The HMC698LP5(E) is a frequency synthesizer with a wideband reversible polarity digital PFD and lock detect output. The divider operates unconditionally from 80 - 7000 MHz with a continuous integer division ratio of 12 to 259. The HMC698LP5(E) high frequency operation along with ultra low phase noise floor make possible synthesizers with wide loop bandwidth and low N resulting in fast settling and very low phase noise. When used in conjunction with a differential loop filter, the HMC698LP5(E) can be used to phase lock a VCO to a reference oscillator.Applications Satellite Communication Systems Point-to-Point Radios Military Applications Sonet Clock Generation

The HMC959LC3 is a Divide-by-4 with Reset designed to support clock frequencies as high as 26 GHz. During normal operation, with the reset pin not asserted, the output toggles from its prior state on the positive edge of the clock. This results in a divide-by-four function of the clock input. Asserting the reset pin forces the Q output low regardless of the clock edge state (asynchronous reset assertion). Reversing the clock inputs allows for negative-edge triggered applications. The HMC959LC3 also features an output level control pin, VR, which allows for loss compensation or for signal level optimization.All input signals to the HMC959LC3 are terminated with 50 ? to ground on-chip, and may be either AC or DC coupled. Outputs can be connected directly to a 50 ? terminated system, while DC blocking capacitors may be used if the terminating system is 50 ? to a non-ground DC voltage. The HMC959LC3 operates from a single -3.3 V DC supply and is available in a ceramic RoHS-compliant 3?3 mm SMT package.APPLICATIONS High Speed Frequency Divider?(up to 26 GHz) Broadband Test & Measurement Clock Synthesis Phase Locked Loops

The HMC752LC4 is a GaAs MMIC Low Noise WidebandAmplifier housed in a leadless 4x4 mm ceramicsurface mount package. The amplifier operates between24 and 28 GHz, providing up to 25 dB of smallsignal gain, 2.5 dB noise figure, and output IP3 of+26 dBm, while requiring only 70 mA from a +3V supply.The P1dB output power of up to +13 dBm enablesthe LNA to function as a LO driver for balanced, I/Qor image reject mixers. The HMC752LC4 also featuresI/Os that are DC blocked and internally matched to50 Ohms, making it ideal for high capacity microwaveradios or VSAT applications.Applications Point-to-Point Radios Point-to-Multi-Point Radios Military & Space Test Instrumentation

The HMC736 is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCO. The HMC736 integrates a resonator, negative resistance device, varactor diode and feature half frequency output. 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 +4.2V supply voltage. The voltage controlled oscillator is packaged in a leadless QFN 4?4 mm surface mount package, and requires no external matching components.APPLICATIONS Point-to-Multi-Point Radios Test Equipment & Industrial Controls SATCOM Military End-Use

The HMC742A is a digitally controlled variable gain amplifier which operates from 70 MHz to 4 GHz, and can be programmed to provide from -19.5 dB attenuation, to 12 dB of gain, in 0.5 dB steps. The HMC742A delivers noise figure of 4 dB in its maximum gain state, with output IP3 of up to +39 dBm in any state. The dual mode gain control interface accepts either a three-wire serial input or a 6 bit parallel word. The HMC742A also features a user selectable power up state and a serial output for cascading other serially controlled Hittite components. The HMC742A is housed in an RoHS compliant 5x5 mm QFN leadless package, and requires minimal external components.Applications Cellular/3G Infrastructure WiBro / WiMAX / 4G Microwave Radio & VSAT Test Equipment and Sensors IF & RF Applications

