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AD1853JRS

製品説明
仕様・特性

a Stereo, 24-Bit, 192 kHz, Multibit ⌺⌬ DAC AD1853 FEATURES 5 V Stereo Audio DAC System Accepts 16-/18-/20-/24-Bit Data Supports 24 Bits and 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 Data Directed Scrambling DAC—Least Sensitive to Jitter Differential Output for Optimum Performance 120 dB Signal to Noise (Not Muted) at 48 kHz (A-Weighted Mono) 117 dB Signal to Noise (Not Muted) at 48 kHz (A-Weighted Stereo) 119 dB Dynamic Range (Not Muted) at 48 kHz Sample Rate (A-Weighted Mono) 116 dB Dynamic Range (Not Muted) at 48 kHz Sample Rate (A-Weighted Stereo) –107 dB THD+N (Mono Application Circuit, See Figure 30) –104 dB THD+N (Stereo) 115 dB Stopband Attenuation (96 kHz) On-Chip Clickless Volume Control Hardware and Software Controllable Clickless Mute Serial (SPI) Control for: Serial Mode, Number of Bits, Interpolation Factor, Volume, Mute, De-Emphasis, Reset Digital De-Emphasis Processing for 32, 44.1 and 48 kHz Sample Rates Clock Auto-Divide Circuit Supports Five Master-Clock Frequencies Flexible Serial Data Port with Right-Justified, LeftJustified, I2S-Compatible and DSP Serial Port Modes 28-Lead SSOP Plastic Package APPLICATIONS Hi End: DVD, CD, Home Theater Systems, Automotive Audio Systems, Sampling Musical Keyboards, Digital Mixing Consoles, Digital Audio Effects Processors PRODUCT OVERVIEW The AD1853 is a complete high performance single-chip stereo digital audio playback system. It is comprised of a high performance digital interpolation filter, a multibit sigma-delta modulator, and a continuous-time current-out analog DAC section. Other features include an on-chip clickless stereo attenuator and mute capability, programmed through an SPIcompatible serial control port. The AD1853 is fully compatible with all known DVD formats and supports 48 kHz, 96 kHz and 192 kHz sample rates with up to 24 bits word lengths. It also provides the “Redbook” standard 50 µs/15 µs digital de-emphasis filters at sample rates of 32 kHz, 44.1 kHz and 48 kHz. The AD1853 has a very flexible serial data input port that allows for glueless interconnection to a variety of ADCs, DSP chips, AES/EBU receivers and sample rate converters. The AD1853 can be configured in left-justified, I2S, right-justified, or DSP serial port compatible modes. The AD1853 accepts serial audio data in MSB first, twos complement format. The AD1853 operates from a single +5 V power supply. It is fabricated on a single monolithic integrated circuit and is housed in a 28-lead SSOP package for operation over the temperature range 0°C to +70°C. FUNCTIONAL BLOCK DIAGRAM INT2؋ VOLUME MUTE DIGITAL DATA INPUT SERIAL MODE 2 SERIAL DATA INTERFACE ATTEN/ MUTE 2 3 VOLTAGE REFERENCE SERIAL CONTROL INTERFACE AD1853 8 ؋ FS INTERPOLATOR CLOCK IN DIGITAL SUPPLY CONTROL DATA INPUT INT4؋ MULTIBIT SIGMADELTA MODULATOR AUTO-CLOCK DIVIDE CIRCUIT IDAC ANALOG OUTPUTS ATTEN/ MUTE 8 ؋ FS INTERPOLATOR MULTIBIT SIGMADELTA MODULATOR IDAC 2 RESET MUTE DE-EMPHASIS ANALOG SUPPLY 2 ZERO FLAG REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999

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