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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADC32RF44IRMPR датащи(PDF) 77 Page - Texas Instruments |
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ADC32RF44IRMPR датащи(HTML) 77 Page - Texas Instruments |
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77 / 135 page  77 ADC32RF44 www.ti.com SBAS809A – FEBRUARY 2017 – REVISED MARCH 2017 Product Folder Links: ADC32RF44 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 9.5.3.5 Register 05Ah (address = 05Ah), Master Page Figure 134. Register 05Ah 7 6 5 4 3 2 1 0 SYSREF DEL[2:0] 0 0 0 0 0 W-0h R/W-0h W-0h W-0h W-0h W-0h W-0h W-0h LEGEND: R/W = Read/Write; W = Write only; -n = value after reset Table 43. Register 05Ah Field Descriptions Bit Field Type Reset Description 7 SYSREF DEL2 W 0h When the SYSREF delay feature is enabled (3Ch, bit 6) the delay can be adjusted in 25-ps steps; the first step is 175 ps. The PVT variation of each 25-ps step is ±10 ps. The 175-ps step is ±50 ps; see Table 44. 6 SYSREF DEL1 R/W 5 SYSREF DEL0 W 4-0 0 W 0h Must write 0 Table 44. SYSREF DEL[2:0] Bit Settings STEP SETTING STEP (NOM) TOTAL DELAY (NOM) 1 01000 175 ps 175 ps 2 00111 25 ps 200 ps 3 00110 25 ps 225 ps 4 00101 25 ps 250 ps 5 00100 25 ps 275 ps 6 00011 25 ps 300 ps 9.5.3.6 Register 03Dh (address = 3Dh), Master Page Figure 135. Register 03Dh 7 6 5 4 3 2 1 0 0 0 0 0 0 JESD OUTPUT SWING W-0h W-0h W-0h W-0h W-0h R/W-0h LEGEND: R/W = Read/Write; W = Write only; -n = value after reset Table 45. Register 03Dh Field Descriptions Bit Field Type Reset Description 7-3 0 W 0h Must write 0 2-0 JESD OUTPUT SWING R/W 0h These bits select the output amplitude, VOD (mVPP), of the JESD transmitter for all lanes. 0 = 860 mVPP 1= 810 mVPP 2 = 770 mVPP 3 = 745 mVPP 4 = 960 mVPP 5 = 930 mVPP 6 = 905 mVPP 7 = 880 mVPP |
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