參數(shù)資料
型號： CDB42448
廠商： Cirrus Logic, Inc.
元件分類： Codec
英文描述： 108 dB, 192 kHz 6-in, 8-out CODEC
中文描述： 108分貝192千赫6 - 8 -出編解碼器
文件頁數(shù)： 32/70頁
文件大?。?/td> 1146K
代理商： CDB42448
32
DS648PP2
4.4
The CODEC (ADC & DAC) serial audio interface ports operate both as a slave or master. The serial ports
accept externally generated clocks in slave mode and will generate synchronous clocks derived from an
input master clock in master mode. In the TDM format the ADC and DAC serial ports will only operate as
a slave. In OLM #2 the serial ports will accept or output a 256Fs SCLK. See the registers “DAC Functional
Mode (DAC_FM[1:0])” on page 46 and “ADC Functional Mode (ADC_FM[1:0])” on page 46 for setting up
master/slave mode.
The CODEC requires external generation of the master clock (MCLK). The frequency of this clock must
be an integer multiple of, and synchronous with, the system sample rate, Fs.
The required integer ratios, along with some common frequencies, are illustrated in tables 2 to 4. The fre-
quency range of MCLK must be specified using the MFREQ bits in register “MCLK Frequency
(MFreq[2:0])” on page 46.
System Clocking
4.5
The ADC and DAC serial ports support the I2S, Left-Justified, Right-Justified, One-Line Mode (OLM) and
TDM digital interface formats with varying bit depths from 16 to 32 as shown in Figures 15-20. Data is
clocked out of the ADC on the falling edge of SCLK and clocked into the DAC on the rising edge. The
serial bit clock, DAC_SCLK and/or ADC_SCLK, must be synchronously derived from the master clock and
be equal to 256x, 128x, 64x, 48x or 32x Fs depending on the interface format selected and desired speed
mode. One Line Mode #1 and One Line Mode #2 will operate in master or slave mode. Refer to Table 5
for required clock ratios. The SCLK to sample rate (LRCK) ratios are shown in Tables 5 - 8.
CODEC Digital Interface Formats
Sample Rate
(kHz)
32
44.1
48
MCLK (MHz)
512x
16.3840
22.5792
24.5760
256x
8.1920
11.2896
12.2880
Table 2. Single-Speed Mode Common Frequencies
384x
12.2880
16.9344
18.4320
768x
24.5760
33.8688
36.8640
1024x
32.7680
45.1584
49.1520
Sample Rate
(kHz)
64
88.2
96
MCLK (MHz)
256x
16.3840
22.5792
24.5760
128x
8.1920
11.2896
12.2880
Table 3. Double-Speed Mode Common Frequencies
192x
12.2880
16.9344
18.4320
384x
24.5760
33.8688
36.8640
512x
32.7680
45.1584
49.1520
Sample Rate
(kHz)
176.4
192
MCLK (MHz)
128x
22.5792
24.5760
64x
96x
192x
33.8688
36.8640
256x
45.1584
49.1520
11.2896
12.2880
Table 4. Quad-Speed Mode Common Frequencies
16.9344
18.4320
相關(guān)PDF資料
PDF描述
CDB4245 105 dB, 24-Bit, 192 kHz Streo Sudio CODEC
CDB42518 110 dB, 192 kHz 6-Ch Codec with S/PDIF Receiver
CDB42528 114 dB, 192 kHz 6-Ch Codec with S/PDIF Receiver
CDB4270 24-Bit, 192 kHz Stereo Audio CODEC
CDB4271 24-Bit, 192 kHz Stereo Audio CODEC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDB4245 功能描述:音頻 IC 開發(fā)工具 Eval Bd 192kHz CODEC w/PGA & Input Mux RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
CDB42518 功能描述:音頻 IC 開發(fā)工具 Eval Bd RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
CDB42528 功能描述:音頻 IC 開發(fā)工具 Eval Bd RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
CDB4265 功能描述:音頻 IC 開發(fā)工具 Eval Bd 192kHz CODEC w/PGA & Input Mux RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
CDB4270 功能描述:音頻 IC 開發(fā)工具 Eval Bd 105dB 192kHz CODEC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
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