AD9522-2 Analog Devices, Inc., AD9522-2 Datasheet - Page 77
AD9522-2
Manufacturer Part Number
AD9522-2
Description
12 Lvds/24 Cmos Output Clock Generator With Integrated 2.2 Ghz Vco
Manufacturer
Analog Devices, Inc.
Datasheet
1.AD9522-2.pdf
(84 pages)
- Current page: 77 of 84
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Reg.
Addr
(Hex) Bit(s) Name
198
198
199
199
19A
19A
19A
19A
19A
19B
19B
Reg.
Addr
(Hex) Bit(s) Name
1E0
1E1
Table 55. VCO Divider and CLK Input
[2:0]
[4]
[2]
[0]
[7:4]
[3:0]
[7]
[6]
[5]
[4]
[3:0]
[2]
[0]
VCO divider
Power-down clock input section Powers down the clock input section (including CLK buffer, VCO divider, and CLK tree).
Channel 2 power-down
Disable Divider 2 DCC
Divider 3 low cycles
Divider 3 high cycles
Divider 3 bypass
Divider 3 ignore SYNC
Divider 3 force high
Divider 3 start high
Divider 3 phase offset
Channel 3 power-down
Disable Divider 3 DCC
Description
Channel 2 powers down.
[2] = 0; normal operation (default).
[2] = 1; powered down. (OUT6/OUT6, OUT7/OUT7, and OUT8/OUT8 are put into the high
impedance power-down mode by setting this bit.)
Duty-cycle correction function.
[0] = 0; enable duty-cycle correction (default).
[0] = 1; disable duty-cycle correction.
Number of clock cycles (minus 1) of the divider input during which the divider output stays
low. A value of 0x0 means the divider is low for one input clock cycle (default: 0x0).
Number of clock cycles (minus 1) of the divider input during which the divider output stays
high. A value of 0x0 means the divider is high for one input clock cycle (default: 0x0).
Bypasses and powers down the divider; routes input to divider output.
[7] = 0; use divider (default).
[7] = 1; bypass divider.
Ignore SYNC.
[6] = 0; obey chip-level SYNC signal (default).
[6] = 1; ignore chip-level SYNC signal.
Forces divider output to high. This requires that ignore SYNC also be set.
[5] = 0; divider output forced to low (default).
[5] = 1; divider output forced to high.
Selects clock output to start high or start low.
[4] = 0; start low (default).
[4] = 1; start high.
Phase offset (default: 0x0).
Channel 3 powers down.
[2] = 0; normal operation (default).
[2] = 1; powered down. (OUT9/OUT9, OUT10/OUT10, and OUT11/OUT11 are put into the high
impedance power-down mode by setting this bit.)
Duty-cycle correction function.
[0] = 0; enable duty-cycle correction (default).
[0] = 1; disable duty-cycle correction.
Description
[2]
0
0
0
0
1
1
1
1
[4] = 0; normal operation (default).
[4] = 1; power down.
Rev. 0 | Page 77 of 84
[1]
0
0
1
1
0
0
1
1
[0]
0
1
0
1
0
1
0
1
Divide
2 (default)
3
4
5
6
Output static
1 (bypass)
Output static
AD9522-2
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