AD1958YRSZ

Product Summary

The AD1958YRSZ 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 of the AD1958YRSZ include an on-chip stereo attenuator and mute, programmed through an SPI-compatible serial control port. The AD1958YRSZ is fully compatible with all known DVD formats including 96 kHz and 192 kHz sample frequencies and 24 bits. It also is backwards-compatible by supporting 50 μs/15 μs digital de-emphasis for “redbook” compact discs, as well as de-emphasis at 32 kHz and 48 kHz sample rates. The applications of the AD1958YRSZ are DVD, CD, Home Theater Systems, Automotive Audio Systems, Sampling Musical Keyboards, Digital Mixing Consoles, Digital Audio Effects Processors.

Parametrics

AD1958YRSZ absolute maximum ratings: (1)DVDD to DGND: –0.3 V to +6 V; (2)AVDD to DGND: –0.3 V to +6 V; (3)Digital Inputs: DGND – 0.3 V to DVDD + 0.3 V; (4)Analog Inputs: AGND – 0.3 V to AVDD + 0.3 V; (5)AGND to DGND: –0.3 V to + 0.3 V; (6)Reference Voltage: (AVDD + 0.3)/2; (7)Soldering (10 sec): 300℃.

Features

AD1958YRSZ features: (1)5 V Stereo Audio DAC System; (2)Accepts 16-/18-/20-/24-Bit Data; (3)Supports 24 Bits, 192 kHz Sample Rate; (4)Accepts a Wide Range of Sample Rates Including:32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz; (5)Multibit Sigma-Delta Modulator with “Perfect Differential; (6)Linearity Restoration” for Reduced Idle Tones and Noise Floor; (7)Data Directed Scrambling DAC—Least Sensitive to Jitter; (8)Single-Ended Output for Easy Use; (9)108 dB Signal-to-Noise (Not Muted) at 48 kHz Sample Rate (A-Weighted Stereo); (10)109 dB Dynamic Range (Not Muted) at 48 kHz Sample Rate (A-Weighted Stereo); (11)–96 dB THD + N (Stereo); (12)75 dB Stop Band Attenuation; (13)On-Chip Clickless Volume Control; (14)Hardware and Software Controllable Clickless Mute; (15)Serial (SPI) Control for: Serial Mode, Number of Bits,; (16)Sample Rate, Volume, Mute, De-Emphasis; (17)Digital De-Emphasis Processing for 32 kHz, 44.1 kHz, and 48 kHz Sample Rates; (18)Programmable Dual Fractional-N PLL Clock Generator; (19)27 MHz Master Clock Oscillator; (20)Better than 100 ps rms Master Clock Jitter.

Diagrams