The ADXRS646 is a high performance angular rate sensor(gyroscope) that offers excellent vibration immunity. Biasstability is a widely-recognized figure of merit for highperformance gyroscopes, but in real-world applications,vibration sensitivity is often a more significant performancelimitation and should be considered in gyroscope selection. TheADXRS646 offers superior vibration immunity and accelerationrejection as well as a low bias drift of 12?/hr (typical), enabling itto offer rate sensing in harsh environments where shock andvibration are present.The ADXRS646 is manufactured using the Analog Devices,Inc., patented high volume BiMOS surface-micromachiningprocess. An advanced, differential, quad sensor design providesthe improved acceleration and vibration rejection. The outputsignal, RATEOUT, is a voltage proportional to angular rateabout the axis normal to the top surface of the package. Themeasurement range is a minimum of ?250?/sec. The output isratiometric with respect to a provided reference supply. Otherexternal capacitors are required for operation.A temperature output is provided for compensation techniques.Two digital self-test inputs electromechanically excite the sensorto test proper operation of both the sensor and the signal conditioningcircuits.The ADXRS646 is available in a 7 mm ? 7 mm ? 3 mm CBGAchip-scale package.APPLICATIONS Industrial applications Severe mechanical environments Platform stabilization

The ADXRS64x family of low noise, vibration rejecting yaw rate gyroscopes are drop-in performance upgrades to existing designs using the ADXRS62x family.The ADXRS649 is pin- and package-compatible to the ADXRS62x family and offers the highest rate of rotation sensing available with ?20,000?/sec and fast 3 millisecond (ms) startup for quick power cycling. This measurement range is extendable to ?50,000?/sec with the addition of an external resistor. It is ideally suited for applications where exceptionally wide measurement ranges are needed.The ADXRS649 is a complete angular rate sensor (gyroscope) that uses the Analog Devices, Inc., patented high volume BiMOS surface-micromachining process to make a complete gyro on one chip. An advanced, differential, quad sensor design rejects the influence of linear acceleration, enabling the ADXRS649 to offer rate sensing in harsh environments where shock and vibration are present.The output signal, RATEOUT (B1, A2), is a voltage proportional to the angular rate about the axis normal to the top surface of the package. The output is ratiometric with respect to a provided reference supply. An external capacitor is used to set the band-width. The measurement range is extendable to ?50,000?/sec by adding an external resistor. Low power consumption (3.5 mA) enables very low power consumption, and ultrafast startup (3 ms) allows for quick power cycling of the gyro. At 10 samples per second, a pair of CR2032 coin cells can power the ADXRS649 for three months.A temperature output is provided for compensation techniques. Two digital self-test inputs electromechanically excite the sensor to test proper operation of both the sensor and the signal condi-tioning circuits. The ADXRS649 is available in a 7 mm ? 7 mm ? 3 mm CBGA chip scale package.Applications Sports equipment Industrial applications Form stabilization High speed tachometry

The LT3960 is a robust high speed transceiver that extends a single-master I2C bus through harsh or noisy environments at up to 400kbps using the CAN-physical layer. One LT3960 sits near the I2C master, creating from SCL and SDA equivalent differential buses (I2CAN) on two twisted pairs. At the other end of the twisted pairs, a second LT3960 recreates the I2C bus locally for any slave I2C devices. A built-in 3.3V LDO powers both the I2C and I2CAN buses from a single input supply from 4V to 60V. Alternatively, the LT3960 can be powered directly from a 3.3V or 5V supply.The LT3960 is available in a 10-lead MSOP package.APPLICATIONSIndustrial NetworkingAutomotive NetworkingRemote Sensors

