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參數(shù)資料
| 型號： | PCM1704 |
| 英文描述： | 24-Bit, 96kHz BiCMOS Sign-Magnitude DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位96kHz的的BiCMOS注冊級數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 9/9頁 |
| 文件大小： | 229K |
| 代理商： | PCM1704 |
9
PCM1704
FIGURE 4. Audio Interface Connections for Stereo Audio
Application.
FIGURE 5. Typical Application Circuit (one channel shown).
DOR
WCKO
BCKO
DOL
DATA
WCLK
BCLK
DATA
WCLK
BCLK
DF1704
or Other
Digital Filter
PCM1704
PCM1704
24-Bit
96kHz
Data
TYPICAL APPLICATION
EXAMPLES
The audio interface connections for a stereo audio applica-
tion is shown in Figure 4. The audio data is input to the
digital filter, which then oversampleS the data by a factor of
8. The audio data is then filtered digitally and output to the
PCM1704 DACs.
Figure 5 shows single channel circuit connections for a
typical PCM1704 application. It shows the PCM1704 inter-
face to the digital filter, the I/V converter, and the DAC post
filter. Selection of an appropriate op amp for the I/V con-
verter is critical for obtaining optimum dynamic perfor-
mance from the PCM1704. The OPA627 is recommended
for this application. Op amps with similar characteristics and
faster settling times may also be used.
The suggested DAC post filter is a second-order lowpass
active filter, using the multiple feedback (MFB) circuit
technique. The OPA2134 is an excellent choice for the op
amp in this circuit, since it is designed for high performance
audio applications. The post filter is used to reconstruct and
band limit the DAC output signal.
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
C
1
C
2
C
4
C
3
C
5
+
Digital
Controls
Aluminum
Electrolytics
–5V
100
μ
F
0.1
μ
F
+
C
7
+
+
+
4.7
μ
F
+
OPA627
OP1/2
47pF
4.7
μ
F
+
C
6
+
+
+
μ
F
0.1
μ
F
100
μ
F
0.1
μ
F
+
+5V
–15V
Audio
Output
+15V
+
μ
F
0.1
μ
F
PCM1704U
DATA
BCLK
NC
–V
DD
DGND
+V
DD
WCLK
NC
20BIT
INVERT
–V
CC
REF DC
NC
SERVO DC
AGND
AGND
I
OUT
NC
BPO DC
+V
CC
8X
Oversampling
Interpolation
Filter
2.5k
U1
U2
4.7k
4.7k
2k
4.7
μ
F
+
560pF
2200pF
4.7
μ
F
+
DAC
I/V
Post Filter
24-Bit
96kHz Data
C
1
= 4.7
μ
F
C
2
= 4.7
μ
F
C
3
= 4.7
μ
F
C
4
= 47
μ
F
C
5
= 47
μ
F
C
6
= 100
μ
F
C
7
= 4.7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCM1704U | 24-Bit, 96kHz BiCMOS Sign-Magnitude DIGITAL-TO-ANALOG CONVERTER |
| PCM1721 | DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE PLL |
| PCM1721 | Stereo Audio Digital-To-Analog Converter With Programmable PLL(帶可編程PLL立體聲音頻D\A轉(zhuǎn)換器) |
| PCM1723 | Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE PLL |
| PCM1725 | Stereo Audio DIGITAL-TO-ANALOG CONVERTER 16 Bits, 96kHz Sampling |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1704U | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 96kHz BiCMOS Sign-Mgntd 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 |
| PCM1704U | 制造商:Texas Instruments 功能描述:D/A Converter (D-A) IC |
| PCM1704U/2K | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 96kHz BiCMOS Sign-Mgntd 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 |
| PCM1704U-1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PCM1704U-2K | 制造商:TI 制造商全稱:Texas Instruments 功能描述:BiCMOS Sign-Magnitude DIGITAL-TO-ANALOG CONVERTER |
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