PCM2704
- On-Chip USB Interface:
- No Need of Dedicated Device Driver
- With Full-Speed Transceivers
- Fully Compliant With USB 1.1 Specification
- Certified by USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Bus-Powered or Self-Powered Operation
- Sampling Rate: 32, 44.1, 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 - Oversampling Digital Filter Pass-Band Ripple = ±0.04 dBStop-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 (Depending on Model and Settings)
- Suspend Flag
- S/PDIF Out With SCMS
- External ROM Interface (PCM2704/6)
- Serial Programming Interface (PCM2705/7)
- I2S Interface (Selectable on PCM2706/7)
- Package:
The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-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 parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Stereo Audio DAC With USB Interface Single-Ended Headphone Output and S/PDIF Out datasheet (Rev. F) | 2009/01/15 | |
| * | Errata | Updated Operating Environments for PCM270x, PCM290x Applications | 2007/10/19 | |
| Application note | Differences between PCM270x and PCM270xC | 2011/08/16 | ||
| User guide | PCM270xEVM-U User's Guide | 2011/05/12 | ||
| Application note | Solving Enumeration Errors in USB Audio DAC and CODEC Designs | 2009/10/30 |
설계 및 개발
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PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SSOP (DB) | 28 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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