PCM2912A
- On-Chip USB Interface:
- With Full-Speed Transceivers
- Fully Compliant With USB 2.0 Specification
- Certified By USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Asynchronous-Isochronous Transfer for
Record - Bus Powered
- 16-Bit Delta-Sigma ADC and DAC
- Sampling Rate:
- 8, 11.025, 16, 22.05, 32, 44.1, or 48 kHz
- On-Chip Clock Generator:
- With Single 6-MHz Clock Source
- Mono ADC with Microphone Input
- Analog Performance at VBUS = 5 V:
- THD+N: 0.01%
- SNR: 92 dB
- Dynamic Range: 90 dB
- Decimation Digital Filter
- Passband Ripple: ±0.05 dB
- Stop-Band Attenuation: –65 dB
- Single-Ended Voltage Input
- Antialiasing Filter Included
- Digital HPF Included
- Microphone Bias, Microphone Amplifier, and
Input PGA
- Analog Performance at VBUS = 5 V:
- Stereo DAC With Headphone Output
- Analog Performance at VBUS = 5.0 V:
- THD+N: 0.01% (RL > 10 kΩ)
- THD+N: 0.02% (RL = 32 Ω)
- SNR: 92 dB
- Dynamic Range: 90 dB
- PO: 13 mW (RL = 32 Ω)
- PO: 25 mW (RL = 16 Ω)
- Oversampling Digital Filter
- Passband Ripple: ±0.1 dB
- Stop-Band Attenuation: –43 dB
- Single-Ended Voltage Output
- Analog LPF Included
- Sidetone PGA, Output PGA, and HP
Amplifier
- Analog Performance at VBUS = 5.0 V:
- Multifunctions:
- Suspend, Playback, and Record Status Flag
- Microphone Amplifier, Mute, and Gain Control
- Pop/Click Noise-Free
- Single Power-Supply: 5 V Typical (VBUS)
- Package: 32-Pin TQFP
The PCM2912A is the Texas Instruments single-chip, USB stereo audio codec with a USB, 2.0-compliant, full-speed protocol controller and an analog front-end (AFE) function for headset applications.
The USB protocol controller works with no software code, but USB descriptors can be modified on request. The PCM2912A employs SpAct™ architecture, TI’s unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enables independent playback and record sampling rates with low clock jitters.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | PCM2912A Audio Codec With USB Interface, Mono Microphone Input and Stereo Headphone Output datasheet (Rev. A) | PDF | HTML | 2015年 8月 25日 |
| * | Errata | Application Information for Difference Between PCM2912A and PCM2912 | 2008年 11月 25日 | |
| EVM User's guide | PCM2912A Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2024年 4月 3日 | |
| Application note | Operating Environments for PCM2912A Applications (Rev. A) | 2016年 11月 10日 | ||
| Application note | Solving Enumeration Errors in USB Audio DAC and CODEC Designs | 2009年 10月 30日 |
設計與開發
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DEM-PCM2912AEVM — DEM-PCM2912AEVM 評估模組
The DEM-PCM2912A EVM is a complete evaluation platform for the 16-bit, mono microphone input and stereo headphone output PCM2912A bus-powered audio codec with a USB interface. All necessary connectors and circuitry are provided for interfacing to audio test systems and commercial audio equipment.
A (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TQFP (PJT) | 32 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點