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參數(shù)資料
| 型號： | PCM1748KE |
| 英文描述： | 24-Bit, 96kHz Sampling Enhanced Multilevel, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位，96kHz采樣加強多層次，Δ-Σ，音頻數(shù)字模擬轉換器 |
| 文件頁數(shù)： | 17/22頁 |
| 文件大小： | 323K |
| 代理商： | PCM1748KE |
PCM1748
SBAS165
17
PCB LAYOUT GUIDELINES
A typical PCB floor plan for the PCM1748 is shown in
Figure 12. A ground plane is recommended, with the analog
and digital sections being isolated from one another using a
split or cut in the circuit board. The PCM1748 should be
oriented with the digital I/O pins facing the ground plane
split/cut to allow for short, direct connections to the digital
audio interface and control signals originating from the
digital section of the board.
Separate power supplies are recommended for the digital and
analog sections of the board. This prevents the switching noise
present on the digital supply from contaminating the analog
power supply and degrading the dynamic performance of the
PCM1748. In cases where a common +5V supply must be
used for the analog and digital sections, an inductance (RF
choke, ferrite bead) should be placed between the analog and
digital +5V supply connections to avoid coupling of the digital
switching noise into the analog circuitry. Figure 13 shows the
recommended approach for single-supply applications.
PCM1748
V
CC
V
DD
DGND
Return Path for Digital Signals
Analog
Ground
Digital
Ground
AGND
Output
Circuits
DIGITAL SECTION
ANALOG SECTION
Digital Logic
and
Audio
Processor
Digital Power
+V
D
DGND
Analog Power
+5VA
+V
S
AGND
REG
–
V
S
PCM1748
V
CC
V
DD
DGND
Output
Circuits
RF Choke or Ferrite Bead
Common
Ground
AGND
DIGITAL SECTION
ANALOG SECTION
V
DD
Power Supplies
+5V
+V
S
AGND
REG
–
V
S
FIGURE 12. Recommended PCB Layout.
FIGURE 13. Single-Supply PCB Layout.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1748KE/2K | 功能描述:音頻數(shù)/模轉換器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(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 |
| PCM1748KE/2KG4 | 功能描述:音頻數(shù)/模轉換器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(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 |
| PCM1748KEG4 | 功能描述:音頻數(shù)/模轉換器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(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 |
| PCM-175 | 功能描述:電線鑒定 Pre-Printed WM Card, Vinyl Cloth, .22" W RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| PCM175/100 G | 制造商:Fibox 功能描述:Bulk |
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