The HMC985ALP4KE is an absorptive VoltageVariable Attenuator (VVA) which operates from 10- 40 GHz and is ideal in designs where an analogDC control signal must be used to control RF signallevels over a 35 dB dynamic range. It features twoshunt-type attenuators which are controlled by twoanalog voltages, Vctl1 and Vctl2. Optimum linearityperformance of the attenuator is achieved by firstvarying Vctl1 of the first attenuation stage from -5V to0V with Vctl2 fixed at -5V. The control voltage of thesecond attenuation stage, Vctl2, should then be variedfrom -5V to 0V with Vctl1 fixed at 0V.If the Vctl1 and Vctl2 pins are connected together it ispossible to achieve the full analog attenuation rangewith only a small degradation in input IP3 performance.Applications include AGC circuits and temperaturecompensation of multiple gain stages in microwavepoint-to-point and VSAT radios.Applications Point-to-Point Radio VSAT Radio Test Instrumentation Microwave Sensors Military, ECM & Radar

The AD74412R is a quad-channel software configurable input/output solution for building and process control applications. The AD74412R contains functionality for analog output, analog input, digital input, and resistance temperature detector (RTD) measurements integrated into a single chip solution with an interface compatible with the serial port interface (SPI).The device features a 16-bit, ?-? analog-to-digital converter (ADC) and four configurable, 13-bit digital-to-analog converters (DACs) to provide four configurable input/output channels and a suite of diagnostic functions.There are several modes related to the AD74412R. These modes are voltage output, current output, voltage input, externally powered current input, loop powered current input, external RTD measurement, digital input logic, and loop powered digital input.The AD74412R contains a high accuracy 2.5 V internal reference to drive the DACs and the ADC.Product Highlights Quad-Channel, Software Configurable Channels. Built In Diagnostics and Alert Features. Robust Architecture. Surge tested to ?1 kV, per the IEC61000-4-5 standard, on the input/output terminals with unshielded cables.?Applications? Building control systems Process control Industrial automation ?

The ADF41513 is an ultralow noise frequency synthesizer that can be used to implement local oscillators (LOs) as high as 26.5 GHz in the upconversion and downconversion sections of wireless receivers and transmitters.The ADF41513 is designed on a high performance silicon geranium (SiGe), bipolar complementary metal-oxide semiconductor (BiCMOS) process, achieving a normalized phase noise floor of ?235 dBc/Hz. The phase frequency detector (PFD) operates up to 250 MHz (integer N mode)/125 MHz (fractional-N mode) for improved phase noise and spur performance. The variable modulus, ?-? modulator allows extremely fine resolution when using a 49-bit divide value. The ADF41513 can be used as an integer N phase-locked loop (PLL), or it can be used as a fractional-N PLL with either a fixed modulus for subhertz frequency resolution or variable modulus for subhertz exact frequency resolution.A complete PLL is implemented when the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO). The 26.5 GHz bandwidth eliminates the need for a frequency doubler or divider stage, simplifying system architecture and reducing cost. The ADF41513 is packaged in a compact, 24-lead, 4 mm ? 4 mm LFCSPApplications Test equipment and instrumentation Wireless infrastructure Microwave point to point and multipoint radios Very small aperture terminal (VSAT) radios Aerospace and defense

The ADF4157 is a 6 GHz fractional-N frequency synthesizer with a 25-bit fixed modulus, allowing subhertz frequency resolution at 6 GHz. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a ?-? based fractional interpolator to allow programmable fractional-N division. The INT and FRAC values define an overall N divider, N = INT + (FRAC/225). The ADF4157 features cycle slip reduction circuitry, which leads to faster locktimes without the need for modifications to the loop filter.Control of all on-chip registers is via a simple 3-wire interface.The device operates with a power supply ranging from 2.7 V to3.3 V and can be powered down when not in use.ApplicationsSatellite communications terminals, radar equipmentInstrumentation equipmentPersonal mobile radio (PMR)Base stations for mobile radioWireless handsets

The ADF5356 allows implementation of fractional-N or integer Nphase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. Thewideband microwave VCO design permits frequency operationfrom 6.8 GHz to 13.6 GHz at one radio frequency (RF) output. A series of frequency dividers at another frequency output permitsoperation from 53.125 MHz to 6800 MHz. The ADF5356 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8,16, 32, or 64 circuits that allow the user to generate RF output frequencies as low as 53.125 MHz. For applications that requireisolation, the RF output stage can be muted. The mute functionis both pin- and software-controllable. Control of all on-chip registers is through a simple 3-wire interface.The ADF5356 operates with analog and digital power suppliesranging from 3.15 V to 3.45 V, with charge pump and VCOsupplies from 4.75 V to 5.25 V. The ADF5356 also containshardware and software power-down modes.Applications Wireless infrastructure (LTE, W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS) Point to point and point to multipoint microwave links Satellites and very small aperture terminals (VSATs) Test equipment and instrumentation Clock generation

