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參數(shù)資料
| 型號(hào)： | CS8421-CNZ |
| 廠商： | Cirrus Logic Inc |
| 文件頁(yè)數(shù)： | 8/17頁(yè) |
| 文件大小： | 0K |
| 描述： | IC SAMPLE RATE CONVERTER 20QFN |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 類型： | 采樣率轉(zhuǎn)換器 |
| 應(yīng)用： | 數(shù)字音頻 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-QFN |
| 供應(yīng)商設(shè)備封裝： | 20-QFN 裸露焊盤(pán)（5x5） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 759 (CN2011-ZH PDF) |
| 配用： | 598-1018-ND - BOARD EVAL FOR CS8421 |
| 其它名稱： | 598-1730 |
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DS641F6
CS8421
4. APPLICATIONS
The CS8421 is a 32-bit, high-performance, monolithic CMOS stereo asynchronous sample-rate converter.
The digital audio data is input and output through configurable 3-wire serial ports. The digital audio input/output ports
offer Left-Justified, Right-Justified, and IS serial audio formats. The CS8421 also supports a TDM Mode which al-
lows multiple channels of digital audio data on one serial line. A Bypass Mode allows the data to be passed directly
to the output port without sample rate conversion.
The CS8421 does not require a control port interface, helping to speed design time by not requiring the user to de-
velop software to configure the part. Pins that are sensed after reset allow the part to be configured. See “Reset,
Target applications include digital recording systems (DVD-R/RW, CD-R/RW, PVR, DAT, MD, and VTR), digital mix-
ing consoles, high quality D/A, effects processors and computer audio systems.
4.1
Three-wire Serial Input/Output Audio Port
A 3-wire serial audio input/output port is provided. The interface format should be chosen to suit the attached device
through the MS_SEL, SAIF, and SAOF pins. Tables 1, 2, and 3 show the pin functions and their corresponding set-
tings. The following parameters are adjustable:
Master or Slave
Master clock (MCLK) frequencies of 128*Fsi/o, 256*Fsi/o, 384*Fsi/o, and 512*Fsi/o (Master Mode)
Audio data resolution of 16-, 20-, 24-, or 32-bits
Left- or Right-Justification of the data relative to left/right clock (LRCK) as well as IS
In Master Mode, the left/right clock and the serial bit clock are outputs, derived from the XTI input pin master clock.
In Slave Mode, the left/right clock and the serial bit clock are inputs and may be asynchronous to the XTI master
clock. The left/right clock should be continuous, but the duty cycle can be less than 50% if enough serial clocks are
present in each phase to clock all of the data bits.
ISCLK is always set to 64*Fsi when the input is set to master. In normal operation, OSCLK is set to 64*Fso. In TDM
Slave Mode, OSCLK must operate at N*64*Fso, where N is the number of CS8421’s connected together. In TDM
Master Mode, OSCLK is set to 256*Fso
For more information about serial audio formats, refer to the Cirrus Logic applications note AN282, “The 2-Channel
Serial Audio Interface: A Tutorial”, available at www.cirrus.com.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS8421-CNZR | 功能描述:音頻 DSP IC 32-Bit 192kHz Asynchron Stereo SRC RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| CS8421-CZZ | 功能描述:音頻 DSP 32-Bit 192kHz Async Stereo SRC RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| CS8421-CZZR | 功能描述:音頻 DSP IC 32-Bit 192kHz Asynchron Stereo SRC RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| CS8421-DZZ | 功能描述:音頻 DSP 32-Bit 192kHz Async Stereo SRC RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| CS8421-DZZR | 功能描述:音頻 DSP IC 32-Bit 192kHz Asynchron Stereo SRC RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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