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參數(shù)資料
| 型號： | PCM4104 |
| 英文描述： | High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter |
| 中文描述： | 高性能24位，216kHz的采樣，四通道音頻數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 19/36頁 |
| 文件大?。?/td> | 486K |
| 代理商： | PCM4104 |
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SBAS291C AUGUST 2003 REVISED DECEMBER 2004
www.ti.com
19
AUDIO SERIAL PORT
The audio serial port provides a common interface to
digital signal processors, digital interface receivers (AES3,
S/PDIF), and other digital audio devices. The port
operates as a slave to the processor, receiver, or other
clock generation circuitry. Figure 9 illustrates a typical
audio serial port connection to a processor or receiver. The
audio serial port is comprised of four signal pins: BCK (pin
15), LRCK (pin 16), DATA0 (pin 17), and DATA1 (pin 18).
LRCK
BCK
DATA0
DATA1
FSX
CLKX
DX0
DX1
System Clock
PCM4104
DSP
SCKI
Figure 9. Audio Serial Port Connections for Left
Justified, Right Justified, and I
2
S Formats.
The LRCK pin functions as either the left/right word clock
or the frame synchronization clock, depending upon the
data format selected. The LRCK frequency is equal to the
input sampling frequency (44.1kHz, 48kHz, 96kHz, etc.).
The BCK pin functions as the serial data clock input. This
input is referred to as the bit clock. The bit clock runs at an
integer multiple of the input sampling frequency. Typical
multiples include 32, 48, 64, 96, 128, 192, and 256,
depending upon the data format, word length, and system
clock frequency selected.
The DATA0 and DATA1 pins are the audio data inputs.
When using Left Justified, Right Justified, or I
2
S data
formats, the DATA0 pin carries the audio data for channels
1 and 2, while the DATA1 pin carries the audio data for
channels 3 and 4. When using TDM data formats, DATA0
carries the audio data for all four channels, while the
DATA1 input is ignored.
The audio serial port data formats are shown in Figure 10,
Figure 13, and Figure 14. Data formats are selected by
using the FMT[2:0] bits in Control Register 7 in Software
mode, or by using the FMT0 (pin 25), FMT1 (pin 26), and
FMT2 (pin 27) inputs in Standalone mode. In Software
mode, the user may also select the phase (normal or
inverted) for the LRCK input, as well as the data sampling
edge for the BCK input (either rising or falling edge). The
reset default conditions for the Software mode are normal
phase for LRCK and rising edge data sampling for BCK.
The Left Justified, Right Justified, and I
2
S data formats are
similar to one another, with differences in data justification
and word length. The PCM audio data must be two’s
complement binary, MSB first. Figure 10 provides
illustrations for these data formats.
The TDM formats carry the information for four or eight
channels on a single data line. The DATA0 input (pin 17)
is used as the data input for the TDM formats. The data is
carried in a time division multiplexed fashion; hence, the
TDM
acronym used to describe this format. Figure 12
shows the TDM connection of two PCM4104 devices. The
data for each channel is assigned one of the time slots in
the TDM frame, as shown in Figure 13 and Figure 14. The
subframe assignment for each PCM4104 is determined
by the state of the SUB input (pin 13). When SUB is forced
low, the device is assigned to sub-frame 0. When SUB is
forced high, the device is assigned to sub-frame 1.
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| PCM4104PFBR | High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter |
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| PCM58J | Precision, 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
| PCM58K | Precision, 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM4104-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:High-Performance, 24-Bit, 216-kHz Sampling, Four-Channel Audio Digital-to-Analog Converter |
| PCM4104EVM | 功能描述:音頻 IC 開發(fā)工具 PCM4104 Eval Mod 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 |
| PCM4104IPFBREP | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Hi-Perf 24B 216 kHz Sampling 4-Ch Audio RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM4104PFBR | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC High-End 24-Bit 192kHz 4-Ch D-S DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM4104PFBRG4 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC High-End 24-Bit 192kHz 4-Ch D-S DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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