The ADRF6658 is a high performance, low power, wideband, dual-channel radio frequency (RF) downconverter with integrated intermediate frequency (IF) digitally controlled amplifiers (DGAs) for wideband, low distortion base station radio receivers.The dual Rx mixers are doubly balanced Gilbert cell mixers with high linearity and excellent image rejection. Both mixers convert 50 ? RF inputs to open-collector broadband IF outputs. Internal tunable baluns on the RF inputs enable suppression of RF signal harmonics and attenuation of out-of-band signals before the mixer inputs, reducing input reflections and out-of-band interference signals. A flexible local oscillator (LO) architecture allows the use of differential or single-ended LO signals.The dual-channel IF DGAs are based on the ADL5201 and ADL5202 and have a fixed, differential output impedance of 100 ?. The gain is adjustable over a 31.5 dB range with a 0.5 dB step size via the on-chip SPI, or through independent, 6-bit parallel ports that support latch functionality. Each channel, from the mixer inputs to the IF amplifier outputs, together with an LC interstage band-pass filter, achieves a maximum voltage conversion gain of 26.5 dB.Fabricated with the Analog Devices, Inc., high speed SiGe process, the ADRF6658 is available in a compact, 7 mm ? 7 mm, 48-lead LFCSP package, and operates over the ?40?C to +105?C temperature range.APPLICATIONS Cellular base stations and wireless infrastructure receivers (W-CDMA, TD-SCDMA, WiMAX, GSM, LTE, PCS, DCS, DECT) Active antenna systems PTP radio link down converters Wireless LANs and CATV equipment

The ADuM7704 is a high performance, second-order, ?-? modulator that converts an analog input signal into a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler? technology. The device operates from a 4.5 V to 20 V power supply range (VDD1) and accepts a pseudo differential input signal of ?50 mV (?64 mV full-scale). The pseudo differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.The analog input is continuously sampled by a high performance analog modulator and converted to a ones density digital output stream with a data rate of up to 21 MHz. The original information can be reconstructed with an appropriate sinc3 digital filter to achieve an 82 dB signal-to-noise ratio (SNR) at 78.1 kSPS with a 256 decimation rate and a 20 MHz master clock. The serial input and output operates from a 5 V or a 3.3 V supply (VDD2).The serial interface is digitally isolated. High speed complementary metal-oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, results in the on-chip isolation providing outstanding performance characteristics, superior to alternatives such as optocoupler devices. The ADuM7704 is available in a 16-lead, wide-body SOIC_W with an operating temperature range of ?40?C to +125?C and an 8-lead, wide-body SOIC_IC with an operating temperature range of ?40?C to +105?C.APPLICATIONS Shunt current monitoring AC motor controls Power and solar inverters Wind turbine inverters Analog-to-digital and optoisolator replacement

The HMC1055 is a low cost, gallium arsenide (GaAs), single-pole,single-throw (SPST) switch in a surface-mount LFCSPpackage. This switch offers low insertion loss, high isolation,and exceptional third-order intermodulation performance thatmake it ideal for many cellular and wireless infrastructureapplications from 0.5 GHz to 4.0 GHz.The HMC1055 operates with single positive supply voltage anda single positive control voltage at very low dc currents. RF1 isreflective open, whereas RF2 is terminated to 50 ? in the offstate.APPLICATIONS Cellular infrastructure Wireless infrastructure Mobile radios Test equipment

The HMC1084?is a broadband reflective GaAs MESFET SP4T switch in a compact 4 ? 4 mm ceramic package. Covering 23 - 30 GHz, this switch offers high isolation and low insertion loss. The HMC1084 is controlled with 0/-3V logic, exhibits fast switching speed and consumes much less DC current than pin diode based solutions. With its compact form factor, the HMC1084 is ideal for microwave radio as well as SATCOM and sensor applications. The HMC1084 is housed in a leadless 4 ? 4 mm SMT package which is compatible with surface mount manufacturing techniques.APPLICATIONS Telecom Infrastructure Microwave Radio & VSAT Military & Space Hybrids Test Instrumentation SATCOM & Sensors

The HMC830LP6GE is a low noise, wideband, Fractional-N Phase-Locked-Loop (PLL) that features an integrated Voltage Controlled Oscillator (VCO) with a fundamental frequency of 1500 MHz - 3000 MHz, and an integrated VCO Output Divider (divide by 1/2/4/6.../60/62), that together allow the HMC830LP6GE to generate frequencies from 25 MHz to 3000 MHz. The integrated Phase Detector (PD) and delta-sigma modulator, capable of operating at up to 100 MHz, permit wider loop-bandwidths with excellent spectral performance.The HMC830LP6GE features industry leading phase noise and spurious performance, across all frequencies, that enable it to minimize blocker effects, and improve receiver sensitivity and transmitter spectral purity. Its superior performance makes it the ideal device for multi channel multi standard wide band transceivers. HMC830LP6GE can be used as an LO for RF mixers, a clock source for high-frequency data-converters, or a tunable reference source for ultra-low spurious applications.Additional features of the HMC830LP6GE include RF output power control from 0 to 9 dB (3 dB steps), output Mute function, and a delta-sigma modulator Exact Frequency Mode which enables users to generate output frequencies with 0 Hz frequency error.For theory of operation and register map refer to the 'PLLs with Integrated VCOs - RF VCOs Operating Guide' Operating Guide.Applications Cellular/4G Infrastructure Repeaters and Femtocells Communications Test Equipment CATV Equipment Phased Array Applications Very High Data Rate Radios Tunable Reference Source for Spurious- Free Performance