PMODI2S_RM [ETC]
PmodII2s Refference Manuall; PmodII2s REFFERENCE手册册
| 型号： | PMODI2S_RM |
| 厂家： | 
ETC |
| 描述： | PmodII2s Refference Manuall |
| 文件： | 总1页 (文件大小：211K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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 PmodTM interface
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
Copyright Digilent, Inc.
1 pages
Doc: 502-191
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