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AD9849 датащи(PDF) 17 Page - Analog Devices |
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AD9849 датащи(HTML) 17 Page - Analog Devices |
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17 / 36 page ![]() REV. 0 AD9848/AD9849 –17– Bit Default Address Content Width Value Register Name Register Description PBLK # Bits 146 C5 [0] 1 01 pblkdir PBLK Internal/External (0 = Internal, 1 = External) C6 [0] 1 00 pblkpol PBLK External Active Polarity (0 = Low Active, 1 = High Active) C7 [0] 1 01 pblkspol0 Sequence #0: Start Polarity for PBLK C8 [5:0] 6 3D pblktog1_0[5:0] Sequence #0: Toggle Position 1 for PBLK C9 [5:0] 6 00 pblktog1_0[11:6] CA [5:0] 6 2A pblkbtog2_0[5:0] Sequence #0: Toggle Position 2 for PBLK CB [5:0] 6 06 pblkbtog2_0[11:6] CC [0] 1 00 pblkspol1 Sequence #1: Start Polarity for PBLK CD [5:0] 6 2A pblktog1_1[5:0] Sequence #1: Toggle Position 1 for PBLK CE [5:0] 6 06 pblktog1_1[11:6] CF [5:0] 6 3F pblktog2_1[5:0] Sequence #1: Toggle Position 2 for PBLK D0 [5:0] 6 3F pblktog2_1[11:6] D1 [0] 1 00 pblkspol2 Sequence #2: Start Polarity for PBLK D2 [5:0] 6 3F pblktog1_2[5:0] Sequence #2: Toggle Position 1 for PBLK D3 [5:0] 6 3F pblktog1_2[11:6] D4 [5:0] 6 3F pblktog2_2[5:0] Sequence #2: Toggle Position 2 for PBLK D5 [5:0] 6 3F pblktog2_2[11:6] D6 [0] 1 01 pblkspol3 Sequence #3: Start Polarity for PBLK D7 [5:0] 6 3F pblktog1_3[5:0] Sequence #3: Toggle Position 1 for PBLK D8 [5:0] 6 3F pblktog1_3[11:6] D9 [5:0] 6 3F pblktog2_3[5:0] Sequence #3: Toggle Position 2 for PBLK DA [5:0] 6 3F pblktog2_3[11:6] 0 00 pblkscp0 PBLK Sequence-Change-Position #0 (hardcoded to 0) DB [1:0] 2 02 pblksptr0 PBLK Sequence Pointer for SCP #0 DC [5:0] 6 01 pblkscp1[5:0] PBLK Sequence-Change-Position #1 DD [5:0] 6 00 pblkscp1[11:6] DE [1:0] 2 01 pblksptr1 PBLK Sequence Pointer for SCP #1 DF [5:0] 6 02 pblkscp2[5:0] PBLK Sequence-Change-Position #2 E0 [5:0] 6 00 pblkscp2[11:6] E1 [1:0] 2 00 pblksptr2 PBLK Sequence Pointer for SCP #2 E2 [5:0] 6 37 pblkscp3[5:0] PBLK Sequence-Change-Position #3 E3 [5:0] 6 03 pblkscp3[11:6] E4 [1:0] 2 02 pblksptr3 PBLK Sequence Pointer for SCP #3 H1–H4, RG, SHP, SHD # Bits 53 E5 [0] 1 00 h1pol H1/H2 Polarity Control (0 = No Inversion, 1 = Inversion) E6 [5:0] 6 00 h1posloc H1 Positive Edge Location E7 [5:0] 6 20 h1negloc H1 Negative Edge Location E8 [2:0] 3 03 h1drv H1 Drive Strength (0 = OFF, 1 = 3.5 mA, 2 = 7 mA, 3 = 10.5 mA, 4 = 14 mA, 5 = 17.5 mA, 6 = 21 mA, 7 = 24.5 mA) E9 [2:0] 3 03 h2drv H2 Drive Strength EA [2:0] 3 03 h3drv H3 Drive Strength EB [2:0] 3 03 h4drv H4 Drive Strength EC [0] 1 00 rgpol RG Polarity Control (0 = No Inversion, 1 = Inversion) ED [5:0] 6 00 rgposloc RG Positive Edge Location EE [5:0] 6 10 rgnegloc RG Negative Edge Location EF [2:0] 3 02 rgdrv RG Drive Strength (0 = OFF, 1 = 3.5 mA, 2 = 7 mA, 3 = 10.5 mA, 4 = 14 mA, 5 = 17.5 mA, 6 = 21 mA, 7 = 24.5 mA) F0 [5:0] 6 24 shpposloc SHP (Positive) Edge Sampling Location F1 [5:0] 6 00 shdposloc SHD (Positive) Edge Sampling Location |
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