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参数资料
| 型号： | PCM1737E |
| 英文描述： | 24-Bit, 192kHz Sampling Enhanced Multi-Level, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位192kHz采样增强的多级，Δ-Σ，音频数字模拟转换器 |
| 文件页数： | 18/27页 |
| 文件大小： | 180K |
| 代理商： | PCM1737E |
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PCM1737
FIGURE 15. Recommended PCB Layout.
FIGURE 16. Single-Supply PCB Layout.
Since the overall system performance is defined by the
quality of the D/A converters and their associated analog
output circuitry, high quality audio op amps are recom-
mended for the active filters. Burr-Brown’s OPA2134 and
OPA2353 dual op amps are shown in Figures 12a and 14,
and are recommended for use with the PCM1737.
PCB LAYOUT GUIDELINES
A typical PCB floor plan for the PCM1600 and PCM1601 is
shown in Figure 15. 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 PCM1737
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 perfor-
mance of the PCM1737. 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 be-
tween the analog and digital +5V supply connections to
avoid coupling of the digital switching noise into the analog
circuitry. Figure 16 shows the recommended approach for
single-supply applications.
PCM1737
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
PCM1737
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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCM1737E/2K | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplg Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1737E/2KG4 | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplg Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1737E-1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PCM1737EG4 | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplg Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1738 | 制造商:BB 制造商全称:BB 功能描述:24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER |
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