AD9516-3 Analog Devices, AD9516-3 Datasheet - Page 65
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AD9516-3
Manufacturer Part Number
AD9516-3
Description
14-Output Clock Generator
Manufacturer
Analog Devices
Datasheet
1.AD9516-3.pdf
(84 pages)
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Reg.
Addr
(Hex) Bit(s) Name
1B
1B
1B
1B
<7>
<6>
<5>
<4:0> REFMON Pin Select the signal that is connected to the REFMON pin.
VCO
Frequency
Monitor
REF2 (REFIN) Enable or disable REF2 frequency monitor.
Frequency
Monitor
REF1 (REFIN)
Frequency
Monitor
Control
<5> <4> <3>
1
1
1
1
1
1
1
1
1
1
<7> = 0; disable VCO frequency monitor.
<6> = 0; disable REF2 frequency monitor.
REF1 (REFIN) frequency monitor enable; this is for both REF1 (single-ended) and REFIN (differential) inputs
(as selected by differential reference mode).
<5> = 1; enable REF1 (REFIN) frequency monitor.
<4> <3> <2>
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
Description
Enable or disable VCO frequency monitor.
<7> = 1; enable VCO frequency monitor.
<6> = 1; enable REF2 frequency monitor.
<5> = 0; disable REF1 (REFIN) frequency monitor.
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
0
0
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
<2>
1
1
0
0
0
0
1
1
1
1
<1>
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
<0>
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
<1> <0>
1
1
0
0
1
1
0
0
1
1
Level or
Dynamic
Signal
LVL
DYN
DYN
DYN
DYN
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
DYN
DYN
DYN
0
1
0
1
0
1
0
1
0
1
Rev. 0 | Page 65 of 84
Level or
Dynamic
Signal
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
Signal at REFMON Pin
Ground (dc).
REF1 clock (differential reference when in differential mode).
REF2 clock (N/A in differential mode).
Selected reference to PLL (differential reference when in differential
mode).
Unselected reference to PLL (not available in differential mode).
Status of selected reference (status of differential reference);
active high.
Status of unselected reference (not available in differential mode);
active high.
Status REF1 frequency (active high).
Status REF2 frequency (active high).
(Status REF1 frequency) AND (status REF2 frequency).
(DLD) AND (status of selected reference) AND (status of VCO).
Status of VCO frequency (active high).
Selected reference (low = REF1, high = REF2).
Digital lock detect (DLD); active low.
Holdover active (active high).
LD pin comparator output (active high).
VS (PLL supply).
REF1 clock (differential reference when in differential mode).
REF2 clock (not available in differential mode).
Selected reference to PLL (differential reference when in
differential mode).
Signal at LD Pin
Status of unselected reference (not available in differential
mode); active low.
Status of REF1 frequency (active low).
Status of REF2 frequency (active low).
(Status of REF1 frequency) AND (Status of REF2 frequency) .
(DLD) AND (Status of selected reference) AND (Status of VCO) .
Status of VCO frequency (active low).
Selected reference (low = REF2, high = REF1).
Digital lock detect (DLD); active low.
Holdover active (active low).
N/A—do not use.
AD9516-3