PCM1748 - 106dB SNR 立体声 DAC

PCM1748是TI德州仪器公司的一款音频DAC产品，PCM1748是106dB SNR 立体声 DAC，本站介绍了PCM1748的封装应用图解、特点和优点、功能等，并给出了与PCM1748相关的TI元器件型号供参考。

PCM1748 - 106dB SNR 立体声 DAC - 音频DAC - 音频转换器 - 德州仪器

产品描述

The PCM1748 is a CMOS, monolithic, integrated circuit which includes stereo digital-to-analog converters (DAC) and support circuitry in a small SSOP-16 package. The data converters use Texas Instruments' enhanced multilevel delta-sigma architecture that employs fourth-order noise shaping and 8-level amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1748 accepts industry-standard audio data formats with 16- to 24-bit data, providing easy interfacing to audio DSP and decoder chips. Sampling rates up to 100 kHz are supported. A full set of user-programmable functions is accessible through a 3-wire serial-control port that supports register write functions.

产品特性

24-Bit Resolution
Analog Performance (VCC = 5 V):
- Dynamic Range:
  - 106 dB, Typical (PCM1748KE)
  - 100 dB, Typical (PCM1748E)
- SNR:
  - 106 dB, Typical (PCM1748KE)
  - 100 dB, Typical (PCM1748E)
- THD+N:
  - 0.002%, Typical (PCM1748KE)
  - 0.003%, Typical (PCM1748E)
- Full-Scale Output: 3.1 Vp-p, Typical
8× Oversampling Digital Filter:
- Stop-Band Attenuation: -55 dB
- Pass-Band Ripple: ±0.03 dB
Sampling Frequency: 5 kHz to 100 kHz
System Clock: 256 fS, 384 fS, 512 fS, 768 fS With Autodetect
Accepts 16-, 18-, 20-, and 24-Bit Audio Data
Data Formats: Standard, I2S, and Left-Justified
User-Programmable Mode Controls:
- Digital Attenuation: 0 dB to -63 dB, 0.5 dB/Step
- Digital De-Emphasis
- Digital Filter Rolloff: Sharp or Slow
- Soft Mute
- Zero Flags for Each Output
Dual-Supply Operation:
- 5-V Analog
- 3.3-V Digital
5-V Tolerant Digital Inputs
Small SSOP-16 Package
APPLICATIONS
- AV Receivers
- DVD Movie Players
- DVD Add-On Cards for High-End PCs
- HDTV Receivers
- Car Audio Systems
- Other Applications Requiring 24-Bit Audio

FilterPro is a trademark of Texas Instruments. System Two, Audio Precision are trademarks of Audio Precision, Inc. All trademarks are the property of their respective owners.

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