PCM1680数据手册集成电路（IC）的ADC/DAC-特殊用途规格书PDF

描述 Description

The PCM1680 is a CMOS, monolithic integrated circuit which features eight 24-bit audio digital-to-analog converters (DACs) and support circuitry in a small SSOP-28. The DACs use TI's enhanced multilevel delta-sigma (%#x394;) architecture to achieve excellent signal-to-noise performance and a high tolerance to clock jitter.The PCM1680 accepts industry-standard audio data formats with 16-bit to 24-bit audio data. Sampling rates up to 200 kHz are supported. The PCM1680 provides a full set of user-programmable functions through a serial control port, using an SPI or I2C interface.

特性 Features

• 24-Bit Resolution
• Analog Performance:
• Dynamic Range: 105 dB Typical
• SNR: 105 dB Typical
• THD+N: 0.002% Typical
• Full-Scale Output: 3.9 VPP Typical

• 4x/8x Oversampling Interpolation Filter:
• Stop-Band Attenuation: -50 dB
• Passband Ripple: ±0.04 dB

• Sampling Frequency: 5 kHz to 200 kHz
• System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, or 1152 fS with Autodetect
• Zero Flags for Selectable Channel Combinations
• Serial Port (SPI/I2C) for Mode Control
• User-Programmable Functions:
• Flexible Audio Data Formats
• Right-Justified, I2S, and Left-Justified
• 16-, 18-, 20-, and 24-Bit Audio Data

• Digital Attenuation: Mode Selectable
• 0 dB to -63 dB, 0.5-dB/step
• 0 dB to -100 dB, 1-dB/step

• Soft Mute
• Digital De-Emphasis
• Digital Filter Roll-Off: Sharp or Slow

• Single Power-Supply Operation: 5-V Analog, 5-V Digital
• Package: SSOP-28 (150 mil)
• Pin-Compatible with PCM1780
• APPLICATIONS
• Integrated A/V Receivers
• DVD Movie and Audio Players
• HDTV Receivers
• Car Audio Systems
• DVD Add-On Cards for High-End PCs
• Digital Audio Workstations
• Other Multichannel Audio Systems

System Two, Audio Precision are trademarks of Audio Precision, Inc. SPI is a trademark of Motorola. I2C, I2S are trademarks of NXP Semiconductors.