MAX9867 datasheet(39/55 Pages) MAXIM

部件名	MAX9867

功能描述	Ultra-Low Power Stereo Audio Codec

PDF	55 Pages

Scroll/Zoom	100%

制造商	MAXIM [Maxim Integrated Products]

网页	https://www.maximintegrated.com/en.html

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39 / 55 page

Ultra-Low Power Stereo Audio Codec

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BITS

FUNCTION

PALEN/PAREN

Left/Right Microphone Preamplifier Gain

Enables the microphone circuitry and sets the preamplifier gain.

00 = Disabled

01 = 0dB

10 = +20dB

11 = +30dB

Left/Right Microphone Programmable Gain Amplifier

SETTING

GAIN (dB)

SETTING

GAIN (dB)

0x00

+20

0x0B

0x01

+19

0x0C

0x02

+18

0x0D

0x03

+17

0x0E

0x04

+16

0x0F

0x05

+15

0x10

0x06

+14

0x11

0x07

+13

0x12

0x08

+12

0x13

0x09

+10

PGAML/PGAMR

0x0A

+11

0x14

to 0x1F

MICLN

MICLP

MICBIAS

PGA

PREAMP

MICRN

ADC

MICRP

1.5V

0/20/30dB

0dB TO +20dB

VREG

0/20/30dB

PREAMP

MAX9867

ADC

Figure 5. Microphone Input Signal Path

Table 12. Microphone Input Register (continued)

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