The HMC1165 is a monolithic microwave integrated circuit (MMIC), voltage controlled oscillator (VCO) that integrates a resonator, a negative resistance device, and a varactor diode, and features a half frequency output. Because of the monolithic construction of the oscillator, the output power and phase noise performance are excellent over temperature.The output power is 8 dBm typical from a 5 V supply voltage. The VCO is housed in a RoHS-compliant LFCSP and requires no external matching components.Applications Point to point and multipoint radios  Test equipment and industrial controls  Very small aperture terminals (VSATs) 

The HMC4069LP4E is an Integer-N synthesizer which incorporates a 10 to 1300MHz digital phase-frequency detectorwith a 10 to 2900MHz 5-bit frequency counter. It is intended for use in low phase noise synthesizer applications.The combination of high frequency of operation along with its ultra low phase noise floor make possible synthesizerswith wide loop bandwidth and low N resulting in fast switching and very low phase noise. When used in conjunctionwith a differential loop amplifier, the HMC4069LP4E generates output voltages that can be used to phase lock a VCOto a reference oscillator.The device is packaged in a 24-pin, 4 x 4mm leadless QFN surface mount package with an exposed ground paddlefor improved RF and thermal performance.Applications Point-to-point radios Satellite communication systems Military applications Sonet clock generation

The ADA4350 is an analog front end for photodetectors or othersensors whose output produces a current proportional to thesensed parameter or voltage input applications where the systemrequires the user to select between very precise gain levels tomaximize the dynamic range.The ADA4350 integrates a FET input amplifier, a switching network,and an ADC driver with all functions controllable via a serialperipheral interface (SPI) or parallel control logic into a singleIC. The FET input amplifier has very low voltage noise and currentnoise making it an excellent choice to work with a wide range ofphotodetectors, sensors, or precision data acquisition systems.Its switching network allows the user individual selection of upto six different, externally configurable feedback networks; byusing external components for the feedback network, the usercan more easily match the system to their desired photodetector orsensor capacitance. This feature also allows the use of low thermaldrift resistors, if required.The design of the switches minimizes error sources so that theyadd virtually no error in the signal path. The output driver canbe used in either single-ended or a differential mode and isideal for driving the input of an ADC.The ADA4350 can operate from a single +3.3 V supply or a dual±5 V supply, offering user flexibility when choosing the polarity ofthe detector. It is available in a Pb-free, 28-lead TSSOP package andis specified to operate over the −40°C to +85°C temperature range.Multifunction pin names may be referenced by their relevantfunction only.Applications Current to voltage (I to V) conversions Photodiode preamplifiers Chemical analyzers Mass spectrometry Molecular spectroscopy Laser/LED receivers Data acquisition systems

The ADAR7251 is a 16-bit, 4-channel, simultaneous sampling analog-to-digital converter (ADC) designed especially for applications such as automotive LSR-FMCW or FSK-FMCW radar systems. Each of the four channels contains a low noise amplifier (LNA), a programmable gain amplifier (PGA), an equalizer, a multibit Σ-Δ ADC, and a decimation filter.The front-end circuitry is designed to allow direct connection to an MMIC output with few external passive components. The ADAR7251 eliminates the need for a high order antialiasing filter, driver op amps, and external bipolar supplies. The ADAR7251 also offers precise channel-to-channel drift matching.The ADAR7251 features an on-chip phase-locked loop (PLL) that allows a range of clock frequencies for flexibility in the system. The CONV_START input and DATA_READY output signals synchronize the ADC with an external ramp for applications such as FSK-FMCW radar.The ADAR7251 supports serial and parallel interfaces at programmable sample rates from 300 kSPS to 1.8 MSPS, as well as easy connections to digital signal processors (DSPs) and microcontroller units (MCUs) in the system.APPLICATIONS Automotive LSR systems Data acquisition systems

The HMC1122 is a 6-bit digital attenuator operating from 0.1 GHz to 6 GHz with a 31.5 dB attenuation control range in 0.5 dB steps.The HMC1122 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.The HMC1122 operates on a single supply ranging from 3.3 V to 5 V with no performance change due to an on-chip regulator.The device incorporates a driver that provides both serial and parallel control of the attenuator. The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.The HMC1122 comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package, and is pin compatible to the HMC624A.A fully populated evaluation board is available. Applications Cellular infrastructure Microwave radios and very small aperture terminals (VSATs) Test equipment and sensors IF and RF designs

The HMC6505A is a compact gallium arsenide (GaAs),pseudomorphic (pHEMT), monolithic microwave integratedcircuit (MMIC) upconverter in a RoHS compliant package thatoperates from 5.5 GHz to 8.6 GHz. This device provides a smallsignal conversion gain of 15 dB with 22 dBc of sidebandrejection. The HMC6505A uses a variable gain amplifier (VGA)preceded by an in-phase and quadrature (I/Q) mixer that isdriven by an active local oscillator (LO). The IF1 and IF2 mixerinputs are provided, and an external 90° hybrid is needed toselect the required sideband. The I/Q mixer topology reducesthe need for filtering of unwanted sideband. The HMC6505Ais a smaller alternative to hybrid style single sideband (SSB)upconverter assemblies, and it eliminates the need for wirebonding by allowing the use of surface-mount manufacturingtechniques.The HMC6505A is available in 5 mm × 5 mm, 32-terminalleadless chip carrier (LCC) package and operates over a −40°Cto +85°C temperature range. An evaluation board for theHMC6505A is also available upon request. Applications Point to point and point to multipoint radios Military radars, electronic warfare (EW), and electronic intelligence (ELINT) Satellite communications Sensors

The HMC7911 is a compact gallium arsenide (GaAs), pseudomorphic(pHEMT), monolithic microwave integrated circuit(MMIC) upconverter in a RoHS compliant, low stress, injectionmolded plastic LFCSP package that operates from 17 GHz to20 GHz. This device provides a small signal conversion gain of18 dB with 30 dBc of sideband rejection. The HMC7911 uses avariable gain amplifier preceded by an in-phase/quadrature (I/Q)mixer that is driven by an active 2× local oscillator (LO) multiplier.IF1 and IF2 mixer inputs are provided, and an external 90° hybridis needed to select the required sideband. The I/Q mixer topologyreduces the need for filtering of the unwanted sideband. TheHMC7911 is a much smaller alternative to hybrid style singlesideband (SSB) upconverter assemblies, and it eliminates theneed for wire bonding by allowing the use of surface-mountmanufacturing techniques.Applications Point to point and point to multipoint radios Military radars, electronic warfare (EW), and electronic intelligence (ELINT) Satellite communications Sensors

The HMC7950 is a gallium arsenide (GaAs), pseudomorphic high electron mobility transistor (pHEMT), monolithic microwave integrated circuit (MMIC). The HMC7950 is a wideband low noise amplifier that operates between 2 GHz and 28 GHz. The amplifier typically provides 15 dB of gain, 2.0 dB of noise figure, 26 dBm of output IP3, and 16 dBm of output power for 1 dB gain compression, requiring 64 mA from a 5 V supply. The HMC7950 is self biased with only a single positive supply needed to achieve a drain current, IDD, of 64 mA. The HMC7950 also has a gain control option, VGG2. The HMC7950 amplifier input/outputs are internally matched to 50 Ω and dc blocked. It comes in a 6 mm × 6 mm, 16-terminal LCC SMT ceramic package that is easy to handle and assemble.APPLICATIONS Test instrumentation Military and space

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