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AD9937 датащи(PDF) 9 Page - Analog Devices |
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AD9937 датащи(HTML) 9 Page - Analog Devices |
9 / 44 page REV. 0 AD9937 –9– Table I. Control Register Map Bit Bit Register Addr Breakdown Width Default Name Function 0 (23:0) 24 0 SW_RESET Software Reset = 000000 (Reset All Registers to Default). 10 10 OUTCONT_REG Internal OUTCONT Signal Control (0 = Digital Outputs held at fixed dc level, 1 = Normal Operation). (23:1) 23 Unused 2(1:0) 2 0 AFE_STBY AFE Standby (0 = Full Standby, 1 = Normal Operation, 2/3 = Reference Standby). 21 0DIG_STBY Digital Standby (0 = Full Standby, 1 = Normal Operation). (23:3) 21 Unused 3(7:0) 8 0x80 REFBLACK Black Clamp Level. 81 1 BC_EN 1 = Black Clamp Enable. 91 0 TESTMODE This register should always be set to 0. 10 1 0 TESTMODE This register should always be set to 0. 11 1 0 PBLK_LEVEL 0 = Blank to 0, 1 = Blank to Clamp Level (REFBLACK). 12 1 0 TRISTATEOUT 0 = Data Outputs are Driven, 1 = Data Outputs are Three-Stated. 13 10 RETIMEOUT_BAR 0 = Retime Data Outputs, 1 = Do Not Retime Data Outputs. 14 1 0 GRAY_ENCODE 1 = Gray Encode ADC Outputs. (16:15) 2 0 TESTMODE This register should always be set to 0. 17 1 0 TESTMODE This register should always be set to 0. 18 1 1 TESTMODE This register should always be set to 1. (23:19) 5 Unused 40 10 VCKM_DIVIDE VCKM Input Clock Divider (0 = VCKM, 1 = VCKM/2). 11 0 H1BLKRETIME Retimes the H1 HBLK to Internal Clock. 21 0 LM_INVERT LM Inversion Control (1 = Invert Programmed LM). 31 0 TGOFD_INVERT TG and OFD Inversion Control (1 = Invert Programmed TG and ODF). 41 0 VDHD_INVERT VD and HD Inversion Control (1 = Invert Programmed VD and HD; Note that Internal VD/HD Are HI Active). 51 0 MASTER Operating Mode (0 = Slave Mode, 1 = Master Mode). (23:6) 18 Unused 5(5:0) 6 0x00 SHDLOC SHD Sample Location. (11:6) 6 0x24 SHPLOC SHP Sample Location. (17:12) 6 0x00 DOUTPHASE Data Output [9:0] and VCLK Phase Adjustment. (19:18) 2 0x00 DOUT_DELAY Data Output Clock Selection (0 = No Delay, 1 = ~4 ns, 2 = ~8 ns, 3 = ~12 ns). 20 1 0 VCLKMASK VCLK Masking Control (1 = Mask). 21 1 1 VCLK_INVERT 1 = Invert VCLK. 22 1 0 DTEST 1 = Internal Digital Signal Test Mode. 23 1 – Unused 6(5:0) 6 0x00 H1POSLOC H1 Positive Edge Location. (11:6) 6 0x20 H1NEGLOC H1 Negative Edge Location. (17:12) 6 0x00 RSPOSLOC RS Positive Edge Location. (23:18) 6 0x10 RSNEGLOC RS Negative Edge Location. 7(2:0) 3 4 H1DRV H1A/B/C/D Drive Strength (0 = OFF, 1 = 1.75 mA, 2 = 3.5 mA, 3 = 5.25 mA, 4 = 7 mA, 5 = 8.75 mA, 6 = 10.5 mA, 7 = 12.25 mA). (5:3) 3 4 H2DRV H2A/B Drive Strength (see H1DRV). (8:6) 3 4 RSDRV RS Drive Strength (see H1DRV). (23:9) 15 Unused (23:1) 23 Unused |
Аналогичный номер детали - AD9937 |
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Аналогичное описание - AD9937 |
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