AC108 datasheet(1/3 Pages) XPOWER

Part #	AC108

Description	Highly Integrated Quad-channel ADC

PDF	3 Pages

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Manufacturer	XPOWER [Shenzhen X-Powers Technology Co ., Ltd]

Direct Link	http://www.x-powers.com/en.php/Index/index

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AC108

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Revision 0.7

1

Highly Integrated Quad-channel ADC with I2S/TDM

Output Transition for Multi-microphone Array

FEATURES

 108 dB dynamic range (A-weighted) @ 0 dB

boost gain

 –90 dB THD+N @ 0 dB boost gain

 4 programmable boost amplifiers with 0dB to

45dB in 3dB step

 ADC sample rates supported: 8kHz,12kHz,16kHz,

22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz,96kHz

 Analog mixer and digital mixer in record data

path

 Four fully differential microphone inputs:

MIC1P/N ~MIC4P/N

- Can be configured as pseudo differential,

single-ended mode

- Can be configured as digital MIC data pin

 Four low noise mic bias outputs:

MIC1_BIAS~MIC4_BIAS

- Programmable bias voltage 1.5V to 4V

 Two DMIC SCLK output@1M~3.25M

 Two I2S data output:

- Can be configured as I2S/PCM format using

1 pins to output 2 channel data of 1 devices.

- Can be configured as I2S/PCM format using 2

pins to output 4 channel data of 1 devices.

- Can be configured as TDM format using 1

pins to output 4 even 16 channel data of 4

devices.

- Can be configured as Encoding format using

1 pins to output 4 even 16 channel data of 4

devices.

 DPLL support a wide input for 6-/12-MHz,

6.144-/12.288-MHz, 5.6448-/11.2896-MHz,

13MHz and 19.2MHz.

 Integrated LDO allowing single 3.3V supply

 <4mA per ADC channel for low power

consumption application

 TWI control interface support from 100 kHz up

to 400 kHz

 48 pin , 6×6 mm2 QFN Package

APPLICATIONS

 Audio Capture in Voice Interactive Product

 Audio Capture in Voice Communication System

DESCRIPTION

AC108 is a highly integrated quad-channel ADC with

I2S/TDM output transition . It's designed for multi-

microphone array in high definition voice capture

and recognition application platforms.

The integrated digital PLL supports a large range of

input/output frequencies, and It can generate

required system clocks from common reference

clock such as 6-/12-MHz, 6.144-/12.288-MHz,

5.6448-/11.2896-MHz, 13MHz and 19.2MHz. The

audio sample 8kHz, 12kHz,16kHz, 22.05kHz, 24kHz,

32kHz, 44.1kHz, 48kHz, 96kHz is supported.

AC108 integrates four synchronized ADCs with

independent programmable mic bias voltage and

mic boost amplifier to deliver valid channel data

that channel crosstalk can be eliminated. The analog

input port MIC1P/N ~MIC4P/N is designed as four

differential microphone pin or single-ended line-in

pin.Two smart digital mic interfaces are supported

to make low jitter clock output and decimation filter

for up to four digital mic. Independent digital voice

controllers are provided in each channel.

AC108 can transit its four channels output data over

two I2S ports by standard I2S or PCM format, also a

single port by TDM format. A new format called

encoding mode can also used to transit four channel

data when the I2S format of AP is normal protocol

types. Furthermore, one to four device can be

combined to transit up to 16 channels output data

by a single TDM line.

The device includes several DSP features such as

high-pass filter, mixer, and volume control. It

includes several DSP features such as high-pass filter,

mixer, and volume control.

It is available in a 48-pin 6mm*6mm QFN package.

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AC108 Datasheet(PDF) 1 Page - Shenzhen X-Powers Technology Co ., Ltd

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