Description
The AK002D4-24 is an IC FET digital attenuator consisting of four monolithic attenuators with
an LSB of 1 dB and a total attenuation of 15 dB with all attenuators connected.
The device has integral drivers for each bit requiring less than 4 mA per bit.
DC supply voltages of ±5 V are required.
The attenuator is packaged in a 14 lead plastic SOIC.

Features
* Attenuation in 1 dB Steps to 15 dB
* Integral Driver ±5 V Supply Voltages
* Low Cost SOIC-14 Plastic Package

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Description
The AT002D4-31 is an MMIC FET digital attenuator consisting of four monolithic attenuators with an LSB of 2 dB and a total attenuation of 30 dB with all attenuators connected.
This attenuator is recommended for fast response, low power consumption AGC circuits. Typical applications include AGC circuits for radar processing, instrumentation and levelers in RF equipment.

Features
* Low DC Power Consumption
* Attenuation in 2 dB Steps to 30 dB with High Accuracy
* 14 Lead Hermetic Surface Mount Package
* Capable of Meeting MIL-STD Requirements6

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PRODUCT DESCRIPTION
 The ALPHA Semiconductor AS1117 is a low power positive-voltage regulator designed to meet 800mA output current and comply with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers.
The AS1117 features very low quiescent current and very low dropout voltage of 1.2V at a full load and lower as output current decreases.
AS1117 is available as an adjustable or fixed 2.85V, 3V, 3.3V, and 5V output voltages.
The AS1117 is offered in a 3-pin surface mount package SOT-223, TO-252, TO-220, SOT-89 & TO-263.
The output capacitor of 10mF or larger is needed for output stability of AS1117 as required by most of the other regulator circuits.
Use of ALPHA Semiconductor’s design, processing and testing techniques make our AS1117 superior over similar products.

FEATURES
* Guaranteed 800mA Output
* Three Terminal Adjustable Or Fixed 1.5V, 2.5V, 2.85V, 3V, 3.3V & 5V
* Very Low Quiescent Current
* Low Dropout Voltage Of 1.2 Volts At Full Load
* Extremely Tight Load And Line Regulation
* Very Low Temperature Coefficient
* Fixed 2.85V Device For SCSI-II Active Terminator
* Logic-Controlled Electronic Shutdown
* Internal Overcurrent Limiting & Thermal Overload Protection
* Surface Mount Package SOT-223, TO-252, TO-220, SOT-89, TO-263, & SO-8

APPLICATIONS
* SCSI-II Active Terminator
* Portable/ Palm Top / Notebook Computers
* Battery Chargers
* Disk Drives
* Portable Consumer Equipment
* Portable Instrumentation
* SMPS Post-Regulator

AS1117U
AS1117U-X

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Features
* Tight Parameter Distribution
* Available as Singles and Pairs
* 100% DC Tested
* Designed for High Volume Commercial

Applications
* Available in Tape and Reel Packaging

Description
 These low cost, surface mountable plastic packaged silicon mixer Schottky diodes are designed for RF and microwave mixers and detectors.They include low barrier diodes and zero
bias detectors, combining Alpha’s advanced semiconductor technology with low cost packaging techniques.
 All diodes are 100% DC tested and deliver tight parameter distribution, minimizing performance variability.They are available in SC- 70, SC-79, SOD-323, SOT-23 and SOT-143 packages.Wiring configurations include singles, common cathode, series pairs and unconnected pairs. Applications include low noise receivers used in high sensitivity ID tags, wireless systems, radio designs and may be used at frequencies to 10 GHz. SPICE model parameters are included as a design tool.

SMS7630-079 SMS1546-011 SMS7621-011 SMS7630-011 SMS1546-001
SMS7621-001 SMS7630-001 SMS1546-005 SMS7621-005 SMS7630-005

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