Evaluation circuit EVAL-LT8333-AZ features the LT8333 in a SEPIC configuration. It operates with a switching frequency of 2MHz and is designed to convert a 3V to 26V source to 12V output. The converter can output up to 1.25A depending on the input voltage (see Figure 3 in the demo manual, maximum output current vs VIN curve). This evaluation circuit features Spread Spectrum Frequency Modulation (SSFM) and EMI filters to provide optimum EMI performance. This PCB layout is optimized for good EMI performance and small solution size. The evaluation board contains a selectable jumper, JP1, to aid in the selection of the desired SYNC pin mode of operation. At light load, either pulse-skipping (PULSE SKIP) or low-ripple Burst Mode® operation (BURST) can be selected to improve the efficiency. The LT8333 boost/SEPIC/inverting converter IC operates over an input range of 2.8V to 40V, suitable for automotive, telecom, and industrial applications. The converter provides adjustable and synchronizable operation from 300kHz to 2MHz with SSFM option. The LT8333 packs other popular features such as soft-start, bias pin, input undervoltage lockout. The IC can exhibit a low quiescent current down to 9μA in BURST mode and 1μA in shutdown, which makes it ideal for battery-operated systems. The LT8333 is assembled in a thermally enhanced 10-lead 3mm × 3mm DFN package. The data sheet gives a complete description of the device, operation, and application information. The data sheet must be read in conjunction with the demo manual for EVAL-LT8333-AZ.

The SSM2529 is a digital input, Class-D power amplifier that combinesa digital-to-analog converter (DAC), a low power audio specificdigital signal processor, and a sigma-delta (?-?) Class-D modulator.This unique architecture enables extremely low real-world powerconsumption from digital audio sources with excellent audioperformance. The SSM2529 is ideal for power sensitive applications,such as mobile phones and portable media players, where systemnoise can the corrupt small analog signals that are sent to ananalog input audio amplifier.Using the SSM2529, audio data can be transmitted to the amplifierover a standard digital audio serial interface, thereby significantlyreducing the effect of noise sources such as GSM interference orother digital signals on the transmitted audio. The closed-loopdigital input design retains the benefits of an all-digital amplifier, yetenables very good PSRR and audio performance. The three-level,?-? Class-D modulator is designed to provide the least amount ofEMI, the lowest quiescent power dissipation, and the highestaudio efficiency without sacrificing audio quality.The audio input is provided via a serial audio interface that can beprogrammed to accept all common audio formats, including I2S,TDM, and PDM. Control of the IC is provided via an I2C controlinterface. An alternative to I2C control is standalone operationmode, which allows several settings that are adjusted by off-chipexternal resistors. The SSM2529 can accept a variety of input MCLKfrequencies and can use BCLK as the clock source in someconfigurations. An integrated PLL can also provide the devicemaster clock.The integrated DSP includes soft digital volume control circuits; ade-emphasis, high-pass filter; a seven-band programmable equalizer;and a programmable digital dynamic range compressor. In addition,the part includes a feedforward speaker temperature predictionmodule to protect the loudspeaker.The SSM2529 supports single-supply mode, where DVDD isprovided by the on-chip LDO regulator, eliminating the need for anexternal digital core supply.The digital interface is very flexible and convenient. It can offer abetter system solution for other products whose sole audio sourceis digital, such as wireless speakers, laptop PCs, portable digitaltelevisions, and navigation systems.The SSM2529 is specified over the industrial temperature range of?40?C to +85?C. It has built-in thermal shutdown and output shortcircuitprotection. It is available in a 16-ball, 1.92 mm ? 1.94 mmwafer level chip scale package (WLCSP).Applications Mobile phones Portable media players Laptop PCs Wireless speakers Portable gaming Navigation systems

The SSM2537 is a PDM digital input Class D power amplifier that offers higher performance than existing DAC plus Class D solutions. The SSM2537 is ideal for power sensitive applications where system noise can corrupt the small analog signal sent to the amplifier, such as mobile phones and portable media players.The SSM2537 combines an audio digital-to-analog converter (DAC), a power amplifier, and a PDM digital interface on a single chip. The integrated DAC plus analog ?-? modulator architecture enables extremely low real-world power consumption from digital audio sources with excellent audio performance. Using the SSM2537, audio can be transmitted digitally to the audio amplifier, significantly reducing the effect of noise sources such as GSM interference or other digital signals on the transmitted audio. The SSM2537 is capable of delivering 2.5 W of continuous output power with <1% THD + N driving a 4 ? load from a 5.0 V supply.The SSM2537 features a high efficiency, low noise modulation scheme that requires no external LC output filters. The closed-loop, three-level modulator design retains the benefits of an all-digital amplifier, yet enables very good PSRR and audio performance. The modulation continues to provide high efficiency even at low output power and has an SNR of 103 dB PDM input. Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class D architectures.The SSM2537 has a four-state gain and sample frequency selection pin that can select two different gain settings, optimized for 3.6 V and 5 V operation. This same pin also controls the internal digital filtering and clocking, which can be set for 64 ? fS or 128 ? fS input sample rates to support both 3 MHz and 6 MHz PDM clock rates.The SSM2537 has a micropower shutdown mode with a typical shutdown current of 1 ?A for both power supplies. Shutdown is enabled automatically by gating input clock and data signals. A standby mode can be entered by applying a designated PDM stop condition sequence. The device also includes pop-and-click suppression circuitry. This suppression circuitry minimizes voltage glitches at the output when entering or leaving the low power state, reducing audible noises on activation and deactivation.The SSM2537 is specified over the industrial temperature range of ?40?C to +85?C. It has built-in thermal shutdown and output short-circuit protection. It is available in a 9-ball, 1.3 mm ? 1.3 mm wafer level chip scale package (WLCSP).Applications Mobile handsets

