The ADF41020 frequency synthesizer can be used to implement local oscillators as high as 18 GHz in the up conversion and down conversion sections of wireless receivers and transmitters. It consists of a low noise, digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, and high frequency programmable feedback dividers (A, B, and P). A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO). The synthesizer can be used to drive external microwave VCOs via an active loop filter. Its very high bandwidth means a frequency doubler stage can be eliminated, simplifying system architecture and reducing cost. The ADF41020 is software-compatible with the existing ADF4106/ADF4107/ADF4108 family of devices from Analog Devices, Inc. Their pinouts match very closely with the exception of the ADF41020’s single-ended RF input pin, meaning only a minor layout change is required when updating current designs.Applications Microwave point-to-point/multipoint radios Wireless infrastructure VSAT radios Test equipment Instrumentation

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

The AD9522-51 provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL that can be used with an external VCO.   The AD9522 serial interface supports both SPI and I2C® ports. An in-package EEPROM can be programmed through the serial interface and store user-defined register settings for power-up and chip reset.The AD9522 features 12 LVDS outputs in four groups. Any of the 800 MHz LVDS outputs can be reconfigured as two 250 MHz CMOS outputs.Each group of outputs has a divider that allows both the divide ratio (from 1 to 32) and the phase (coarse delay) to be set.The AD9522 is available in a 64-lead LFCSP and can be operated from a single 3.3 V supply. The external VCO can have an operating voltage up to 5.5 V.The AD9522 is specified for operation over the standard industrial range of −40°C to +85°C.The AD9520-5 is an equivalent part to the AD9522-5 featuring LVPECL/CMOS drivers instead of LVDS/CMOS drivers.1The AD9522 is used throughout this data sheet to refer to all the members of the AD9522 family. However, when AD9522-5 is used, it is referring to that specific member of the AD9522 family.ApplicationsLow jitter, low phase noise clock distributionClock generation and translation for SONET, 10Ge, 10G FC, and other 10 Gbps protocolsForward error correction (G.710)Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEsHigh performance wireless transceiversATE and high performance instrumentationBroadband infrastructures

The LTC6951 is a high performance, low noise, Phase Locked Loop (PLL) with a fully integrated VCO. The low noise VCO uses no external components and is internally calibrated to the correct output frequency with no external system support.The clock generation section provides five outputs based on the VCO prescaler signal with individual dividers for each output. Four outputs feature very low noise, low skew CML logic. The fifth output is low noise LVDS. All outputs can be synchronized and set to precise phase alignment using the programmable delays.Choose the LTC6951-1 if any desired output frequency falls in the ranges 2.5GHz to 2.7GHz, 1.66GHz to 1.8GHz, or 1.25GHz to 1.35GHz. Choose the LTC6951 for all other frequencies.Applications High Performance Data Converter Clocking Wireless Infrastructure Test and Measurement

Microwave Wideband Synthesizer with Integrated VCO Features: Output frequency range: 800 MHz to 12.8 GHz Jitter = 18 fsRMS (Integration BW: 100 Hz to 100 MHz) Jitter = 27 fsRMS (ADC SNR Method) Wideband Noise Floor: -160 dBc/Hz @12 GHz PLL Specifications: -239 dBc/Hz: Normalized In-Band Phase Noise Floor -147 dBc/Hz: Normalized In-Band 1/f Noise Phase Detector Frequency up to 500 MHzReference Input Frequency up to 1 GHz Typical -100 dBc PFD spursReference to Output Delay Specifications: Part-to-Part Standard Deviation: 3 ps Temperature Drift: 0.03 ps/ Adjustment Step Size: <+/-0.1 ps Multi-chip Output Phase Alignment 3.3 V and 5 V Power supplies 7 mm x 7 mm 48 Lead LGA

Low Phase Noise, Triple Output Clock Distribution Divider/Driver Features: Low Noise Clock Distribution: Suitable for High Speed/High Resolution ADC Clocking Additive Jitter < 20fsRMS (12kHz to 20MHz) Additive Jitter < 85fsRMS (10Hz to Nyquist) 1.8GHz Maximum Input Frequency (LTC6954-1 When DELAY = 0) 1.4GHz Maximum Input Frequency (LTC6954-1 When DELAY > 0, LTC6954-2, -3, -4) EZSync™ Clock Synchronization Compatible Three Independent, Low Noise Outputs Four Output Combinations Available Three Independent Programmable Dividers Covering All Integers From 1 to 63 Three Independent Programmable Delays Covering All Integers From 0 to 63 –40°C to 105°C Junction Temperature Range

The HMC512LP5(E) is a GaAs InGaP Herterojunction Bipolar Transistor (HBT) MMIC VCOs. The HMC512LP5(E) integrates resonators, negative resistance devices, varactor diodes and feature half frequency and divide-by-4 outputs. The VCO's phase noise performance is excellent over temperature, shock and process due to the oscillator's monolithic structure. Power output is +9 dBm typical from a +5V supply voltage. The prescaler and RF/2 functions can be disabled to conserve current if not required. The voltage cont-rolled oscillator is packaged in a leadless QFN 5x5 mm surface mount package, and requires no external matching components.APPLICATIONS Point-to-Point Radios  Point-to-Multi-Point Radios Test Equipment & Industrial Controls  SATCOM Military End-Use

The HMC513LP5(E) is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs. The HMC513LP5(E) integrates resonators, negative resistance devices, varactor diodes and feature half frequency and divide-by- 4 outputs. The VCO’s phase noise performance is excellent over temperature, shock, and process due to the oscillator’s monolithic structure. Power output is +7 dBm typical from a +3V supply voltage. The prescaler function can be disabled to conserve current if not required. The voltage controlled oscillator is packaged in a leadless QFN 5×5 mm surface mount package, and requires no external matching components.APPLICATIONS VSAT Radio Point-to-Point/Multi-Point Radio  Test Equipment & Industrial Controls  Military End-Use

The HMC515LP5(E) is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCO. The HMC515LP5(E) integrates resonators, negative resistance devices, varactor diodes and feature half frequency and divide-by-4 outputs. The VCO’s phase noise performance is excellent over temperature, shock, and process due to the oscillator’s monolithic structure. Power output is +10 dBm typical from a +5V supply voltage. The prescaler function can be disabled to conserve current if not required. The voltage controlled oscillator is packaged in a leadless QFN 5x5 mm surface mount package, and requires no external matching components.APPLICATIONS VSAT Radio  Point-to-Point/Multi-Point Radio  Test Equipment & Industrial Controls  Military End-Use