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DAC39J84IAAVR Datasheet(PDF) 67 Page - Texas Instruments |
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DAC39J84IAAVR Datasheet(HTML) 67 Page - Texas Instruments |
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67 / 146 page  DAC39J84 www.ti.com SLASE48A – NOVEMBER 2014 – REVISED JANUARY 2015 7.5.1 Register Descriptions 7.5.1.1 config0 Register – Address: 0x00, Default: 0x0218 Figure 82. config0 Register Format 15 14 13 12 11 10 9 8 qmc_offsetab_e qmc_offsetcd_e qmc_corrab_en qmc_corrcd_en interp na na a a 7 6 5 4 3 2 1 0 alarm_zeros_tx outsum_ena alarm_zeros_je alarm_out_ena alarm_out_pol pap_ena inv_sinc_ab_en inv_sinc_cd_en enable_ena sd_data_ena a a Table 31. config0 Register Field Descriptions Register Addr Default Bit Name Function Name (Hex) Value config0 0x0 15 qmc_offsetab_ena Enable the offset function for the AB data path when asserted. 0 14 qmc_offsetcd_ena Enable the offset function for the CD data path when asserted. 0 13 qmc_corrab_ena Enable the Quadrature Modulator Correction (QMC) function for 0 the AB data path when asserted. 12 qmc_corrcd_ena Enable the QMC function for the CD data path when asserted. 0 11:08 interp Determines the interpolation amount. 0010 0000: 1x 0001: 2x 0010: 4x 0100: 8x 1000: 16x 7 alarm_zeros_txenable_ena When asserted any alarm that isn’t masked will mid-level the DAC 0 output. 6 outsum_ena Turns on the summing of the A+C and B+D data paths. 0 5 alarm_zeros_jesd_data_ena When asserted any alarm that isn’t masked will zero the data 0 coming out of the JESD block. 4 alarm_out_ena When asserted the pin ALARM becomes an output instead of a 1 tri-stated pin. 3 alarm_out_pol This bit changes the polarity of the ALARM signal. (0=negative 1 logic, 1=positive logic) 2 pap_ena Turns on the Power Amp Protection (PAP) logic. 0 1 inv_sinc_ab_ena Turns on the inverse sinc filter for the AB path when programmed 0 to ‘1’. 0 inv_sinc_cd_ena Turns on the inverse sinc filter for the CD path when programmed 0 to ‘1’. Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 67 Product Folder Links: DAC39J84 |
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