Video IC Development Tools EVAL BRD ADV7802

The AD7705 / AD7706?are complete analog front ends for low frequency measurement applications. These 2-/3-channel devices can accept low level input signals directly from a transducer and produce serial digital output. The devices employ a ?-? conversion technique to realize up to 16 bits of no missing codes performance. The selected input signal is applied to a proprietary, programmable-gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via an on-chip control register, allowing adjustment of the filter cutoff and output update rate. The AD7705 / AD7706 devices operate from a single 2.7 V to 3.3 V or 4.75 V to 5.25 V supply. The AD7705 features two fully differential analog input channels; the AD7706 features three pseudo differential input channels. Both devices feature a differential reference input. Input signal ranges of 0 mV to 20 mV through 0 V to 2.5 V can be incorporated on both devices when operating with a VDD of 5 V and a reference of 2.5 V. They can also handle bipolar input signal ranges of ?20 mV through ?2.5 V, which are referenced to the AIN(?) inputs on the AD7705 and to the COMMON input on the AD7706.The AD7705 / AD7706 devices, with a 3 V supply and a 1.225 V reference, can handle unipolar input signal ranges of 0 mV to 10 mV through 0 V to 1.225 V. The devices can accept bipolar input ranges of ?10 mV through ?1.225 V. Therefore, the AD7705 / AD7706 devices perform all signal conditioning and conversion for a 2-channel or 3-channel system. The AD7705 / AD7706 are ideal for use in smart, microcontroller, or DSP-based systems. The devices feature a serial interface that can be configured for 3-wire operation. Gain settings, signal polarity, and update rate selection can be configured in software using the input serial port. The parts contains self-calibration and system calibration options to eliminate gain and offset errors on the part itself or in the system. CMOS construction ensures very low power dissipation, and the power-down mode reduces the standby power consumption to 20 ?W typ. These parts are available in a 16-lead, wide body (0.3 inch), plastic dual in-line package (DIP); a 16-lead, wide body (0.3 inch), standard small outline (SOIC) package; and a low profile, 16-lead, thin shrink small outline package (TSSOP).

The AD7732 is a high precision, high throughput analog front end. True 16-bit peak-to-peak resolution is achievable with total conversion times of 500 ?s (2 kHz channel switching) making it ideally suitable for high resolution multiplexing applications.The part can be configured via a simple digital interface, which allows users to balance the noise performance against data throughput up to a 15.4 kHz.The analog front end features two fully differential input channels with unipolar or true bipolar input ranges to ?10 V while operating from a single +5 V analog supply. The part has an overrange and underrange detection capability and accepts an analog input overvoltage to ?16.5 V without degrading the performance of the adjacent channels.The differential reference input features ?No-Reference? detect capability. The ADC also supports per channel system calibration options. The digital serial interface can be configured for 3-wire operation and is compatible with microcontrollers and digital signal processors. All interface inputs are Schmitt triggered. The part is specified for operation over the extended industrial temperature range of ?40?C to +105?C and is available in 28-lead TSSOP package.Other parts in the AD7732 family are the AD7734?and the AD7738.The AD7734 is similar to AD7732, but its analog front end features four single-ended input channels.The AD7738 analog front end is configurable for four fully differential or eight single-ended input channels, features 0.625 V to 2.5 V bipolar/unipolar input ranges, and accepts a common-mode input voltage from 200 mV to AVDD ? 300 mV. The AD7738 multiplexer output is pinned out externally, allowing the user to implement programmable gain or signal conditioning before being applied to the ADC.APPLICATIONS PLCs/DCS Multiplexing applications Process control Industrial instrumentation

The HMC821LP6CE is a fully functioned Fractional-N Phase-Locked-Loop (PLL) Frequency Synthesizer with an Integrated Voltage Controlled Oscillator (VCO). The synthesizer consists of an integrated low noise VCO with a triband output, an autocalibration subsystem for low voltage VCO tuning, a very low noise digital Phase Detector (PD), a precision controlled charge pump, a low noise reference path divider and a fractional divider.The fractional synthesizer features an advanced delta-sigma modulator design that allows both ultra-fine step sizes and low spurious products. The phase detector (PD) features cycle slip prevention (CSP) technology to allow faster frequency hopping times. Ultra low in-close phase noise and low spurious also allows wider loop bandwidths for faster frequency hopping and low micro-phonics.For theory of operation and register map refer to the 'PLLs with Integrated VCO - RF VCOs' Operating Guide.Applications Cellular/4G Infrastructure Repeaters and Femtocells Communications Test Equipment CATV Equipment Phased Array Applications DDS Replacement? Very High Data Rate Radios

The HMC778LP6CE is a fully functioned Fractional-N Phase-Locked-Loop (PLL) Frequency Synthesizer with an integrated Voltage Controlled Oscillator (VCO). The input reference frequency range is DC to 350 MHz while the advanced delta-sigma modulator design in the fractional synthesizer allows both ultra-fine step sizes and very low spurious products. The highly integrated structure provides excellent phase noise performance over temperature, shock and process. In addition, the HMC778LP6CE offers frequency sweep and modulation features, external triggering, double-buffering, exact frequency control, phase modulation and more. The HMC778LP6CE is packaged in a leadless QFN 6 x 6 mm surface mount package.For theory of operation and register map refer to the 'PLLs w/ Integrated VCO - Microwave VCOs' Operating Guide.Applications VSAT Radio Microwave Point-To-Point Radios Test Equipment & Industrial Control Military End-Use Phased Array Applications FMCW Radar Systems