Datasheet > PMODI2S_RM

PMODI2S_RM

更新时间： 2024-11-25 12:46:51

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PmodII2s Refference Manuall

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PMODI2S_RM 数据手册

PmodI²s Reference Manual

1300 NE Henley Court, Suite 3

Pullman, WA 99163

(509) 334 6306 Voice | (509) 334 6300 Fax

Revision: December 21, 2010

Overview

The Digilent PmodI²S is a peripheral module

that provides a D/A converter allowing for high

quality stereo sound from a digital source. This

module provides an easy interface for

converting digital samples into an analog

signal with a wide arrange of sample rates and

a large dynamic range.

Features include:

•

Cirrus Logic CS4344 Stereo D/A

converter

•

1/8-inch stereo headphone jack

6-pin header Pmod^TMinterface

connector

•

3V-5V operating voltage

Small form factor (.8” x 1.15”)

Functional Description

Power Supply

The PmodI²S is designed to work with either

Digilent programmable logic or Digilent

embedded control system boards that have 6

or 12-pin header connectors into which the

PmodI²S will connect directly.

The Digilent PmodI²S contains a Cirrus Logic

CS4344 stereo D/A converter that supports all

major audio data interface formats and allows

16 to 24 bits of audio data at standard audio

sample rates, including 48, 96 and 192 Khz.

The PmodI²S requires a 3V-5V supply voltage.

This power supply voltage (3.3V) is available

on all Digilent system boards and is provided

as part of the Pmod interface. Digilent system

boards that provide Pmod interface connectors

allow jumper selection of the power supply

voltage being provided to the Pmod. Ensure

that the system board is jumpered to provide

3.3V to the module before applying power to

the board.

Interface

The PmodI²S runs off a master clock (MCLK)

input that can be set from 500khz to 50Mhz.

Audio data is supplied to the serial data input

(SDIN) where it is clocked in by an optional

serial clock (SCLK). If the SCLK is left de-

asserted, the CS4344 will automatically set the

sample rate based on the MCLK and LRCK.

Either way the LRCK will control which channel

is currently being read by the CS4344.

For more information about the operational

features and timing diagrams of the Cirrus

CS4344 please refer to the CS4344 Data

Sheet

1 pages

Doc: 502-191

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