DA7218 datasheet(11/198 Pages) RENESAS

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DA7218

Ultra-Low Power Stereo Codec

Datasheet

Revision 3.4

24-Dec-2021

CFR0011-120-00

11 of 197

Pin No.

Pin Name

Type (Table 2)

Description

Supplies

VDD

Main analog supply

A13

VDD_MIC

Supply for MICBIAS LDO

VDD_IO

Supply for digital interface and LDO

B10

GND

Ground reference

GND_CP

Ground reference

Table 2: Pin Type Definition

Pin Type

Description

Pin Type

Description

Digital Input

Analog Input

Digital Output

Analog Output

DIO

Digital Input/Output

AIO

Analog Input/Output

DIOD

Digital Input/Output open drain

SPU

Switchable pull-up resistor

Fixed pull-up resistor

SPD

Switchable pull-down resistor

Fixed pull-down resistor

4.1

Input Pins

4.1.1

MIC1_P (DMIC1CLK)

MIC1_P is the positive differential input for the first analog microphone channel. It can be used as a

single-ended input (see Figure 8).

Alternatively for digital microphones, MIC1_P is used to provide a clock output.

4.1.2

MIC1_N (DMIC1IN)

MIC1_N is the negative differential input for the first analog microphone channel. It can be used as a

single-ended input.

Alternatively for digital microphones and active noise cancelling (ANC) applications, MIC1_N is used

as a pulse density modulated (PDM) data input.

4.1.3

MIC2_P (DMIC2CLK)

MIC2_P is the positive differential input for the second analog microphone channel. It can be used as

a single-ended input.

Alternatively for digital microphones, MIC2_P is used to provide a clock output.

4.1.4

MIC2_N (DMIC2IN)

MIC2_N is the negative differential input for the second analog microphone channel. It can be used

as a single-ended input.

Alternatively for digital microphones and ANC applications, MIC2_N is used as a PDM data input.

4.1.5

MCLK

MCLK is the master clock input pin. It is used as the main system clock either directly or via the PLL.

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