The AD9557 is a low loop bandwidth clock multiplier that provides jitter cleanup and synchronization for many systems, including synchronous optical networks (OTN/SONET/SDH). The AD9557 generates an output clock synchronized to up to four external input references. The digital PLL allows for reduction of input time jitter or phase noise associated with the external references. The digitally controlled loop and holdover circuitry of the AD9557 continuously generates a low jitter output clock even when all reference inputs have failed.The AD9557 operates over an industrial temperature range of −40°C to +85°C. If more inputs/outputs are needed, refer to the AD9558 for the four-input/six-output version of the samedevice.Applications Network synchronization, including synchronous Ethernet and SDH to OTN mapping/demapping Cleanup of reference clock jitter SONET/SDH/OTN clocks up to 100 Gbps, including FEC Stratum 3 holdover, jitter cleanup, and phase transient control Wireless base station controllers Cable infrastructure Data communications

The AD9837 is a low power, programmable waveform generatorcapable of producing sine, triangular, and square wave outputs.Waveform generation is required in various types of sensing,actuation, and time domain reflectometry (TDR) applications. The outputfrequency and phase are software programmable, allowing easytuning. The frequency registers are 28 bits: with a 16 MHz clock rate, resolution of 0.06 Hz can be achieved; with a 5 MHz clock rate, the AD9837can be tuned to 0.02 Hz resolution.The AD9837 is written to via a 3-wire serial interface. This serialinterface operates at clock rates up to 40 MHz and is compatiblewith DSP and microcontroller standards. The device operateswith a power supply from 2.3 V to 5.5 V.The AD9837 has a power-down (SLEEP) function. Sections of the device that are not being used can be powered down to minimize the current consumption of the part. For example, the DAC can be powered down when a clock output is being generated.The AD9837 is available in a 10-lead LFCSP_WD package.APPLICATIONS Frequency stimulus/waveform generation Liquid and gas flow measurement Sensory applications: proximity, motion, and defect detection Line loss/attenuation Test and medical equipment Sweep/clock generators Time domain reflectometry (TDR) applications

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EVAL KIT, VOLTAGE CONTROLLED OSCILLATOR;

Delay Lines/Timing Elements Broadband Analog Time Delay to 24 GHz

Real Time Clock

Delay Line IC Nonprogrammable 5 Tap 500ns 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Timers & Support Products Low-Power General Purpose Timer

Timers & Support Products Low-Power General Purpose Timer

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