DSD1791DBR

24位192 kHz的采样高级分段音频立体声数字模拟转换器 24 BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER

DESCRIPON

The DSD1791 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 DSD1791 provides balanced voltage outputs, allowing the user to optimize analog performance externally. The DSD1791 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1791 also accepts interface to external digital filter devices DF1704, DF1706, PMD200.

FEATURES

Supports both DSD and PCM Formats

24-Bit Resolution

Analog Performance:

   − Dynamic Range: 113 dB

   − THD+N: 0.001%

   − Full-Scale Output: 2.1 V RMS at Postamp

Differential Voltage Output: 3.2 Vp-p

8× Oversampling Digital Filter:

   − Stop-Band Attenuation: –82 dB

   − Pass-Band Ripple: ±0.002 dB

Sampling Frequency: 10 kHz to 200 kHz

System Clock: 128, 192, 256, 384, 512, or 768 fSWith Autodetect

Accepts 16-, 20-, and 24-Bit PCM Audio Data

PCM Data Formats: Standard, I2S, and Left-Justified

DSD Format Interface Available

Optional Interface to External Digital Filter or DSP Available

TDMCA Interface Available

User-Programmable Mode Controls:

   − Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step

   − Digital De-Emphasis

   − Digital Filter Rolloff: Sharp or Slow

   − Soft Mute

   − Zero Flag for Each Output/PCM and DSD Formats

Dual Supply Operation:

   − 5-V Analog, 3.3-V Digital

5-V Tolerant Digital Inputs

Small 28-Lead SSOP Package, Lead-Free Product

APPLICATIONS

A/V Receivers

SACD Players

DVD Players

HDTV Receivers

Car Audio Systems

Digital Multitrack Recorders

Other Applications Requiring 24-Bit Audio