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參數(shù)資料
| 型號(hào)： | CDB4270 |
| 廠商： | Cirrus Logic, Inc. |
| 元件分類： | Codec |
| 英文描述： | 24-Bit, 192 kHz Stereo Audio CODEC |
| 中文描述： | 24位192千赫立體聲音頻CODEC |
| 文件頁數(shù)： | 22/48頁 |
| 文件大?。?/td> | 730K |
| 代理商： | CDB4270 |
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22
DS686A1
CS4270
5. APPLICATIONS
5.1
Stand-Alone Mode
5.1.1 Recommended Power-Up Sequence
Reliable power-up can be accomplished by keeping the device in reset until the power supplies, clocks
and configuration pins are stable. It is also recommended that reset be enabled if the analog or digital
supplies drop below the minimum specified operating voltages to prevent power glitch related issues.
5.1.2 Master/Slave Mode
The CS4270 supports operation in either Master Mode or Slave Mode.
In Master Mode, LRCK and SCLK are outputs and are synchronously generated on-chip. LRCK is equal
to Fs and SCLK is equal to 64x Fs.
In Slave Mode, LRCK and SCLK are inputs, requiring external generation that is synchronous to MCLK.
It is recommended that SCLK be 48x or 64x Fs to maximize system performance.
In Stand-Alone Mode, the CS4270 will enter Slave Mode when SDOUT (M/S) is pulled low through a 47
k
resistor. Master Mode may be accessed by placing a 47 k
pull-up to VD on the SDOUT (M/S) pin.
Configuration of clock ratios in each of these modes is outlined in
Table 2
.
5.1.3 System Clocking
The CS4270 will operate at sampling frequencies from 4 kHz to 216 kHz. This range is divided into three
speed modes as shown in
Table 1
.
Mode
Sampling Frequency
4-54 kHz
50-108 kHz
100-216 kHz
Single-Speed
Double-Speed
Quad-Speed
Table 1. Speed Modes
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相關(guān)代理商/技術(shù)參數(shù) |
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| CDB4271 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd CS4271 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4272 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd CS4272 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4299 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd AC’97 CODEC w/SRC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB42L50 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low Voltage, Stereo CODEC with headphone Amp |
| CDB42L51 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd Low-volt CODEC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
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