參數(shù)資料
型號： PCM1796DB
元件分類： DAC
英文描述： 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
中文描述： 24位192千赫采樣高級分段音頻立體聲數(shù)模轉(zhuǎn)換器
文件頁數(shù)： 23/57頁
文件大?。?/td> 512K
代理商： PCM1796DB
SLES100 DECEMBER 2003
www.ti.com
23
Noise Suppression
The PCM1796 incorporates noise suppression using the system clock (SCK). However, there must be no more than
two noise spikes in 600 ns. The noise suppression works for SCK frequencies between 8 MHz and 40 MHz in fast
mode. However, it works incorrectly in the following conditions.
Case 1:
1.
t
(SCK)
> 120 ns (t
(SCK)
: period of SCK)
t
(HI)
+ t
(DHD)
< t
(SCK)
×
5
Spike noise exists on the first half of the SCL HIGH pulse.
2.
3.
4.
Spike noise exists on the SDA HIGH pulse just before SDA goes LOW.
SCL
SDA
Noise
When these conditions occur at the same time, the data is recognized as LOW.
Case 2:
1.
t
(SCK)
> 120 ns
t
(SHD)
or t
(RSHD)
< t
(SCK)
×
5
Spike noise exists on both SCL and SDA during the hold time.
2.
3.
SCL
SDA
Noise
When these conditions occur at the same time, the PCM1796 fails to detect a start condition.
Case 3:
1.
t
(SCK)
< 50 ns
t
(SP)
> t
(SCK)
Spike noise exists on SCL just after SCL goes LOW.
2.
3.
4.
Spike noise exists on SDA just before SCL goes LOW.
SCL
SDA
Noise
When these conditions occur at the same time, the PCM1796 erroneously detects a start or stop condition.
相關(guān)PDF資料
PDF描述
PCM1796 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM1796DB 制造商:Texas Instruments 功能描述:24BIT AUDIO DAC SMD 1796 SSOP28
PCM1796DBG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
PCM1796DBR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
PCM1796DBRG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
PCM1798 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-BIT, 192-KHZ SAMPLING ADVANCED SEGMENT, AUDIO STEREO DIGITAL TO ANALOG CONVERTER
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