Creating MAX98357A Schematic

flux

A solid generic choice is:
Recommended MPN

Table

UsePart
100 kΩ, 0603, general-purposeCRCW0603100KJNEAC
From the datasheet/library entry for CRCW0603100KJNEAC:
  • Resistance: 100 kΩ
  • Package: 0603 / 1608M
  • Power rating at 70 C: 0.10 W
  • Tolerance code J: ±5%
Better tolerance option

Table

UsePart
100 kΩ, 0603, tighter toleranceRMCF0603FG100K
From the datasheet/library entry for RMCF0603FG100K:
  • Resistance: 100 kΩ
  • Package: 0603
  • Power rating at 70 C: 0.1 W
  • Tolerance: 1%
If you want the safest default for most designs, I’d use RMCF0603FG100K. If you just need a basic pull-up/pull-down, CRCW0603100KJNEAC is fine too.
If you want, I can also help pick the exact MPN for your current project resistors R1 and R2 based on whether they’re pull resistors, bias resistors, or precision-setting parts.
Check R1 role
Find cheaper 1%
Verify resistor ratings
Prefer pull-up default
conn1
SD
LR
CK
R1
Resistance
100KΩ
VDD
LR
CK
WS
WS
MICROPHONE
R2
Resistance
100KΩ
C1
Capacitance
100nF
VDD
SD

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Doc 1
Microphone that has INMP441

Documents

Assets

dxf

face.DXF

face
svg

iZxVj01.svg

iZxVj01
dxf

Part1.DXF

microphone outline
svg

mic head.svg

mic head
svg

KXk3701.svg

KXk3701Default

Microphone

Microphone thumbnail
Welcome to your new project. Imagine what you can build here.

Properties

flowchart TD A[I2S Audio Source MCU] -->|BCLK LRCLK DIN SD_MODE| B[MAX98357A Class D DAC Amp] C[VDD 2.5V to 5.5V] --> B C --> D[Decoupling 10uF + 0.1uF] D --> E[GND] B -->|OUTP OUTN| F[Speaker]

VDD supply range: 2.5 V to 5.5 V

Pricing & Availability

Distributor

Qty 1

Arrow

$0.00–$0.01

Digi-Key

$218.01–$218.20

LCSC

$0.04

Mouser

$0.20

Verical

$0.01–$0.05

Controls