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Datei
toplevel.vhd
Sinc_filt generic map ( DECIMATOR_M_BIT_SIZE => 5 ) -- M = 2^DECIMATOR_M_BIT_SIZE Port map( Mclk => AD7401A_ADC_Mclk_s, Mdata => AD7401A_ADC_Mdat_i, rst => rst_s, DataRate_clk => DataRate_clk_s, done => isSinc_filt_done_s, DataOut => sinc_filt_dout_s); -- Mclk nach draßen AD7401A_ADC_nMclk_s <= not AD7401A_ADC_Mclk_s; AD7401A_ADC_Mclk_inst : ODDR2 Port map(Q => AD7401A_ADC_Mclk_o, C0 => AD7401A_ADC_Mclk_s, C1 => AD7401A_ADC_nMclk_s, CE => '1', D0 => '1', D1 => '0', R => '0', S => '0'); --AD7401A_ADC_Mclk_o <= AD7401A_ADC_Mclk_s
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PDF
AD7401.pdf
Isolated Sigma-Delta Modulator AD7401 FEATURES GENERAL DESCRIPTION 1 20 MHz maximum external clock rate The AD7401 is a second-order, sigma-delta (Σ-Δ) modulator Second-order modulator that converts an analog input signal into a high speed
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Datei
toplevel_TB.vhd
CLK_50MHZ, SW => SW, LED => LED, RS232_DCE_RXD => RS232_DCE_RXD, RS232_DCE_TXD => RS232_DCE_TXD, AD7401A_ADC_Mclk_o => AD7401A_ADC_Mclk_o, AD7401A_ADC_Mdat_i => AD7401A_ADC_Mdat_i, LTC2624_DAC_nCS_o => LTC2624_DAC_nCS_o, LTC2624_DAC_SCK_o => LTC2624_DAC_SCK_o, LTC2624_DAC_SDI_o => LTC2624_DAC_SDI_o,
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PDF
TMC4671-LA_datasheet.pdf
external delta sigma modulators is intended for external isolated sigma delta modulators, such as AD7401 (with MCLK input driven by TMC4671), or AD7402 (with MCLK output to drive TMC4671). In addition, the external delta sigma interface supports the use of simple comparator with a R-C-R network as external