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参数资料
| 型号： | AD9517-3A/PCBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 71/80页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD9517-3A |
| 设计资源： | AD9517 Eval Brd Schematics AD9517 Gerber Files AD9517-3 BOM |
| 标准包装： | 1 |
| 主要目的： | 计时，时钟发生器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD9517-3A |
| 主要属性： | 2 输入，12 输出，2.0GHz VCO |
| 次要属性： | CMOS，LVPECL 和 LVDS 兼容 |
| 已供物品： | 板 |
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Data Sheet
AD9517-3
Rev. E | Page 73 of 80
Reg.
Addr.
(Hex)
Bits
Name
Description
0x197
4
Divider 1 start high
Selects clock output to start high or start low.
0: starts low (default).
1: starts high.
[3:0]
Divider 1 phase offset
Phase offset (default = 0x0).
0x198
1
Divider 1 direct to output
Connects OUT2 and OUT3 to Divider 2 or directly to VCO or CLK.
0: OUT2 and OUT3 are connected to Divider 1 (default).
1: If Register 0x1E1[1:0] = 10b, the VCO is routed directly to OUT2 and OUT3.
If Register 0x1E1[1:0] = 00b, the CLK is routed directly to OUT2 and OUT3.
If Register 0x1E1[1:0] = 01b, there is no effect.
0
Divider 1 DCCOFF
Duty-cycle correction function.
0: enables duty-cycle correction (default).
1: disables duty-cycle correction.
Table 59. LVDS/CMOS Channel Dividers
Reg.
Addr.
(Hex)
Bits
Name
Description
0x199
[7:4]
Low Cycles Divider 2.1
Number of clock cycles (minus 1) of 2.1 divider input during which 2.1 output stays low.
A value of 0x0 means that the divider is low for one input clock cycle (default = 0x0).
[3:0]
High Cycles Divider 2.1
Number of clock cycles (minus 1) of 2.1 divider input during which 2.1 output stays high.
A value of 0x0 means that the divider is high for one input clock cycle (default = 0x0).
0x19A
[7:4]
Phase Offset Divider 2.2
Refer to LVDS/CMOS channel divider function description (default = 0x0).
[3:0]
Phase Offset Divider 2.1
Refer to LVDS/CMOS channel divider function description (default = 0x0).
0x19B
[7:4]
Low Cycles Divider 2.2
Number of clock cycles (minus 1) of 2.2 divider input during which 2.2 output stays low.
A value of 0x0 means that the divider is low for one input clock cycle (default = 0x0).
[3:0]
High Cycles Divider 2.2
Number of clock cycles (minus 1)of 2.2 divider input during which 2.2 output stays high.
A value of 0x0 means that the divider is high for one input clock cycle (default = 0x0).
0x19C
5
Bypass Divider 2.2
Bypasses (and powers down) 2.2 divider logic, routes clock to 2.2 output.
0: does not bypass (default).
1: bypasses.
4
Bypass Divider 2.1
Bypasses (and powers down) 2.1 divider logic, routes clock to 2.1 output.
0: does not bypass (default).
1: bypasses.
3
Divider 2 nosync
No sync.
0: obeys chip-level SYNC signal (default).
1: ignores chip-level SYNC signal.
2
Divider 2 force high
Forces Divider 2 output high. Requires that nosync also be set.
0: forces low (default).
1: forces high.
1
Start High Divider 2.2
Divider 2.2 start high/low.
0: starts low (default).
1: starts high.
0
Start High Divider 2.1
Divider 2.1 start high/low.
0: starts low (default).
1: starts high.
0x19D
0
Divider 2 DCCOFF
Duty-cycle correction function.
0: enables duty-cycle correction (default).
1: disables duty-cycle correction.
0x19E
[7:4]
Low Cycles Divider 3.1
Number of clock cycles (minus 1) of 3.1 divider input during which 3.1 output stays low.
A value of 0x0 means that the divider is low for one input clock cycle (default = 0x0).
[3:0]
High Cycles Divider 3.1
Number of clock cycles (minus 1) of 3.1 divider input during which 3.1 output stays high.
A value of 0x0 means that the divider is high for one input clock cycle (default = 0x0).
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