PCM2706C
- On-Chip USB Interface:
- No Dedicated Device Driver Needed
- Full-Speed Transceivers
- Fully Compliant With USB 2.0 Specification
- USB 1.1 Descriptors With USB Audio
Class Support
- USB 1.1 Descriptors With USB Audio
- Certified by USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Bus-Powered or Self-Powered Operation
- Sampling Rates: 32 kHz, 44.1 kHz, and 48 kHz
- On-Chip Clock Generator With Single 12-MHz
Clock Source - Single Power Supply:
- Bus-Powered: 5 V, Typical (VBUS)
- Self-Powered: 3.3 V, Typical
- 16-Bit Delta-Sigma Stereo DAC
- Analog Performance at 5 V (Bus-Powered),
3.3 V (Self-Powered):- THD + N: 0.006% RL > 10 kΩ, Self-
Powered - THD + N: 0.025% RL = 32 Ω
- SNR = 98 dB
- Dynamic Range: 98 dB
- PO = 12 mW, RL = 32 Ω
- THD + N: 0.006% RL > 10 kΩ, Self-
- Oversampling Digital Filter
- Passband Ripple = ±0.04 dB
- Stop-Band Attenuation = –50 dB
- Single-Ended Voltage Output
- Analog LPF Included
- Analog Performance at 5 V (Bus-Powered),
- Multiple Functions:
- Up to Eight Human Interface Device (HID)
Interfaces (Model and Setting Dependent) - Suspend Flag
- S/PDIF Out With SCMS
- External ROM Interface (PCM2704C/6C)
- Serial Programming Interface (PCM2705C/7C)
- I2S Interface (Selectable on PCM2706C/7C)
- Up to Eight Human Interface Device (HID)
The PCM270xC are TI’s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output and S/PDIF Output 数据表 (Rev. B) | PDF | HTML | 2015-8-25 | ||
| 应用手册 | Differences between PCM270x and PCM270xC | 2011-8-16 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
PCM2706EVM-U — PCM2706 评估模块
PCM2706EVM-U 是 PCM2706C USB 音频编解码器的评估模块。
该 EVM 由 Windows® XP、Windows® Vista、Windows® 7、OSX 以及同 USB 类音频器件兼容的大多数操作系统提供支持。
PCM2706EVM-U 连接至 PC 的 USB 端口。USB 接口为 EVM 提供电源、控制及流式音频数据。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TQFP (PJT) | 32 | Ultra Librarian |
订购和质量
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