參數(shù)資料
型號(hào)： EP7212
廠商： Cirrus Logic, Inc.
英文描述： HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
中文描述： 高性能，低功耗系統(tǒng)與LCD控制器和數(shù)字音頻接口（DAI芯片）
文件頁(yè)數(shù)： 42/136頁(yè)
文件大小： 2289K
代理商： EP7212
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EP7212
42
DS474PP1
side of an audio sample. When LRCK transitions
from low to high the next 16-bits make up the right
side of an audio sample.
3.13.2.3
DAI Signals
MCLK
oversampled clock. Used as an in-
put to the EP7212 for generating the
DAI timing. This signal is also usu-
ally used as an input to a DAC/ADC
as an oversampled clock. This sig-
nal is fixed at 256 times the audio
sample frequency.
SCLK
bit clock. Used as the bit clock input
into the DAC/ADC. This signal is
fixed at 128 times the audio sample
frequency.
LRCK
Frame sync. Used as a frame syn-
chronization
input
DAC/ADC. This signal is fixed at
the audio sample frequency. This
signal is clocked out on the negative
going edge of SCLK.
to
the
SDOUT
Digital audio data out. Used for
sending playback data to a DAC.
This signal is clocked out on the
negative going edge of the SCLK
output.
SDIN
Digital audio input. Used for receiv-
ing record data from an ADC. This
signal is latched by the EP7212 on
the positive going edge of SCLK.
ADC Interface — Master Mode Only
SSI1 (Synchronous Serial Interface)
3.13.3
The first synchronous serial interface allows inter-
facing to the following peripheral devices:
In the default mode, the device is compatible
with the MAXIM MAX148/9 in external clock
mode. Similar SPI- or Microwire-compatible
devices can be connected directly to the
EP7212.
In the extended mode and with negative-edge
triggering selected (the ADCCON and ADC-
CKNSEN bits are set, respectively, in the
SYSCON3 register), this device can be inter-
faced to Analog Devices’ AD7811/12 chip us-
ing nADCCS as a common RFS/TFS line.
Other features of the devices, including power
management, can be utilized by software and
the use of the GPIO pins.
The clock output frequency is programmable and
only active during data transmissions to save pow-
er. There are four output frequencies selectable,
which will be slightly different depending whether
MSB
LRCK
SCLK
Left Channel
Right Channel
SDATA
+3 +2 +1
+5 +4
-1 -2 -3 -4 -5
+3 +2 +1
+5 +4
-1 -2 -3 -4
SDATAI
+3 +2 +1
+5 +4
-1 -2 -3 -4 -5
+3 +2 +1
+5 +4
-1 -2 -3 -4
O
128 SCLKs
MSB
MSB
MSB
LSB
LSB
LSB
LSB
Figure 8. EP7212 Rev C - Digital Audio Interface Timing – MSB / Left Justified format
相關(guān)PDF資料
PDF描述
EP7212-CB-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7309 HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE
EP7309-CB-C CONN MODULAR JACK 8-8 R/A UNSHLD
EP7309-CR-C HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EP7212-CB-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-D 制造商:Rochester Electronics LLC 功能描述:- Bulk
EP7230 功能描述:電氣外殼配件 E-PANEL FITS 72 X 30 RoHS:否 制造商:Hammond Manufacturing 產(chǎn)品:Rack Accessories 類型: 面板寬度: 面板高度: 外部寬度: 外部高度: 外部深度: 顏色:Black
EP7236 功能描述:電氣外殼配件 E-PANEL FITS 72 X 36 RoHS:否 制造商:Hammond Manufacturing 產(chǎn)品:Rack Accessories 類型: 面板寬度: 面板高度: 外部寬度: 外部高度: 外部深度: 顏色:Black
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