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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ES9080 датащи(PDF) 94 Page - ESS Technology,Inc |
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ES9080 датащи(HTML) 94 Page - ESS Technology,Inc |
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94 / 146 page  CONFIDENTIAL ADVANCE INFORMATION 0.4.3 ES9080 Product Datasheet ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 WWW.ESSTECH.COM 94 Register 108: FILTER CONFIG Bits [7] [6] [5] [4:3] [2:0] Default 1'b0 1'b1 1'b0 2'b10 3'd0 Bits Mnemonic Description [7] RESERVED NA [6] BYPASS_DEEMPH De-emphasis filter control for channels 1/2. • 1'b0: Enables de-emphasis filters, for ch1/2 only • 1'b1: Disables de-emphasis filters (default) [5] PEAK_FILTER DRE peak filter control. • 1'b0: Disables DRE peak filter (default) • 1'b1: Enables DRE peak filter [4:3] SEL_DEEMPH Configures the de-emphasis filters for various sample rate. • 2'b00: FS=32kHz • 2'b01: FS=44.1kHz • 2'b10: FS=48kHz (default) • 2'b11: Reserved [2:0] FILTER_SHAPE Selects the 8x interpolation FIR filter shape. • 3'd0: Minimum phase (default) • 3'd1: Linear phase apodizing • 3'd2: Reserved • 3'd3: Linear phase fast roll-off low ripple • 3'd4: Reserved • 3'd5: Reserved • 3'd6: Minimum phase slow roll-off • 3'd7: Minimum phase slow roll-off low dispersion Note: Chosen filter shape is the same for all channels Register 109: IIR CONFIG Bits [7:6] [5:3] [2:0] Default 2'd1 3'd4 3'd4 Bits Mnemonic Description [7:6] IIR_DITHER_SCALE IIR dither scaling. IIR dither amount is IIR1_BW+IIR_DITHER_SCALE+2 bits. • 2'b01: Default • 2'b11: For Best low level linearity use this setting [5:3] RESERVED NA [2:0] IIR1_BW IIR1 bandwidth control. • 3'b011: Bandwidth *2 • 3'b100: Normal conditions (default) • 3'b101: Bandwidth/2 All other values are reserved |
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