The AD9547 Rev. B dual/quad input network clock generator/synchronizer is a highly integrated clock generator capable of generating a single or dual differential output clock from any input reference frequency from 1 kHz to 750 MHz. The device supports automatic/manual holdover and reference switching, and provides up to 450 MHz of output clock frequency.
The AD9547 is a Dual/Quad Input Network Clock Generator/Synchronizer designed for network synchronization, SONET/SDH clocks, and wireless base stations. It supports Stratum 2 stability in holdover mode and allows for hitless reference switchover with phase build-out. The device generates a clean, valid output clock synchronized to external input references using a digital PLL.
| Operating Temperature Range | -40°C to +85°C |
|---|---|
| Input Reference Frequencies | 1 kHz to 750 MHz |
| Output Frequencies | up to 450 MHz |
| Package Type | 64-lead LFCSP |
| Supply Voltage (DVDD3) | 3.135 V to 3.465 V |
| Supply Voltage (DVDD) | 1.71 V to 1.89 V |
| Typical Power Dissipation | 800 mW |
The device operates over an industrial temperature range of -40°C to +85°C.
The device supports input reference frequencies from 1 kHz to 750 MHz.