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參數資料
| 型號： | PCM1794ADB |
| 英文描述： | 24-bit,192-khz sampling,advanced segment, audio stereo digital-to-analog converter |
| 中文描述： | 24位,192 - kHz的采樣，先進的部分，立體聲音頻數字模擬轉換器 |
| 文件頁數： | 23/30頁 |
| 文件大?。?/td> | 301K |
| 代理商： | PCM1794ADB |
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SLES117A – AUGUST 2004 – REVISED NOVEMBER 2006
www.ti.com
23
Application for Interfacing With an External Digital Filter
For some applications, it may be desirable to use a programmable digital signal processor as an external digital filter
to perform the interpolation function. The following pin settings enable the external digital filter application mode.
MONO (pin 1) = LOW
CHSL (Pin 2) = HIGH
FMT0 (Pin 11) = HIGH
FMT1 (pin 12) = HIGH
The pins used to provide the serial interface for the external digital filter are shown in the connection diagram of
Figure 27. The word clock (WDCK) must be operated at 8
×
or 4
×
the desired sampling frequency, f
S
.
System Clock (SCK) and Interface Timing
The PCM1794A in an application using an external digital filter requires the synchronization of WDCK and the system
clock. The system clock is phase-free with respect to WDCK. Interface timing among WDCK, BCK, and DATA is
shown in Figure 29.
Audio Format
The PCM1794A in the external digital filter interface mode supports right-justified audio formats including 24-bit audio
data, as shown in Figure 28.
BCK
1/4 fS or 1/8 fS
WDCK
Audio Data Word = 24-Bit
MSB
LSB
16
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
24
23
20
17 18 19
24
21 22 23
DATA
Figure 28. Audio Data Input Format for External Digital Filter (Internal DF Bypass Mode) Application
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PDF描述 |
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| PCM1794ADBR | 24-bit,192-khz sampling,advanced segment, audio stereo digital-to-analog converter |
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| PCM1794ADBRG4 | 24-bit,192-khz sampling,advanced segment, audio stereo digital-to-analog converter |
| PCM1794ADBG4 | 24-bit,192-khz sampling,advanced segment, audio stereo digital-to-analog converter |
| PCM1796DB | 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM1794ADB | 制造商:Texas Instruments 功能描述:IC DAC AUDIO 24BIT 192KHZ 28SSOP 制造商:Texas Instruments 功能描述:IC, DAC AUDIO 24BIT 192KHZ 28SSOP 制造商:Texas Instruments 功能描述:IC, DAC AUDIO 24BIT 192KHZ 28SSOP; Resolution (Bits):24bit; Sampling Rate:192kSPS; Input Channel Type:Serial; Supply Voltage Range:4.75V to 5.25V; Digital IC Case Style:SSOP; No. of Pins:28; Data Interface:3 Wire, Serial; Supply ;RoHS Compliant: Yes |
| PCM1794ADBG4 | 功能描述:音頻數/模轉換器 IC 24B 192 kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量: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 |
| PCM1794ADBR | 功能描述:音頻數/模轉換器 IC 24-Bit 192 kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量: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 |
| PCM1794ADBRG4 | 功能描述:音頻數/模轉換器 IC 24-Bit 192 kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量: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 |
| PCM1794AQDBRQ1 | 功能描述:DAC, Audio 24 bit 192k I2S, PCM 28-SSOP 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類型:DAC，音頻 分辨率（位）:24 b 采樣率（每秒）:192k 數據接口:I2S，PCM 電壓源:模擬和數字 電壓 - 電源:3 V ~ 3.6 V，5V 工作溫度:-25°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商器件封裝:28-SSOP 標準包裝:1 |
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