All Sections: de - 3

21. KeyLock
    Circuits
    .. known as electrical key-lock can de found in many versions, but I will demonstrate you another interesting workaround of that device. Specificity of that ...
    Oct 31, 2007

22. HCPL-181-00AE — Datasheet Broadcom
    Datasheets Broadcom HCPL-181-00AE
    

    DC-Input Lead Free General Purpose Phototransistor Optocoupler The HCPL-181-000E optocoupler contains a light emitting diode optically coupled to a phototransistor. It is packaged in a 4-pin mini-flat SMD package with a 2.0 mm profile. The small ...
    Jan 18, 2020

23. LMV771MG — Datasheet National Semiconductor -
    Datasheets National Semiconductor LMV771MG
    

    .. operate over the voltage range of 2.7V to 5.0V and all have rail-to-rail output. The LMV771/LMV772/LMV772Q/LMV774 family is de Simulation Model Specifications: Amplifier Type: Low Noise Bandwidth: 3.5 MHz Base Number: 771 Gain Bandwidth: 2 MHz ...
    Feb 4, 2008
24. HCPL-181-06AE — Datasheet Broadcom
    Datasheets Broadcom HCPL-181-06AE
    

    DC-Input Lead Free General Purpose Phototransistor Optocoupler The HCPL-181-000E optocoupler contains a light emitting diode optically coupled to a phototransistor. It is packaged in a 4-pin mini-flat SMD package with a 2.0 mm profile. The small ...
    Jan 18, 2020
25. Morse Code Beacon Keyer
    Circuits
    .. the message is sent to a relay which can key a CW transmitter. The keyer can output either a one-shot message such as CQ DX DE CALLSIGN, or a continuous message. The continuous mode is useful for making low power (QRP) beacons. A One-shot ...
    Nov 16, 2008
26. Voltcraft
    Sites voltcraft.de
    Oscilloscopes, multimeters, testers.
    Read More
    May 3, 2008
27. Freezer Gadget Monitors Temperature History
    William Grill
    Circuits
    .. door was left not quit closed. After 2 hours the alarm chips on the hour. The controller chirps when a button closure is de-bounced and recognized. It continues to chirp out ~ every second, there after, to indicate when you have entered ...
    May 15, 2008
28. Interfacing an AVR controller to a GPS Mobile Phone
    Circuits
    .. tutorial at Sparkfun on how to use a GM862. There is also a forum , that has informations about GSM and GPS. roundsolutions.de , retailer for the GM862 with a great forum. Telit , all specs and guides for the GM862. Downloads Eagle schematics: ...
    Dec 1, 2008
29. Inexpensive Solution Protects Sensitive Devices From Surges
    Circuits
    .. 4 yields V C = 35.5 V. Thus, the clamping voltage is a little below the threshold voltage at 25 C. For higher temperatures, de-rating parameters must be considered. The steady state power dissipated by the 20-Ω resistor is: (5) ...
    Jun 13, 2013
30. SN74AS20DE4 — Datasheet Texas Instruments
    Datasheets Texas Instruments SN74AS20DE4
    

    Dual 4-Input Positive-NAND Gates 14-SOIC 0 to 70
    Mar 21, 2018

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