- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376994 > DSD1794DBR (Texas Instruments, Inc.) 24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STRRO DIGITAL-TO-ALALOG CONVERTER PDF資料下載
參數(shù)資料
| 型號： | DSD1794DBR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STRRO DIGITAL-TO-ALALOG CONVERTER |
| 中文描述： | 24位192 kHz的采樣，高級分段，音頻STRRO數(shù)字至ALALOG轉(zhuǎn)爐 |
| 文件頁數(shù)： | 31/47頁 |
| 文件大?。?/td> | 417K |
| 代理商： | DSD1794DBR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁當(dāng)前第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁
SLES077A MARCH 2003 REVISED NOVEMBER 2003
www.ti.com
31
APPLICATION INFORMATION
APPLICATION CIRCUIT
The design of the application circuit is very important in order to actually realize the high S/N ratio of which the
DSD1794 is capable. This is because noise and distortion that are generated in an application circuit are not
negligible.
In the circuit of Figure 33, the output level is 2 V RMS and 127 dB S/N is achieved. The circuit of Figure 34 can realize
the highest performance. In this case the output level is set to 4.5 V rms and 129 dB S/N is achieved (stereo mode).
In monaural mode, if the output of the L-channel and R-channel is used as a balanced output, 132 dB S/N is achieved
(see Figure 36).
Figure 35 shows a circuit for the DSD mode, which is a 4
th
-order LPF in order to reduce the out-of-band noise.
I/V Section
The current of the DSD1794 on each of the output pins (I
OUT
L+, I
OUT
L–, I
OUT
R+, I
OUT
R–) is 7.8 mA p-p at 0 dB (full
scale). The voltage output level of the I/V converter (Vi) is given by following equation:
Vi = 7.8 mA pp
×
R
f
(R
f
: feedback resistance of I/V converter)
An NE5534 op amp is recommended for the I/V circuit to obtain the specified performance. Dynamic performance
such as the gain bandwidth, settling time, and slew rate of the op amp affects the audio dynamic performance of the
I/V section.
Differential Section
The DSD1794 voltage outputs are followed by differential amplifier stages, which sum the differential signals for each
channel, creating a single-ended I/V op-amp output. In addition, the differential amplifiers provide a low-pass filter
function.
The op amp recommended for the differential circuit is the Linear Technology LT1028, because its input noise is low.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DSD2410 | |
| DSD2425 | |
| DSD2450 | |
| DLD2410 | |
| DLD2425 | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSD1794DBRG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DSD1796 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24BIT 192KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
| DSD1796DB | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit Ster Adv Seg Delta-Sig 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 |
| DSD1796DBG4 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24B St Adv Segment 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 |
| DSD1796DBR | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit Ster Adv Seg Delta-Sig 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。