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AD9517-1A/PCBZ Datenblatt(PDF) 61 Page - Analog Devices |
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AD9517-1A/PCBZ Datenblatt(HTML) 61 Page - Analog Devices |
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61 / 80 page ![]() Data Sheet AD9517-1 Rev. E | Page 61 of 80 Reg. Addr. (Hex) Bits Name Description 0x016 [2:0] Prescaler P Prescaler: DM = dual modulus and FD = fixed divide. 2 1 0 Mode Prescaler 0 0 0 FD Divide-by-1. 0 0 1 FD Divide-by-2. 0 1 0 DM Divide-by-2 (2/3 mode). 0 1 1 DM Divide-by-4 (4/5 mode). 1 0 0 DM Divide-by-8 (8/9 mode). 1 0 1 DM Divide-by-16 (16/17 mode). 1 1 0 DM Divide-by-32 (32/33 mode) (default). 1 1 1 FD Divide-by-3. 0x017 [7:2] STATUS pin Selects the signal that is connected to the STATUS pin. control 7 6 5 4 3 2 Level or Dynamic Signal Signal at STATUS Pin 0 0 0 0 0 0 LVL Ground (dc) (default). 0 0 0 0 0 1 DYN N divider output (after the delay). 0 0 0 0 1 0 DYN R divider output (after the delay). 0 0 0 0 1 1 DYN A divider output. 0 0 0 1 0 0 DYN Prescaler output. 0 0 0 1 0 1 DYN PFD up pulse. 0 0 0 1 1 0 DYN PFD down pulse. 0 X X X X X LVL Ground (dc); for all other cases of 0XXXXXb not specified above. The selections that follow are the same as REFMON. 1 0 0 0 0 0 LVL Ground (dc). 1 0 0 0 0 1 DYN REF1 clock (differential reference when in differential mode). 1 0 0 0 1 0 DYN REF2 clock (not available in differential mode). 1 0 0 0 1 1 DYN Selected reference to PLL (differential reference when in differential mode). 1 0 0 1 0 0 DYN Unselected reference to PLL (not available in differential mode). 1 0 0 1 0 1 LVL Status of selected reference (status of differential reference); active high. 1 0 0 1 1 0 LVL Status of unselected reference (not available in differential mode); active high. 1 0 0 1 1 1 LVL Status REF1 frequency (active high). 1 0 1 0 0 0 LVL Status REF2 frequency (active high). 1 0 1 0 0 1 LVL (Status REF1 frequency) AND (status REF2 frequency). 1 0 1 0 1 0 LVL (DLD) AND (status of selected reference) AND (status of VCO). 1 0 1 0 1 1 LVL Status of VCO frequency (active high). 1 0 1 1 0 0 LVL Selected reference (low = REF1, high = REF2). 1 0 1 1 0 1 LVL Digital lock detect (DLD); active high. 1 0 1 1 1 0 LVL Holdover active (active high). 1 0 1 1 1 1 LVL LD pin comparator output (active high). 1 1 0 0 0 0 LVL VS (PLL supply). 1 1 0 0 0 1 DYN REF1 clock (differential reference when in differential mode). 1 1 0 0 1 0 DYN REF2 clock (not available in differential mode). 1 1 0 0 1 1 DYN Selected reference to PLL (differential reference when in differential mode). 1 1 0 1 0 0 DYN Unselected reference to PLL (not available when in differential mode). 1 1 0 1 0 1 LVL Status of selected reference (status of differential reference); active low. 1 1 0 1 1 0 LVL Status of unselected reference (not available in differential mode); active low. 1 1 0 1 1 1 LVL Status of REF1 frequency (active low). 1 1 1 0 0 0 LVL Status of REF2 frequency (active low). 1 1 1 0 0 1 LVL (Status of REF1 frequency) AND (status of REF2 frequency). 1 1 1 0 1 0 LVL (DLD) AND (status of selected reference) AND (status of VCO). 1 1 1 0 1 1 LVL Status of VCO frequency (active low). 1 1 1 1 0 0 LVL Selected reference (low = REF2, high = REF1). 1 1 1 1 0 1 LVL Digital lock detect (DLD) (active low). 1 1 1 1 1 0 LVL Holdover active (active low). 1 1 1 1 1 1 LVL LD pin comparator output (active low). |
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