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Low power audio design

Design of audio amplifiers: Selection guide for Class-D audio amplifier Page -2

Here below are some of the latest and new class D audio amplifiers.

Parts selection table-2

Manufacturer Name Manufacturer Part Number Output Type
National Semiconductor (Now Texas Instruments) LM4675SD/NOPB 1 channel
National Semiconductor (Now Texas Instruments) LM49251TL/NOPB 1 channel
Maxim Integrated Products MAX97000EWA+T 1 channel
Maxim Integrated Products MAX97001EWP+T 1 channel
Maxim Integrated Products MAX97002EWP+T 1 channel
Maxim Integrated Products MAX9708ETN+D 2 channels
Maxim Integrated Products MAX98400AETX+ 2 channels
Maxim Integrated Products MAX98500EWE+T 1 channel
Analog Devices SSM2517 1 channel
Texas Instruments TAS5414TDKDMQ1 4 channels
Texas Instruments TAS5424TDKDRQ1 4 channels
Texas Instruments TPA2015D1YZHR 1 channel
Texas Instruments TPA2028D1YZFR 1 channel
Texas Instruments TPA2026D2YZHR 2 channels
STMicroelectronics TS4999EIJT 2 channels
Wolfson Microelectronics WM9081GICN/V 2 channels

 

Manufacturer Part Number Output Type Efficiency PSSR (dB) Output power (W)
LM4675SD/NOPB 1 channel 80% 82 2.65
LM49251TL/NOPB 1 channel 77 1.37
MAX97000EWA+T 1 channel 87% 40m
MAX97001EWP+T 1 channel 87% 37m
MAX97002EWP+T 1 channel 87% 37m
MAX9708ETN+D 2 channels 87% 90 21
MAX98400AETX+ 2 channels 90% 67 20
MAX98500EWE+T 1 channel 87% 95 2.2
SSM2517 1 channel 92% 85 2.4
TAS5414TDKDMQ1 4 channels 90 75 28
TAS5424TDKDRQ1 4 channels 90 75 28
TPA2015D1YZHR 1 channel 85 2
TPA2028D1YZFR 1 channel 80 3
TPA2026D2YZHR 2 channels 80 3.2
TS4999EIJT 2 channels 82% 63 2.8
WM9081GICN/V 2 channels 92 2.6

Manufacturer Part Number Load Impedance Operating Temperature Supply Voltage Package
LM4675SD/NOPB 4 ohm 1.4 to 3.6V 8WSON, 9DSBGA
LM49251TL/NOPB 2.7 to 5.5V 30DSBGA
MAX97000EWA+T 16 ohm -40 to 85 C 2.7 to 5.5V WLP;25 pin;4.7 mm˛
MAX97001EWP+T 16 ohm -40 to 85 C 2.7 to 5.5V WLP;20 pin
MAX97002EWP+T 16 ohm -40 to 85 C 2.7 to 5.5V WLP;20 pin
MAX9708ETN+D 8 ohm -40 to 85 C 10 to 18V TQFN;56 pin;65.6 mm˛
MAX98400AETX+ 8 ohm -40 to 85 C 8 to 28V TQFN;36 pin;37.2 mm˛
MAX98500EWE+T 8 ohm -40 to 85 C 2.5 to 5.5V WLP;16 pin;4.5 mm˛
SSM2517 4 ohm -40 C to 85 C 2.5 to 5.5V 9 ball WLCSP (1.46x1.46)
TAS5414TDKDMQ1 4 ohm -40 to 105 C 6.5 to 24V 36-Pin PSOP3 (DKD) Power SOP Package
TAS5424TDKDRQ1 4 ohm -40 to 105 C 6.5 to 24V 44-Pin PSOP3 (DKD) Power SOP Package
TPA2015D1YZHR 8 ohm -40 C to 85 C 2.3 to 5.2V 1.954 mm × 1.954 mm 16-ball WCSP Package
TPA2028D1YZFR 4 ohm -40 C to 85 C 2.5 to 5.5V 1,63 mm × 1,63 mm Nano-Free WCSP (YZF)
TPA2026D2YZHR 4 ohm -40 C to 85 C 2.5 to 5.5V 2,2 mm × 2,2 mm Nano-Free™ WCSP (YZH)
TS4999EIJT 4 ohm -40 C to 85 C 2.4 to 5.5V Flip chip 18-bump lead-free package
WM9081GICN/V 4 ohm -40 C to 85 C 2.7 to 5.5V 28 lead 4x4 COL package (0.45mm lead pitch)

 

Note: The data given in this is only a reference for the clarification of data and specs consult the manufacturer of the part.

 


 

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