ES7243 datasheet(5/11 Pages) EVEREST

tên linh kiện	ES7243

Giải thích chi tiết về linh kiện	High Performance Stereo Audio ADC

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nhà sản xuất	EVEREST [Suzhou Everest Semiconductor Co. Ltd.]

Trang chủ	http://www.everest-semi.com/en_index.html

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Everest Semiconductor

Confidential

ES7243

Revision 10.0

March 2019

Latest datasheet: www.everest-semi.com or info@everest-semi.com

Figure 1a I2C Write Timing

Table 2 Read Data from Register in I2C Interface Mode

Chip Address

R/W

Start

0010 0 ̴AD1 ̴AD0

ACK

RAM

ACK

Chip Address

R/W

Data to be read

Start

0010 0 ̴AD1 ̴AD0

ACK

Data

NACK

Stop

Figure 1b I2C Read Timing

5. DIGITAL AUDIO INTERFACE

The device provides many formats of serial audio data interface to the output from the ADC

through LRCK, SCLK and SDOUT pins. These formats are I2S, left justified and DSP/PCM mode.

ADC data is out at SDOUT on the falling edge of SCLK. The relationships of SDOUT (SDATA), SCLK

and LRCK with these formats are shown through Figure 2 to Figure 5. The device supports up to

8-ch of TDM, please refer to user guide for detail description.

n-2 n-1

1 SCLK

MSB

LSB

LEFT CHANNEL

n-2 n-1

1 SCLK

MSB

LSB

RIGHT CHANNEL

SDATA

SCLK

LRCK

Figure 2 I2S Serial Audio Data Format Up To 24-bit

STOP

ACK

Write ACK

Chip Addr

START

bit 1 to 7

bit 1 to 8

Reg Addr

bit 1 to 8

Write Data

CCLK

CDATA

STOP

ACK

Write ACK

Chip Addr

START

bit 1 to 7

bit 1 to 8

Reg Addr

bit 1 to 8

Read Data

START

Read ACK

Chip Addr

bit 1 to 7

NO ACK

CCLK

CDATA

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