NCP2811BDTBR2G
A22H165MJ
NCP2811AFCT1G
TPA2038D1YFFR
BD27400GUL-E2
TPA711DR
TS4890IST
BD7836EFV-E2
LM4811MMX/NOPB
LM4671ITLX/NOPB
PAM8603MNHR
LM4809MMX/NOPB
LM4809MM/NOPB
TPA311DGNR
BD5468GUL-E2
TPA6111A2DGNR
LM4990ITLX/NOPB
LM4890MX/NOPB
LM4991MAX/NOPB
LM4990MM/NOPB
TS4962MEIKJT
TPA3136AD2PWPR
MAX98304DEWL+T
MAX9716ETA+T
MAX9820ETB+T
MAX97200AEWC+T
LM4951ASD/NOPB
BD5469GUL-E2
LM4910MM/NOPB
BH3548F-E2
LM4995SD/NOPB
MAX97220AETE+T
ISL99201IRTBZ-TK
ISL99201IRTDZ-TK
BD28623MUV-E2
LM4890MMX/NOPB
LM4906MM/NOPB
TDA7491MV13TR
TPA741DGNR
PAM8320RDR
LM4916MM/NOPB
BD5461GUL-E2
TPA3137D2PWPR
LM4853MM/NOPB
BD7830NUV-TR
TPA152DR
PAM8006ATR
DRV601RTJR
MAX98502EWE+T
TPA3111D1QPWPRQ1
BD5632NUX-TR
BD5638NUX-TR
BD5634NUX-TR
TAS5722LRSMR
TPA2001D1PWR
LM4865MM/NOPB
LM48100QMHX/NOPB
TLV320DAC3203IRGER
MAX98357BEWL+T
TPA3117D2RHBR
LM48511SQX/NOPB
TFA9891UK/N1AZ
MAX9719AETE+T
MAX9768ETG+T
MAX9737ETG+T
TFA9892AUK/N1BZ
TPA3112D1QPWPRQ1
TDA749213TR
MAX9730ETI+T
TAS5711PHPR
MAX98400AETX+T
TDA7391PDUTR
LM4838MTEX/NOPB
TDA7492ETR
TPA6011A4PWPR
MAX9736AETJ+T
TAS5733LDCAR
TPA3244DDWR
LM49450SQ/NOPB
TAS5719PHPR
TPA3245DDVR
TAS5766MRMTT
TDF8599ATH/N2CY
TAS5751MDCAR
TPA3250D2DDWR
TDF8541J/N3,112
TPA3007D1PWR
TPA3251D2DDVR
TAS5612LADDVR
SSM3582BCPZR7
TAS5613APHDR
TAS5613ADKDR
TAS5630BPHDR
TAS5631BDKDR
TAS5412TPHDRQ1
TDF8599CTH/N1,118
IS31AP4991A-GRLS2-TR
IS31AP4996-GRLS2-TR
IS31AP2005-DLS2-TR
IS31AP4066D-QFLS2-TR
IS31AP2031-QFLS2-TR
IS31AP4088D-QFLS2-TR
IS31AP2110-ZLS2-TR
IR4321MTRPBF
IR4322MTRPBF
IRS2093MTRPBF
IRS2052MTRPBF
TAS5720MRSMT
MAX98400AETX+
SSM2305RMZ-R2
MAX9722AEUE+
MAX9759ETE+
TPA2001D1PW
LM4865M/NOPB
E-TDA7379
E-TDA7377
TDA7294V
MAX9704ETJ+
TPA311D
TPA6111A2D
MAX9700AEUB+
LM4889MA/NOPB
LM4991MA/NOPB
MAX9711ETC+
MAX9718AEUB+
TPA3113D2PWP
DRV612PW
TDA7496
MAX9723DETE+
LM48100QMH/NOPB
MAX9715ETE+
TPA2000D1PW
TPA3126D2DAD
TPA3245DDV
TPA3123D2PWP
TPA2034D1YZFT
TPA6132A2RTET
TPA4411RTJT
TPA6203A1DRB
TPA6138A2PW
TPA711DGN
MAX9700DEUB+
TPA6204A1DRB
MAX9728AEUD+
TPA311DGN
MAX4411ETP+
TPA6111A2DGN
TPA3136AD2PWP
TAS2560YFFT
MAX4409ETP+
IS31AP4833-TQLS2
MAX9710ETP+
TPA2008D2PWP
TPA2000D2PWP
TPA0253DGQ
TPA6112A2DGQ
MAX9719AETE+
IS31AP2111-ZLS1
DRV603PW
IS31AP2121-LQLS1
LM4940TS/NOPB
MAX9792AETI+
TAS5760MDDCA
TAS5766MDCA
TAS5733LDCA
TAS5710PHP
TAS5631BPHD
LM4879SD/NOPB
LM4665ITL/NOPB
TPA2038D1YFFT
LM4667ITL/NOPB
TPA6136A2YFFT
TPA2035D1YZFT
MP1720DH-3-LF-P
TPA6141A2YFFT
TPA6166A2YFFT
LM48312TLE/NOPB
TPA6211A1DRB
TPA6135A2RTET
TPA6139A2PW
TPA4411YZHT
TPA6140A2YFFT
TPA6100A2D
TPA721D
TPA6110A2DGN
TPA122D
TPA6102A2D
TPA122DGN
TPA6100A2DGK
TPA3136D2PWP
TPA721DGN
TPA6102A2DGK
TPA741DGN
MAX9718DEUB+
TPA3137D2PWP
TPA2001D2PWP
TPA2000D2PW
TPA3144D2PWP
DRV602PW
TPA6017A2PWP
TPA102DGN
TDA7265A
TPA0172PWP
TAS5630BPHD
TS482IST
TS482IDT
PAM8304ASR
NCP2820FCT2G
TPA2010D1YZFR
LM4902MM/NOPB
PAM8603MDER
MP1720DH-216-LF-P
MAX9700BEUB+T
MP1720DH-12-LF-P
ISL99201IRTAZ-TK
TPA6133A2RTJT
TFA9896UK/N1Z
TPA3144D2PWPR
TDA7491LP13TR
LM4674SQ/NOPB
TS4621EIJT
PAM8610TR
SSM2375CBZ-REEL7
TDA7491HV13TR
DRV603PWR
MAX9710ETP+T
DRV601RTJT
TAS5722LRSMT
TLV320DAC3203IRGET
MAX9722AETE+T
TPA2000D1PWR
SSM3302ACPZ-R7
IS31AP4912-UTLS2-TR
IR4301MTRPBF
LM4875M/NOPB
TS4990IQT
TFA9882UK/N2Z
TPA3255DDV
PAM8014AZR
LM4941SDX/NOPB
ISL99201IRTCZ-TK
TPA2031D1YZFT
MAX9700BEUB+
MAX4295ESE+
MAX9791BETI+
TPA3121D2PWP
MAX9741ETN+D
TAS5612LADDV
TAS5630BDKD
TS2007EIJT
TS4990EIJT
TPA2032D1YZFT
LM4923MM/NOPB
BM28720MUV-E2
TPA112D
LM48821TL/NOPB
TPA3126D2DADR
LM4947TL/NOPB
TAS5760LDAPR
TPA2054D4YZKT
TAS5760MDAPR
A22H165J
TS4984IQT
MAX9700AETB+

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