AD1958: High Performance, Single-Chip Stereo Digital Audio Playback System

停产产品,The AD1958 is a complete, high performance, single-chip stereo digital audio playback system. It is comprised of a multibit sigma-delta modulator, digital interpolation filters and analog output drive circuitry, with an on-board dual PLL clock generator. Other features include an on-chip stereo attenuator and mute, programmed through an SPI-compatible serial control port. The AD1958 is fully compatible with all known DVD formats, including 96 kHz and 192 kHz sample frequencies and 24-bits. It is also backwards compatible by supporting 50/15 µs digital de-emphasis for "redbook" Compact Discs, as well as de-emphasis at 32 kHz and 48 kHz sample rates.

特性

5 V Stereo Audio DAC System
Accepts 16-/18-/20-/24-Bit Data
Supports 24 Bits, 192 kHz Sample Rate
Accepts a Wide Range of Sample Rates Including: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz
Multibit Sigma-Delta Modulator with “Perfect Differential Linearity Restoration” for Reduced Idle Tones and Noise Floor
Single-Ended Output for Easy Use
Data Directed Scrambling DAC—Least Sensitive to Jitter
108 dB Signal-to-Noise (Not Muted) at 48 kHz Sample Rate (A-Weighted Stereo)
109 dB Dynamic Range (Not Muted) at 48 kHz Sample Rate (A-Weighted Stereo)
–96 dB THD + N (Stereo)
75 dB Stop Band Attenuation
On-Chip Clickless Volume Control

功能框图

技术指标

# DAC: 2
DAC DNR (dB): 109dB
DAC THD+N : 96dB
Voltage Supply (V): 5V
Resolution (Bits):24bit