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ES9102C Datenblatt(PDF) 2 Page - ESS Technology,Inc |
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ES9102C Datenblatt(HTML) 2 Page - ESS Technology,Inc |
2 / 3 page CONFIDENTIAL ADVANCE INFORMATION 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 architecture for performing super accurate analog-to-digital conversion. The HyperStream ADC uses a hybrid combination 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 data before downsampling the data to a lower sampling rate. The decimation filter is a two stage FIR structure, and is fully programmable. Programmable Filter A fully programmable biquad filter is available after the decimation 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 2C. Serial Output Interface Output data can be formatted to use either the SPDIF or the I 2S digital interface formats. Several types of I2S output formats are available (including LJ, RJ and I 2S). Control/Status Interface The Sabre ADC is fully programmable using I 2C. The Sabre ADC also supports interrupt outputs, which can be serviced by an external microcontroller. |
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