PCM1796中文资料123dB SNR 立体声 DAC（软件控制）数据手册TI规格书

描述 Description

The PCM1796 is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1796 provides balanced current outputs, allowing the user to optimize analog performance externally. The PCM1796 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1796 also interfaces with external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port, which supports register write and readback functions. The PCM1796 also supports the time division multiplexed command and audio (TDMCA) data format.

特性 Features

• 24-Bit Resolution
• THD+N: 0.0005%
• 8× Oversampling Digital Filter:
• Pass-Band Ripple: ±0.0002 dB
• System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
• PCM Data Formats: Standard, I²S, and Left-Justified
• Interface Available for Optional External Digital Filter or DSP
• User-Programmable Mode Controls:
• Digital De-Emphasis
• Soft Mute
• Compatible With PCM1792 (Pins and Mode Controls)
• 5-V Tolerant Digital Inputs
• APPLICATIONS
• SACD Players
• HDTV Receivers
• Digital Multitrack Recorders
• Other Applications Requiring 24-Bit Audio