max9860 Maxim Integrated Products, Inc., max9860 Datasheet - Page 13

• Manufacturer Part Number: max9860
• Description: 16-bit Mono Audio Voice Codec
• Manufacturer: Maxim Integrated Products, Inc.

PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
—
1
2
3
4
5
6
7
8
9
MICBIAS
MICGND
DVDDIO
SDOUT
LRCLK
MICRN
MICRP
MICLN
NAME
AGND
DGND
MICLP
OUTN
DVDD
MCLK
PREG
AVDD
OUTP
BCLK
SDIN
REG
SDA
SCL
REF
IRQ
EP
______________________________________________________________________________________
Microphone Bias. +1.55V microphone bias for internal and/or external microphone. An external resistor from
2.2kΩ to 470Ω should be used to set the microphone current. Bypass to MICGND with a 1µF capacitor.
Internal Bias. PREG/2 voltage reference. Bypass to AGND with a 1µF capacitor (+0.8V).
Positive Internal Regulated Supply. Bypass to AGND with a 1µF capacitor (+1.6V).
Converter Reference (1.23V). Bypass to AGND with a 2.2µF capacitor.
Analog Ground
Analog Power Supply. Bypass to AGND with 10µF and 0.1µF capacitors.
Positive Headphone Output
Negative Headphone Output
I
I
Digital Interface Power Supply. Supply for digital audio interface. Bypass to DGND with a 1µF capacitor.
Digital Ground
Digital Core Power Supply. Bypass to DGND with a 1µF capacitor.
Master Clock Input
Serial Audio Interface ADC Data Output
Serial Audio Interface DAC Data Input
Serial Audio Interface Left/Right Clock
Serial Audio Interface Bit Clock
Interrupt Request. IRQ is an active-low open drain output. Pull up to DVDDIO with a 10kΩ resistor.
Negative Right Microphone Input. AC-couple to low-side of microphone or connect to negative signal.
AC-couple to ground for single-ended operation.
Positive Right Microphone Input. AC-couple to high-side of microphone or connect to positive signal.
AC-couple the signal for single-ended operation.
Negative Left Microphone Input. AC-couple to low-side of microphone or connect to negative signal.
AC-couple to ground for single-ended operation.
Positive Left Microphone Input. AC-couple to high-side of microphone or connect to positive signal.
AC-couple the signal for single-ended operation.
MICBIAS Ground. Connect to AGND.
Exposed Pad. Connect to AGND.
2
2
C Serial-Data Input/Output
C Serial-Data Clock
16-Bit Mono Audio Voice Codec
FUNCTION
Pin Description
13