ES9038Q2M datasheet(6/65 Pages) ESS

6 / 65 page

CONFIDENTIAL Rev. 1.3

July 17, 2019

ES9038Q2M Datasheet

ESS TECHNOLOGY, INC. 237 South Hillview Drive, Milpitas, CA 95035, USA Tel (408) 643-

8800 • Fax (408) 643-8801

System Clock and Audio Inputs

Sampling Rate Notations

Mode

FSR

raw sample rate at

audio interface

sample rate for filter

specification

DSD

DATA_CLK

FSR / 64

DoP

Frame Clock Rate

FSR / 4

Serial (PCM) Normal Mode

Frame Clock Rate

FSR

Serial (PCM) OSF Bypass Mode

Frame Clock Rate

FSR / 8

SPDIF

SPDIF Audio Rate

FSR

System Clock (XI) and Audio Master Clock (MCLK)

The system clock (XI) can be generated with a crystal using the built-in oscillator or supplied externally.

The maximum XI frequency is 100MHz as specified in ANALOG PERFORMANCE and XI Timing.

The audio master clock (MCLK) is divided down from XI via clk_gear in Register 0: System Registers.

The minimum MCLK frequency for a given raw sample rate FSR is specified in ANALOG PERFORMANCE.

The minimum MCLK frequency for a given I2C clock is specified in the table under I2C Timing Table.

PCM Pin Connections

Pin Name

Description

DATA1

Frame clock

DATA2

2-channel PCM serial data

DATA_CLK

Bit clock for PCM audio format

Note: DATA_CLK frequency must be (2 x serial_length) x FSR.

serial_length can be set in Register 1: Input selection.

SPDIF Pin Connections

Pin Name

Description

GPIO2~1

SPDIF input 5~4

DATA2~1

SPDIF input 3~2

DATA_CLK

SPDIF input 1

An SPDIF source multiplexer allows for up to 5 SPDIF sources to be connected to the data and GPIO pins selectable via

automatically selected if auto_select in Register 1: Input selection is set to a mode allowing automatic SPDIF selection.

DSD Pin Connections

Pin Name

Description

DATA2~1

2-channel DSD data input

DATA_CLK

Bit clock for DSD data input

Note: DATA_CLK frequency must be FSR.

ES9038Q2M Datasheet(PDF) 6 Page - ESS Technology,Inc

ES9038Q2M Datasheet(HTML) 6 Page - ESS Technology,Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Datasheet Download

Link URL