ES9018 datasheet(9/54 Pages) ESS

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ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 WWW.ESSTECH.COM

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ES9018S Product Datasheet

Functional Descriptions

Notations for Sampling Rates

Mode

DSD

DATA_CLK / 64

DSD data rate

Serial (PCM) Normal Mode

DATA_CLK / 64

Serial (PCM) OSF Bypass Mode

DATA_CLK / 8

SPDIF

SPDIF Sampling Rate

Table 2 - Notations for Sampling Rates

PCM, SPDIF and DSD Pin Connections

The following tables show how the pins are used for PCM and DSD audio formats.

PCM Audio Format

Notes:

•

XI clock (MCLK) must be > 192 x Fs (for Fs

 200kHz) when using PCM input (normal mode)

•

XI clock (MCLK) must be > 256 x Fs (200kHz < Fs

 384kHz) when using PCM input (normal mode)

•

XI clock (MCLK) must be > 24 x Fs (Fs

 1.536MHz) when using PCM input (OSF bypass mode)

Pin Name

Description

DATA1

Frame clock

DATA[2:5]

8-channel PCM serial data

DATA_CLK

Bit clock for PCM audio format

Table 3 - PCM pin connections

SPDIF Audio Formant

Note: XI clock (MCLK) must be > 386 x Fs (for Fs

 200kHz) when using SPDIF input

Pin Name

Description

DATA[1:8]

Up to 8 SPDIF inputs can be connected to an 8-to-1 mux internal to

SABRE32 Reference, selectable via register SPDIF Source

Table 4 - SPDIF pin connections

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