INMP522

Figure 12. Stereo PDM Microphone Connection to Codec

(PCB) layout allows.

Do not use a pull-up or pull-down resistor on the PDM data signal line because the resistor can pull the signal to an incorrect state

during the period that the signal line is tristated.

CLOCK OUTPUT

CODEC

0.1µF

1.8V TO 3.3V

GND

L/R SELECT

DATA

INMP522

CLK

VDD

DATA INPUT

0.1µF

1.8V TO 3.3V

GND

L/R SELECT

DATA

INMP522

CLK

VDD

Page 13 of 21

Document Number: DS-INMP522-00

Revision: 1.1

Rev Date: 02/06/2014