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| 型号： | AD9549A/PCBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 62/76页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD9549A |
| 设计资源： | AD9549 Schematics AD9549 Gerber Files |
| 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： | AD9549A |
| 主要属性： | 8 kHz ~ 750 MHz 输入 |
| 次要属性： | 差分输出 |
| 已供物品： | 板 |
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AD9549
Rev. D | Page 65 of 76
Register 0x0305—IRQ Mask (Continued)
Table 77.
Bits
Bit Name
Description
4
Frequency estimator done
Trigger IRQ when the frequency estimator is done.
3
Phase unlock
Trigger IRQ on falling edge of phase lock signal.
2
Phase lock
Trigger IRQ on rising edge of phase lock signal.
1
Frequency unlock
Trigger IRQ on falling edge of frequency lock signal.
0
Frequency lock
Trigger IRQ on rising edge of frequency lock signal.
Register 0x0306—IRQ Mask (Continued)
Table 78.
Bits
Bit Name
Description
[7:6]
Reserved
Reserved.
5
REFA valid
Trigger IRQ on rising edge of Reference A’s valid.
4
!REFA valid
Trigger IRQ on falling edge of Reference A’s valid.
3
REFA LOR
Trigger IRQ on rising edge of Reference A’s LOR.
2
!REFA LOR
Trigger IRQ on falling edge of Reference A’s LOR.
1
REFA OOL
Trigger IRQ on rising edge of Reference A’s OOL.
0
!REFA OOL
Trigger IRQ on falling edge of Reference A’s OOL.
Register 0x0307—IRQ Mask (Continued)
Table 79.
Bits
Bit Name
Description
[7:6]
Reserved
Reserved.
5
REFB valid
Trigger IRQ on rising edge of Reference B’s valid.
4
!REFB valid
Trigger IRQ on falling edge of Reference B’s valid.
3
REFB LOR
Trigger IRQ on rising edge of Reference B’s LOR.
2
!REFB LOR
Trigger IRQ on falling edge of Reference B’s LOR.
1
REFB OOL
Trigger IRQ on rising edge of Reference B’s OOL.
0
!REFB OOL
Trigger IRQ on falling edge of Reference B’s OOL.
Register0x0308—S1 Pin Configuration
See the Status and Warnings section. The choice of input for a given pin must be all REFA or all REFB and not a combination of both.
Table 80.
Bits
Bit Name
Description
7
REF?
Choose either REFA (0) or REFB (1) for use with Bits [4:6].
6
REF? LOR
Select either REFA (0) or REFB (1) LOR signal for output on this pin.
5
REF? OOL
Select either REFA (0) or REFB (1) OOL signal for output on this pin.
4
REF? not valid
Select either REFA (0) or REFB (1). Not Valid signal for output on this pin.
3
Phase lock
Select phase lock signal for output on this pin.
2
Frequency lock
Select frequency lock signal for output on this pin.
1
Reserved
Reserved.
0
IRQ
Select IRQ signal for output on this pin.
Register 0x0309—S2 Pin Configuration
Same as Register 0x0308, except applies to Pin S2. See Table 80.
Register 0x030A—S3 Pin Configuration
Same as Register 0x0308, except applies to Pin S3. See Table 80.
Register 0x030B—S4 Pin Configuration
Same as Register 0x0308, except applies to Pin S4. See Table 80.
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