The HMC951A is a compact gallium arsenide (GaAs), monolithic microwave integrated circuit (MMIC), in-phase quadrature (I/Q) downconverter in a RoHS compliant package that operates from 5.6 GHz to 8.6 GHz. This device provides a small signal conversion gain of 13 dB with a noise figure of 2 dB and an image rejection of 32 dBc. The HMC951A uses a low noise amplifier (LNA) followed by an image mixer that is driven by a local oscillator (LO) buffer amplifier. The image reject mixer eliminates the need for a filter following the LNA and removes thermal noise at the image frequency. The IF1 and IF2 mixer outputs are provided and an external 90? hybrid is needed to select the required sideband. The I/Q mixer topology reduces the need for filtering of unwanted sideband. The HMC951A is a smaller alternative to hybrid style, single sideband (SSB) downconverter assemblies, and it eliminates the need for wire bonding by allowing the use of surface-mount manufacturing techniques.The HMC951A is available in 4 mm ? 4 mm, 24-lead lead frame chip scale package (LFCSP) and operates over the ?40?C to +85?C temperature range. An evaluation board for the HMC951A is also available upon request. Applications Point to point and point to multipoint radios Military radars, electronic warfare, and electronic intelligence Satellite communications Sensors

Video IC Development Tools EVAL BRD ADV7802

The ADXL344 Development Board is an easy-to-use tool designed to shorten application development time by providing a ready-to-use platform for data collection and firmware development. The board is pre-configured as a datalogger that can be used to gather data for refining algorithms, tuning thresholds, and generally familiarizing oneself with accelerometer data. Powered by two AAA batteries, the board is completely untethered and integrates seamlessly into portable applications. Logged data is stored on a MicroSD memory card, providing essentially unlimited memory capacity and operating system versatility. Data is stored in a text (.txt) file, so no software installation is required to operate the board or read data. A 2GB MicroSD card and a USB MicroSD card reader are provided with the board. Additionally, the board is fully programmable, providing a hardware platform on which firmware can be tested in parallel with development of application hardware. Communications and processing are performed by an ARM7-based ADuC7024 micro-controller, and firmware is written in C. A programming cable is provided with the board, and a development environment and header files are supplied on this page. Finally, the platform can be duplicated in the final application, having already been tested with the application firmware. Schematics and layout can be found under the Supporting Documentation tab and can be used freely in your application. Note that this board is not configured to display real-time data. For real-time evaluation of the ADXL344, please refer to the Inertial Sensor Evaluation Board. For a simple ADXL344 Breakout Board, refer to the EVAL-ADXL344Z.

The LTC2752 is a dual 16-bit multiplying serial-input, current-output digital-to-analog converter. It operates from a single 3V to 5V supply and is guaranteed monotonic over temperature. The LTC2752A provides full 16-bit performance (?1LSB INL and DNL, max) over temperature without any adjustments. This SoftSpan? DAC offers six output ranges (up to ?10V) that can be programmed through the 3-wire SPI serial interface, or pinstrapped for operation in a single range. Any on-chip register (including DAC output-range settings) can be read for verification in just one instruction cycle; and if you change register content, the altered register will be automatically read back during the next instruction cycle. Voltage-controlled offset and gain adjustments are also provided; and the power-on reset circuit and CLR pin both reset the DAC outputs to 0V regardless of output range.Applications High Resolution Offset and Gain Adjustment Process Control and Industrial Automation Automatic Test Equipment Data Acquisition Systems

Demonstration circuit 2718A is a no-opto flyback converter featuring the LT8316. The demo board outputs 12V and maintains tight regulation with a load current from 30mA to 3A. It is optimized to operate over a wide 100V to 600V DC input voltage range. Output voltage accuracy stays within ±5% over the entire input voltage and load range. The LT8316 is a high voltage flyback controller. No optoisolator is needed for regulation. The part samples the output voltage from the isolated flyback waveform appearing across a third winding on the transformer. Quasi-resonant boundary mode operation improves load regulation. The LT8316 is available in a thermally enhanced 20-pin TSSOP package with four pins removed for high-voltage spacing. The LT8316 data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this quick start guide for demo circuit 2718A.

The LTM8005 is a 38VIN, 38VOUT boost ?Module (powermicromodule) LED driver designed to regulate current orvoltage and is ideal for driving LEDs. The fixed frequencyand current mode architecture result in stable operationover a wide range of supply and output voltages. Spreadspectrum frequency modulation (SSFM) can be activatedfor improved electromagnetic compatibility (EMC) performance.The ground-referred voltage FB pin serves as theinput for several LED protection features, and also allows theconverter to operate as a constant voltage source. The PWMinput provides LED dimming ratios of up to 3000:1, and theCTRL inputs provide additional analog dimming capability.The low profile package enables utilization of unusedspace on the bottom of PC boards. The LTM8005 is packagedin thermally enhanced, compact over-molded BallGrid Array (BGA) package suitable for automated assemblyby standard surface mount equipment. The LTM8005is RoHS compliant.APPLICATIONS High Power LED, High Voltage LED Accurate Current-Limited Voltage Regulators

The HMC641ALC4 is a broadband non-reflective GaAs pHEMT SP4T switch in a compact 4x4 mm ceramic package. Covering DC to 20 GHz, this switch offers high isolation, low insertion loss and on-chip termination of isolated ports. This switch also includes an on board binary decoder circuit which reduces the number of required logic control lines from four to two. The HMC641ALC4 is controlled with 0/ -5V logic, exhibits fast switching speed and consumes much less DC current than pin diode based solutions.APPLICATIONS Telecom Infrastructure Microwave Radio & VSAT Military & Space Hybrids Test Instrumentation SATCOM & Sensors

Demonstration circuit 649 is a Telecom isolated DC/DC converter featuring the LTC3803 constant frequency current mode flyback controller. The DC649 converts an isolated 36V to 72V input and provides 2A of output current at 5V. The 200kHz constant frequency operation is maintained down to very light load to reduce low frequency noise generated over a wide range of load current. The converter provides high output voltage accuracy (typically ±2%) over wide load range with no minimum load requirement.

Demonstration circuit 1267A is a step-up DC/DC regulator featuring the LTC3125EDCB and is ideally suited for pulsed load applications where the input current needs to be limited. Demonstration circuit 1267A is configured for 500mA maximum input current limit and can handle pulsed load currents of up to 2A, with duty cycles of up to 15%. The input voltage range is 3.3V ±10%.

The LTC2216/LTC2215 are 80Msps/65Msps sampling 16- bit A/D converters designed for digitizing high frequency, wide dynamic range signals with input frequencies up to 400MHz. The input range of the ADC is ?xed at 2.75VP-P.The LTC2216/LTC2215 are perfect for demanding communications applications, with AC performance that includes 81.5dBFS noise ?oor and 100dB spurious free dynamic range (SFDR). Ultra low jitter of 85fsRMS allows undersampling of high input frequencies while maintaining excellent noise performance. Maximum DC specs include ?3.5LSB INL, ?1LSB DNL (no missing codes). The digital output can be either differential LVDS or single-ended CMOS. There are two format options for the CMOS outputs: a single bus running at the full data rate or demultiplexed buses running at half data rate. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V. The ENC+ and ENC? inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycles.Applications Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE