confidential advance information analog reinvented ES9102C product brief ess technology, inc. 48401 fremont blvd. , fremont, ca 94538 , usa tel (510) 492-1088 ? fax (510) 492-1511 reference stereo adc feature benefit 32-bit hyperstream ? adc architecture o 127db dynamic range (mono mode) o ? 120db thd+n (mono mode) unprecedented dynamic range and ultra low distortion 32-bit programmable decimation (fir) filter o built?in sharp or low-group delay filters, or o user customizable characteristics customizable fir decimation filters for any application programmable 8-band biquad filter o built-in riaa filter o user customizable characteristics customizable equalization for any application programmable digital high-pass filter eliminates input dc offset up to 384khz sampling rate compatible with dvd-audio and professional applications i 2 c or hardware based control configured by microcontroller or used standalone flexible digital output modes synchronous spdif or i 2 s master/slave output, or asynchronous i 2 s slave output relative to master clock low power in a small package o < 200mw power consumption o 48-lqfp package simplifies pcb layout and power supply design applications ? professional recording systems ? studio mixing console ? digital audio workstations ? audio/video receivers ? audio preamplifiers ? audio processor device description dnr (db-a) thd+n (db) 32-bit digital filter 8-band biquad filter i 2 s / spdif output sample rate ES9102C sabre 32 reference 32-bit audio adc 127 (mono) 124 (stereo) ? 120 (mono) ? 118 (stereo) programmable programmable yes up to 384khz the sabre 32 reference adc is a two-channel 32-bit analog-to-digital (a/d) converter targeted for consumer applications such as audio pre-amplifier, audio processor, a/v receiver and professional audio applications such as recording systems, mixer consoles and digital audio workstations. using the ess proprietary 32-bit hyperstream ? adc architecture, the sabre 32 reference adc delivers an unprecedented dnr of 127db and thd+n of ? 120db in mono mode (or dnr of 124db and thd+n of ? 118db in stereo mode), a performance level that will satisfy the most demandi ng audio enthusiasts. for highest performance, the sabre 32 reference adc implements a 32-bit programmable decimation filter and outputs the full 32-bit resolution in i 2 s mode, or 24-bit resolution in spdif mode. a digital high-pass filter is available for dc removal. additionally, a programmable 8-band biquad filter is implemented for riaa or custom equalization. the sabre 32 reference adc supports synchronous spdif or i 2 s master/slave output, or asynchronous i 2 s slave out p ut relative to the master clock for u p to 384khz sam p le rate and consumes less than 200mw.
confidential advance informat ion rev. 0.3 august 20, 2014 ES9102C product brief ess technology, inc. 48401 fremont blvd., fremont, ca 94538, usa tel (510) 492-1088 ? fax (510) 492-1511 2 functional block diagram and description figure ? 1: ?? functional ? block ? diagram ? hyperstream adc the sabre adc uses ess? patented hyperstream architectu re for performing super accurate analog-to-digital conversion. the hyperstream adc uses a hybrid comb ination of high-speed digital and precision analog circuits to sample and convert the analog input signal. the oversampled signal is then passed to the digital core of the sabre adc for further processing. decimation filter a decimation filter structure is used to perform downsampling of the digital output from the hyperstream adc. the purpose of the decimation filter is to remove any high frequency dat a before downsampling the data to a lower sampling rate. the decimation filter is a two stage fir st ructure, and is fully programmable. programmable filter a fully programmable biquad filter is available after the decim ation filter. the biquad filter structure contains eight full biquads per channel, and is completely customizable, with up to 20db of headroom in each biquad. the programmable filter uses the riaa filter by default, and can be reprogrammed using i 2 c. serial output interface output data can be formatted to use either the spdif or the i 2 s digital interface formats. several types of i2s output formats are available (including lj, rj and i 2 s). control/status interface the sabre adc is fully programmable using i 2 c. the sabre adc also supports inte rrupt outputs, which can be serviced by an external microcontroller.
august 20, 2014 confidential advance information rev. 0.3 ES9102C product brief 3 ess technology, inc. 48401 fremont blvd., fremont, ca 94538, usa tel (510) 492-1088 ? fax (510) 492-1511 no part of this publication may be reproduced, stored in a retrie val system, transmitted, or translated in any form or by any means, electronic, mechanical, manual, optical, or otherwise, without the prior written permission of ess technology, inc. ess technology, inc. makes no repres entations or warranties regard ing the content of this docum ent. all specifications are subject to change without prior not ice. ess technology, inc. assumes no responsib ility for any errors contained herein. u.s. patents pending.
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