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The PMP4804 reference design provides 3.3V at 100W from a standard 48V telecom input with greater than 94% efficiency. This design uses the UCC2897A active clamp controller along with the CSD16401Q5A synchronous rectifiers. The circuit is built in an industry standard Quarter-Brick footprint.

ADI 47.2 GHz to 48.2 GHz TX/RX Dual Polarization Beamformer

Demonstration Circuit 1394A shows how the LT3480 high voltage step-down regulator can be used with the LTC4098 USB-compatible Li-Ion battery charger to design a 2 input source battery charger circuit that also provides power to the load from the LT3480, a 5V wall adapter or the batteries based on available power. The LTC4098 interfaces with a number of ADI switching regulators to provide a high efficiency, high voltage power path. The LT3480 operates from 8V to 38V (60V transients) and provides 2A with a voltage range that is mode and load dependent.

The ADA4891-1 (single), ADA4891-2 (dual), ADA4891-3 (triple), and ADA4891-4 (quad) are CMOS, high speed amplifiers that offer high performance at a low cost. The amplifiers feature true single-supply capability, with an input voltage range that extends 300 mV below the negative rail.In spite of their low cost, the ADA4891 family provides high performance and versatility. The rail-to-rail output stage enables the output to swing within 50 mV of each rail, enabling maximum dynamic range.The ADA4891 family of amplifiers is ideal for imaging applications, such as consumer video, CCD buffers, and contact image sensor buffers. Low distortion and fast settling time also make them ideal for active filter applications.The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are available in a wide variety of packages.The ADA4891-1 is available in 8-lead SOIC and 5-lead SOT-23 packages.The ADA4891-2 is available in 8-lead SOIC and 8-lead MSOP packages.The ADA4891-3 and ADA4891-4 are available in 14-lead SOIC and 14-lead TSSOP packages.The amplifiers are specified to operate over the extended temperature range of ?40?C to +125?C.Applications Imaging Consumer video Active filters Coaxial cable drivers Clock buffers Photodiode preamp Contact image sensor and buffers

Demonstration circuit 1787A is a wide input voltage range SEPIC converter featuring the LT3759 controller. It converts a 2.8V~36V input to a 12V output, with 1A load current capability for VIN ≥ 4V. The converter operates at a 300 kHz nominal switching frequency, with 91% peak efficiency. The DC1787A can be easily modified to generate other output voltages, and can also be optimized for efficiency and size with narrower input voltage ranges.

The AD7980 is a 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN?. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput.The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO.The AD7980 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from ?40?C to +125?C.APPLICATIONSAutomated test equipmentData acquisition systemsMedical instrumentsMachine automation

bq769x0 Family Top 10 Design Considerations bq76920, bq76930, bq76940

The CC2530-SE2431L Reference Design contains schematic and layout for the CC2530-SE2431 evaluation module. The reference design demonstrates how to integrate CC2530/CC2531 and SE2431L: and the application note shows the RF performance of the combo and suggests ways for RF layout. For optimum RF performance: the schematic and layout should be copied as closely as possible. This is a 4-layer reference design with both an SMA connector for RF output matched to 50 ohm and an inverted-F PCB antenna.

This document presents a solution to control a permanent magnet synchronous motor using the TMS320C24x. This new family of DSPs enables cost-effective design of intelligent controllers for brushless m

The AD1937 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with differential input and eight digital-to-analog converters (DACs) with differential output, using the Analog Devices, Inc., patented multibit sigma-delta (?-?) architecture. An I2C? port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1937 operates from 3.3 V digital and analog supplies. The AD1937 is available in a 64-lead (differential output) LQFP.The AD1937 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive the master clock from the LR (frame) clock or from an external crystal, the AD1937 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs are designed using the latest Analog Devices continuous time architecture to further minimize EMI. By using 3.3 V supplies, power consumption is minimized and further reduces emissions.ApplicationsAutomotive audio systems Home theater systemsSet-top boxesDigital audio effects processorsData Sheet, Rev. 0, 9/08

AN-726 Station Management Simplified

This reference design supports the supply for a security tracker using the TPS40200-Q1: with the opportunity of a wide input voltage range from 8V-50V. The output can handle 4.3V up to 3A due to the non-synchronous buck controller. The reference design also allows for flexible design with a simple configuration due to the device.

Demonstration circuit 1401A is an adjustable 500mA linear regulator featuring the LT3085. Architected as a precision current source and voltage follower, the LT3085 can be used in many applications requiring up to 500mA output current, adjustability down to 0V at the output and no heat sink. The device brings out the collector of the pass transistor to allow low dropout operation when used with multiple supplies. The demo board operates with an input voltage range from 1.7V to 25V (the maximum output voltage is limited by the output capacitor's voltage rating) and provides a jumper-selectable output voltage of 1.2V, 1.8V, 2.5V, 3.3V, 5V or a user-defined value. For the LT3085 to regulate properly, the voltage on the control pin (VCONTROL) must be more than approximately 1.2V greater than the output voltage.

The PMP5327 reference design provides a 42V/6A output with power factor correction from a universal AC input voltage range. This design uses the UCC28019A to control the front end PFC boost stage. The output of the PFC is followed by a UCC25600 LLC resonant half-bridge. The total efficieny: from input to output is over 92% from a 230VAC input and over 89% from a 115VAC input. An additional 12V/250mA output is also generated by this supply.

This reference design presents a complete power solution and low-cost: discrete sequencing circuit for the OMAP-L132: OMAP-L137: and OMAP-L138 processors.