The LTC6900 is a precision, low power oscillator that is easy to use and occupies very little PC board space. The oscillator frequency is programmed by a single external resistor (RSET). The LTC6900 has been designed for high accuracy operation (?1.5% frequency error) without the need for external trim components. The LTC6900 operates with a single 2.7V to 5.5V power supply and provides a rail-to-rail, 50% duty cycle square wave output. The CMOS output driver ensures fast rise/fall times and rail-to-rail switching. The frequency-setting resistor can vary from 10k? to 2M? to select a master oscillator frequency between 100kHz and 20MHz (5V supply). The three-state DIV input determines whether the master clock is divided by 1, 10 or 100 before driving the output, providing three frequency ranges spanning 1kHz to 20MHz (5V supply). The LTC6900 features a proprietary feedback loop that linearizes the relationship between RSET and frequency, eliminating the need for tables to calculate frequency. TApplications Portable and Battery-Powered Equipment PDAs Cell Phones Low Cost Precision Oscillator Charge Pump Driver Switching Power Supply Clock Reference Clocking Switched Capacitor Filters Fixed Crystal Oscillator Replacement Ceramic Oscillator Replacement

DC1130A: Demo Board for the LT3477 3A, DC/DC Converter with Dual Rail-to-Rail Current Sense.

The ADP5054 combines four high performance buck regulators in a 48-lead LFCSP package that meets demanding performance and board space requirements. The device enables direct connection to high input voltages of up to 15.5 V with no preregulators.Channel 1 and Channel 2 integrate high-side power metal-oxide semiconductor field effect transistors (MOSFETs) and low-side MOSFET drivers. External NFETs can be used in low-side power devices to achieve an efficiency optimized solution and to deliver a programmable output current of 2 A, 4 A, or 6 A. Combining Channel 1 and Channel 2 in a parallel configuration provides a single output with up to 12 A of current.Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver an output current of 2.5 A. Combining Channel 3 and Channel 4 in a parallel configuration can provide a single output with up to 5 A of current.The switching frequency of the ADP5054 can be programmed or synchronized to an external clock from 250 kHz to 2 MHz, and an individual ?? frequency configuration is available for each channel.The ADP5054 contains an individual precision enable pin on each channel for easy power-up sequencing. The internal low 1/f noise reference is implemented in the ADP5054 for noise sensitive applications.Applications FPGA and processor applications Small cell base stations Security and surveillance Medical applications

The LTC2157-12/LTC2156-12/LTC2155-12 are a family of dual 250Msps/210Msps/170Msps 12-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 68.5dB SNR and 90dB spurious free dynamic range (SFDR). The 1.25GHz input bandwidth allows the ADC to achieve high undersampling ratio with very low attenuation. The latency is only five clock cycles.DC specs include ?0.26LSB INL (typ), ?0.16LSB DNL (typ) and no missing codes over temperature. The transition noise is 0.54LSBRMS.The digital outputs are double data rate (DDR) LVDS.The ENC+ and ENC? inputs can be driven differentially with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles. Bits LTC2156-12 12 LTC2156-14 14 Applications Communications Cellular Basestations Software Defined Radios Medical Imaging High Definition Video Testing and Measurement Instruments

The?AD7794/AD7795 are low power, low noise, complete analog front ends for high precision measurement applications. They contain a low noise, 24-/16-bit ?-? ADC with six differential inputs. The on-chip low noi se instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC.Each device contains a precision, low noise, low drift internal band gap reference, and can also accept up to two external differential references. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator that is used to set the common-mode voltage of a channel to AVDD/2. The low-side power switch can be used to power down bridge sensors between conversions, minimizing the system?s power consumption. The AD7794/AD7795 can operate with either an internal clock or an external clock. The output data rate from each part can vary from 4.17 Hz to 470 Hz.Both parts operate with a power supply from 2.7 V to 5.25 V. The B-grade parts (AD7794 and AD7795) are specified for a temperature range of ?40?C to +105?C while the C-grade part (AD7794) is specified for a temperature range of ?40?C to +125?C. They consume a current of 400 ?A typical and are housed in a 24-lead TSSOP.Applications Temperature measurement Pressure measurement Weigh scales Strain gage transducers Gas analysis

Demonstration circuit 2523A is an 18V, 8.5A (continuous)/12A (peak) synchronous step-down Silent Switcher® with 16µA quiescent current featuring the LT8652S. The LT8652S is a compact, high efficiency, high speed synchronous monolithic step-down switching with the second generation Silent Switcher structure that minimizes EMI and reduces PCB layout sensitivity. Top and bottom power switches, compensation components and other necessary circuits are inside of the LT8652S to minimize external components and simplify design. The demo board has two outputs: 3.3V and 1.2V from a 3.6V to 18V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The SYNC pin on the demo board is grounded by default for low ripple Burst Mode® operation. Move JP2 to FCM without SSM position can change the operation mode to forced continuous mode operation. Once JP2 is on FCM with SSM position, VCC is applied to the SYNC pin for low EMI spread spectrum operation. To synchronous to an external clock, move JP2 to SYNC and apply the external clock to the SYNC turret. The demonstration circuit 2523A runs at 2MHz to minimize solution size. The peak efficiency is 90%. The IC temperature rise is less than 70°C when both channels run at full load, 8.5A each, at 2MHz. The demo board has EMI filters installed for both channels. To use the EMI filter, the input should be tied to VEMI1/VEMI2, not VIN1/VIN2. The LT8652S data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this demo manual for DC2523A.