The SSM3302 is a fully integrated, high efficiency, stereo Class-D audio amplifier. The application circuit requires minimal externalcomponents and operates from a single 7 V to 18 V supply. The device is capable of delivering 2 ? 10 W of continuous output power into a 4 ? load (or 2 ? 8 W into 8 ?) with 98 dB. Spread spectrum pulse density modulation (PDM) is used toprovide lower EMI radiated emissions compared with other Class-D architectures. The SSM3302 includes an optional modulation select pin (ultralow EMI emission mode) that significantly reduces the radiated emissions at the Class-D outputs, particularly above 100 MHz. The SSM3302 can pass FCC Class-B emissions testing with an unshielded 20 inch cable using common-mode choke-based filtering.The fully differential input of the SSM3302 provides excellent rejection of common-mode noise on the input. The device also includes a highly flexible gain select pin that only requires one series resistor to choose a gain between 9 dB and 24 dB, with no change to the input impedance. The benefit of this is to improve gain matching between multiple SSM3302 devices within a single application compared with using external resistors to set gain.The SSM3302 includes an integrated voltage regulator thatgenerates a 5 V rail.The SSM3302 has a micropower shutdown mode with a typical shutdown current of 10 ?A. Shutdown is enabled by applying a logic low to the SD pin. The device also includes pop-and-click suppression circuitry that minimizes voltage glitches at the output during turn on and turn off, reducing audible noise during activation and deactivation.Other included features to simplify system level integration of the SSM3302 are input low-pass filtering to suppress out-ofband DAC noise interference to the pulse density modulator, fixed input impedance to simplify component selection across multiple platform production builds, and a thermal warning indicator pin.The SSM3302 is specified over the commercial temperaturerange (?40?C to +85?C). It has built-in thermal shutdown andoutput short-circuit protection. It is available in a halide-free,40-lead, 6 mm ? 6 mm lead frame chip scale package (LFCSP).APPLICATIONS Mobile computing Flat panel televisions Media docking stations Portable electronics Sound bars

DC919A-E: Demo Board for the LTC2203 16-Bit, 25Msps ADCs.

Demonstration circuit 934A features the LTC2607 dual 16-bit DAC. This device establishes a new board-density benchmark for 16-bit DACs and advances performance standards for output drive, load regulation, and crosstalk in single supply, voltage-output DACs.

The HMC1113LP5E is a compact GaAs MMIC I/Q downconverter in a leadless 5 x 5 mm low stress injection molded plastic surface mount package. This device provides a small signal conversion gain of 12 dB with a noise figure of 1.8 dB and 25 dBc of image rejection. The HMC1113LP5E utilizes an LNA followed by an image reject mixer which is driven by an LO buffer amplifier. The image reject mixer eliminates the need for a filter following the LNA, and removes thermal noise at the image frequency. I/Q mixer outputs are provided and an external 90? hybrid is needed to select the required sideband. The HMC1113LP5E is a much smaller alternative to hybrid style image reject mixer downconverter assemblies, and it eliminates the need for wire bonding by allowing the use of surface mount manufacturing techniques.Applications Point-to-Point &?Point-to-Multi-Point Radio Military Radar, EW & ELINT Satellite Communications Maritime & Mobile Radios