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参数资料
| 型号： | MPC9992FAR2 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 400 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| 封装： | LQFP-32 |
| 文件页数： | 10/12页 |
| 文件大小： | 153K |
| 代理商： | MPC9992FAR2 |
MPC9992
TIMING SOLUTIONS
7
MOTOROLA
APPLICATIONS INFORMATION
SYNC Output Description
The MPC9992 has a system synchronization pulse output
QSYNC. In configurations with the output frequency
relationships are not integer multiples of each other QSYNC
provides a signal for system synchronization purposes. The
MPC9992 monitors the relationship between the A bank and
the B bank of outputs. The QSYNC output is asserted (logic
high) one QA period in duration. The placement of the pulse is
dependent on the QA and QB output frequencies ratio. Figure
3 shows the waveforms for the QSYNC output. The QSYNC
output is defined for all possible combinations of the bank A and
bank B outputs.
Figure 3. QSYNC Timing Diagram
Qa
2:1 Mode
Qb
QSYNC
Qa
3:1 Mode
Qb
QSYNC
Qa
3:2 Mode
Qb
QSYNC
5:2 Mode
Qa
Qb
QSYNC
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