Features and Benefits
Product DetailsThe AD9547 provides synchronization for many systems, including synchronous optical networks (SONET/SDH). The AD9547 generates an output clock that is synchronized to one of two differential or four single-ended external input references. The digital PLL allows for reduction of input time jitter or phase noise associated with the external references. The AD9547 con-tinuously generates a clean (low jitter), valid output clock, even when all references fail, by means of digitally controlled loop and holdover circuitry.
The AD9547 operates over an industrial temperature range of −40°C to +85°C.
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The AD9547 is a very low noise DDS-based digital PLL clock synthesizer with up to four reference inputs and up to four outputs. The AD9547 features reference clock validation, automatic holdover, and hitless reference clock switching. The AD9547 is capable of accepting reference input clocks as low as 1 kHz. The AD9547 Revision A evaluation board is a compact, easy-to use platform for evaluating all features of the AD9547.
Features & Benefits
- Simple power connection using 6 V wall adapter and onboard switching and LDO voltage regulators
- Regulators easily bypassed for power measurements
- 8 ac-coupled SMA connectors for output
- SMA connectors for
2 differential or 4 single-ended reference input
System clock input
- On-board provisions for OCXO, crystal oscillator, or crystal
- USB connection to PC
- 32-bit or 64-bit Windows-based evaluation software with simple graphical user interface
- On-board PLL loop filter
- Easy access to digital I/O and diagnostic signals via I/O header
- Status LEDs for diagnostic sig
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.