AD9551/PCBZ, Evaluation Board for Evaluating the AD9551 Multiservice Clock Generator
Reference design by: Analog Devices
AD9551/PCBZ, Evaluation Board is a compact, easy to use platform for evaluating all features of the AD9551 multiservice clock generator. The AD9551 accepts one or two reference input signals to synthesize one or two output signals. The AD9551 uses a fractional-N PLL that precisely translates the reference frequency to the desired output frequency. The input receivers and output drivers provide both single-ended and differential operation. Reference conditioning and switchover circuitry internally synchronizes the two references so that if one reference fails, there is virtually no phase perturbation at the output. The AD9551 uses an external crystal and an internal DCXO to provide for holdover operation