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DC1483A: Demo Board for the LTC3535 Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter.

5Vin DM643x Power using a PMIC (Multi-output DC/DC Converter)

The CC2430 is a true System-on-Chip (SoC) specifically tailored for IEEE 802.15.4 and ZigBee applications. It enables ZigBee nodes to be built with very low total bill-of-material costs.

CC2591 is a range extender for all existing and future low-power 2.4-GHz RF transceivers, transmitters and SoC products from Texas Instruments.

CC2591 increases the link budget by providing a Power Amplifier (PA) for improved output power and a Low Noise Amplifier (LNA) with a low noise figure for improved receiver sensitivity. CC2591 further contains RF switches, RF matching and a balun for a seamless interface with the CC2430. This allows for simple design of high performance wireless applications.

This application note describes how to implement the CC2430 and the CC2591 in the same design. It further describes the expected performance from this combination as well as important factors to consider with respect to the layout and regulatory requirements. The combined CC2430 and CC2591 solution is suitable for systems targeting compliance with FCC CFR47 Part 15.

The RF front end of CC2430 is the same as the ones being used in CC2431 and in CC2480. The presented results in this application note are therefore also valid for CC2431 and CC2480.

The AD9228 is a quad, 12-bit, 40/65 MSPS analog-to-digital converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 65 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical. The ADC requires a single 1.8 V power supply and LVPECL-/ CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications. The ADC automatically multiplies the sample rate clock for the appropriate LVDS serial data rate. A data clock output (DCO) for capturing data on the output and a frame clock output (FCO) for signaling a new output byte are provided. Individual channel power-down is supported and typically consumes The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI). The AD9228 is available in an RoHS compliant, 48-lead LFCSP. It is specified over the industrial temperature range of ?40?C to +85?C.PRODUCT HIGHLIGHTSSmall Footprint. Four ADCs are contained in a small, space-saving package. Low power of 119 mW/channel at 65 MSPS. Ease of Use. A data clock output (DCO) is provided that operates at frequencies of up to 390 MHz and supports double data rate (DDR) operation.User Flexibility. The SPI control offers a wide range of flexible features to meet specific system requirements. Pin-Compatible Family. This includes the AD9287 (8-bit), AD9219 (10-bit), and AD9259 (14-bit).?APPLICATIONSMedical imaging and nondestructive ultrasound Portable ultrasound and digital beam-forming systemsQuadrature radio receivers Diversity radio receivers Tape drives Optical networking Test equipment

This reference design implements a video over LVDS solution for automotive infotainment applications.It highlights the support of multi-touch with haptic feedback: LCD backlight control: and ambient light sensing: without the introduction of dedicated support lines back to the host processor. This design is implemented using two boards. The main electronics board: SAT0059 is where the deserializer: microProcessor: backlight controller: haptics drivers and power supply are located. The LCD interface board: SAT0096: is a physical and electrical interface to a specific LCD panel. It connects to the SAT0059 through a Samtec board to board connector and provides connection points for the LCD panel: touchscreen: backlight connections and haptic drivers. The SAT0096 is designed for a Microtips UMSH-8596MD-20T display. If a different display is to be used: a new LCD Interface board would likely need to be designed.

The PMP8252 reference design provides 3.3V at 30A from a wide range 18V-60V telecom input with a peak efficiency that is greater than 93%. This design uses the UCC2897A active clamp controller along with Texas Instruments' NexFET power MOSFETs for synchronous rectification.

The TIDA-00170 is a reference design for industrial control Analog Mixed Input Output Modules. The design implements four channel analog input & two channel analog output. The analog input channels can measure all standard industrial voltages up to ±10V and current inputs up to 24mA. The two simultaneous analog outputs can source voltage up to ±10V and current up to 24mA.The reference design includes the necessary on-board protection circuit & is tested for IEC61000-4 standard – EFT: ESD and Surge requirements with IO Controller platform. The protection circuitry does not negatively affect the design and test results showed typical unadjusted errors were less than 0.1% of the full-scale range (FSR) for the analog input channel and less than 0.2% FSR for the analog output channel.

The HMC345ALP3E is a broadband non-reflective GaAs MESFET SP4T switch in a low cost leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. The switch operates using a positive control voltage of 0/+5V, and requires a fixed bias of +5V.* Blocking capacitors are required at ports RFC and RF1, 2, 3, & 4. Their value will determine the lowest transmission frequency.APPLICATIONSThis switch is suitable for usage in DC - 8.0 GHz 50-Ohm or 75-Ohm systems: Broadband Fiber Optics Switched Filter Banks Wireless below 8 GHz

This application report describes two methods to obtain a gain setting for a fixed-gain audio power amplifier. Included is a detailed operation analysis.

DC1449A: Demo Board for the LT8415 Ultralow Power Boost Converter with Dual Half-Bridge Switches.

Hotswap circuits rely on the thermal capacitance of the series-limiting MOSFET to dissipate the large transient energy under current- or power-limit operation. The peakjunction temperature must be controlled in order to achieve a robust design. The constant-power MOSFET protection of the TPS2490 provides a simple method to useinformation provided by MOSFET manufacturers to determine peak junct

DC1701A: Demo Board for the LTC4098/LTC4098-1 USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection.

The ADP2138 and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 ?A (typical) from the input source.Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current overshoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP).Applications PDAs and palmtop computers Wireless handsets Digital audio, portable media players Digital cameras, GPS navigation units

This application report describes LP5521 programming commands and provides examples for the user.