Semtech ACS8514
Synchronous Equipment Timing Source Partner IC for 2nd T4 DPLL, Accurate Monitoring & Input Extender
The ACS8514 is an optional partner integrated circuit for applications using the ACS8520/30. It adds an additional BITS clock (T4 path) DPLL to a clock synchronization system, for applications needing two T4 paths.
Features
- Partner to the ACS8520 & ACS8530 for use in SONET Minimum Clock (SMC) or SONET/SDH Equipment Clock (SEC) applications, to provide :
- One Extra independent T4 path for those systems being designed to Figure 5-21 of Bellcore GR253[17],
- An additional DPLL for accurate phase, average phase, frequency and average frequency measuring of any clock source.
- Phase measurement accuracy to 0.7 degrees.
- Frequency measurement accuracy to 3x10(-10)
- Aids in enhancing Phase Build-out performance to absorb phase disturbances when switching between noisy input sources, via s/w control.
- Provides the facility to have long term frequency measuring and averaging for BOTH the main and any standby clock source so that the holdover frequency is always accurate for both main and standby clock selections.
- Accepts 14 individual input reference clocks, all with robust input clock source quality monitoring.
- Microprocessor interface - Intel, Motorola, Serial, Multiplexed, or boot from EPROM
- IEEE 1149.1[5] JTAG Boundary Scan
- Single 3.3 V operation. 5 V tolerant
- Lead (Pb)-free version available (ACS8514T), RoHS and WEEE compliant
Order Codes
- ACS8514T: Lead-Free, RoHS and WEEE Compliant
Order Samples
Semtech provides free samples to help design engineers qualify
their products and speed up time-to-market.
For samples, use our Samples Request Form. Up to five free samples
may be requested.
Purchase
Use our Sales Support tool to find your local Semtech sales office, distributor or manufacturer's representative.
To get a quote directly from Semtech use our online Quote Request Form.
Order Evaluation Boards
Semtech provides evaluation boards to help design engineers quickly and easily evaluate the performance of our devices for their application requirements.
To order, use our Evaluation Board Request Form here. One (1) free evaluation board may be requested per order form.
Eval boards are readily available for most of our new and popular products. If you wish to request boards for other parts, simply type the part number in the “Select Part Number” field space of the order form. These will be subject to availability.
|
