PCM2704C
- 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.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output and S/PDIF Output datasheet (Rev. B) | PDF | HTML | 2015年 8月 25日 |
| Application note | Differences between PCM270x and PCM270xC | 2011年 8月 16日 |
設計與開發
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PCM2704EVM-U — PCM2704 評估模組
The PCM2704EVM-U and PCM2705EVM-U are evaluation modules for the PCM2704/5 USB audio codec’s.
The EVM is supported by Windows® XP, Windows® Vista, Windows® 7, OSX and most operating systems which are compatible with USB class audio devices.
The PCM2704EVM-U and PCM2705EVM-U connect to a USB port of a (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 引腳 | 下載 |
|---|---|---|
| SSOP (DB) | 28 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。