Demonstration circuit 2046A-C is a PoE powered device (PD) with an isolated power supply using synchronous flyback topology, featuring the LT4276 and ideal diode bridge controller (LT4321).

The ADIN1300 is a low power, single port, Gigabit Ethernet transceiver with low latency and power consumption specifications primarily designed for industrial Ethernet applications.This design integrates an energy efficient Ethernet (EEE) physical layer device (PHY) core with all associated common analog circuitry, input and output clock buffering, management interface and subsystem registers, and MAC interface and control logic to manage the reset and clock control and pin configuration.The ADIN1300 is available in a 6 mm ? 6 mm, 40-lead lead frame chip scale package (LFCSP). The device operates with a minimum of 2 power supplies, 0.9 V and 3.3 V, assuming the use of a 3.3 V MAC interface supply. For maximum flexibility in system level design, a separate VDDIO supply enables the management data input/output (MDIO) and MAC interface supply voltages to be configured independently of the other circuitry on the ADIN1300, allowing operation at 1.8 V, 2.5 V, or 3.3 V. At power-up, the ADIN1300 is held in hardware reset until each of the supplies has crossed its minimum rising threshold value. Brown-out protection is provided by monitoring the supplies to detect if one or more supply drops below a minimum falling threshold (see Table 17 on the datasheet), and holding the device in hardware reset until the power supplies return and satisfy the power-on reset (POR) circuit.The MII management interface (also referred to as MDIO interface) provides a 2-wire serial interface between a host processor or MAC (also known as management station (STA)) and the ADIN1300, allowing access to control and status information in the PHY core management registers. The interface is compatible with both the IEEE 802.3 Standard Clause 22 and Clause 45 management frame structures.The ADIN1300 can support cable lengths up to 150 meters at Gigabit speeds and 180 meters when operating at 100 Mbps or 10 Mbps.Applications Industrial automation Process control Factory automation Robotics/Motion Control Building automation Test and Measurement Industrial IoT

Demonstration circuit SCP-ADP5070-EVALZ is a dual out-put DC-DC converter designed to create a dual polarity regulated voltage for powering several signal chains. The positive regulator provides 15V/1A of output while the negative regulator delivers –15V/300mA. Like all boards in the Signal Chain Power series, this board is designed to be easily plugged into other SCP boards to form a complete signal chain power system, enabling fast evaluation of low power signal chains. To evaluate this board, some universal SCP hardware is required, namely: SCP-INPUT-EVALZ SCP-OUTPUT-EVALZ SCP-1X5BKOUT-EVALZ SCP-THRUBRD-EVALZ SCP-FILTER-EVALZ SCP-1X2BKOUT-EVALZ SCP-5X1-EVALZ   To properly evaluate SCP series demo boards, you will need the SCP Configurator companion software. SCP Configurator can help you choose the right board and topology for your design. Note that the Demo Manual does not cover details important to the operation and configuration regarding the ADP5070. Please refer to the ADP5070 datasheet for a complete description of the part.

The EV-21569-SOM with low-cost evaluation and rapid prototyping of the ADSP-2156× Family (ADSP-21562/21563/21565/21566/21567/21569) of SHARC+ audio processors. It features the processor, memory, and power portions of the design and provides an easy-to-use plug-n-play reference design with all the key interfaces made available on three connectors for marrying to either the EV-SOMCRR-EZKIT carrier board or a custom carrier board. The EV-21569-SOM and EV-SOMCRR-EZKIT boards may be purchased as a bundle (EV-21569-EZKIT), providing fast and easy evaluation of the processor core and system peripherals/interfaces. The EV-21569-SOM module requires the CrossCore® Embedded Studio (CCES) development tools to enable developers to achieve faster time to market. The development environment aids advanced application code development and debug, such as: Create, compile, assemble, and link application programs written in C++, C, and assembly Load, run, step, halt, and set breakpoints in application programs Read and write data and program memory Read and write core and peripheral registers When used without the EV-SOMCRR-EZKIT carrier board, the EV-21569-SOM board requires an external in-circuit emulator (ICE-1000 or ICE-2000) be connected to the JTAG header.