儘管為了支援以前的設計而繼續生產此項產品,但我們並不建議用在新設計上。考量下列其中一項替代產品:
PCM2903B
- On-Chip USB Interface:
- With Full-Speed Transceivers
- Fully Compliant with USB 2.0 Specification
- Certified by USB-IF
- Partially Programmable Descriptors(1)
- USB Adaptive Mode for Playback
- USB Asynchronous Mode for Record
- Self-Powered
- 16-Bit Delta-Sigma ADC and DAC
- Sampling Rates:
- DAC: 32, 44.1, 48 kHz
- ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
- On-Chip Clock Generator With Single 12-MHz Clock Source
- S/PDIF Input/Output
- Single Power Supply:
- 3.3 V Typical
- Stereo ADC:
- Analog Performance at VCCC = VCCP1 = VCCP2
= VCCX = VDD = 3.3 V:- THD+N = 0.01%
- SNR = 89 dB
- Dynamic Range = 89 dB
- Decimation Digital Filter:
- Passband Ripple = ±0.05 dB
- Stop-Band Attenuation = -65 dB
- Single-Ended Voltage Input
- Antialiasing Filter Included
- Digital HPF Included
- Analog Performance at VCCC = VCCP1 = VCCP2
- Stereo DAC:
- Analog Performance at VCCC = VCCP1 = VCCP2
= VCCX = VDD = 3.3 V:- THD+N = 0.005%
- SNR = 96 dB
- Dynamic Range = 93 dB
- Oversampling Digital Filter:
- Passband Ripple = ±0.1 dB
- Stop-Band Attenuation = -43 dB
- Single-Ended Voltage Output
- Analog LPF Included
- Analog Performance at VCCC = VCCP1 = VCCP2
- Multifunctions:
- Human Interface Device (HID) Function:
- Volume and and Mute Controls
- Suspend Flag Function
- Human Interface Device (HID) Function:
- 28-Pin SSOP Package
- APPLICATIONS
- USB Audio Speaker
- USB Headset
- USB Monitor
- USB Audio Interface Box
(1)The descriptor can be modified by changing a mask.
SpAct is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
The PCM2903B is Texas Instruments' single-chip, USB, stereo audio codec with a USB-compliant full-speed protocol controller and S/PDIF. The USB protocol controller requires no software code, but the USB descriptors can be modified in some areas (for example, vendor ID and/or product ID). The PCM2903B employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter as well as independent playback and record sampling rates.
技術文件
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檢視所有 6 類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Stereo Audio Codec with USB Interface, Single-Ended Analog In/Out and S/PDIF datasheet | 2008年 12月 17日 | |
* | Errata | Updated Operating Environments for PCM270x, PCM290x Applications | 2007年 10月 19日 | |
Application note | Key Differences Between the PCM290x and PCM290xC | 2011年 9月 14日 | ||
Application note | Solving Enumeration Errors in USB Audio DAC and CODEC Designs | 2009年 10月 30日 | ||
More literature | PCM2903B Read-Me First Letter: PCM2903B and PCM2903 Difference | 2009年 1月 24日 | ||
EVM User's guide | DEM-PCM2903B (PCM2903B EVM) User's Guide | 2009年 1月 22日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
封裝 | 引腳 | 下載 |
---|---|---|
SSOP (DB) | 28 | 檢視選項 |
訂購與品質
內含資訊:
- 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
內含資訊:
- 晶圓廠位置
- 組裝地點