Circuits & Schematics: CLOCK - 7

61. Integrator Enables Simple Ohmmeter with Gigohm Range
    Stefano Salvatori
    Circuits Measurement Texas Instruments INA105 IVC102 LM311
    .. guarantees the precision of the ohmmeter. External digital-control circuitry can measure delta time by counting the clock periods between the start and the stop events. At the end, the control circuit can generate a reset signal for ...
    Mar 22, 2021

62. Bootstrapping allows single-rail op amp to provide 0V output
    Jim Williams
    Circuits Analogue Design Supply Linear Technology LTC1150
    .. scheme achieves the desired characteristics with minimal parts count. IC 1 , a chopper-stabilized amplifier, features a clock output. This output switches Q 1 , providing drive to the diode-capacitor charge pump. The charge pump's ...
    Feb 4, 2021

63. Where is the wiper?
    Chuck Wojslaw
    Circuits Digital ON Semiconductor CAT5113 CAT5114
    .. signal advances both the wiper and the counter. The pin of the DPP responds to negative-edge triggering, and the clock input of the counter responds to positive-edge triggering. If the signal driving the line is a pulse (a common ...
    Jan 20, 2021
64. Clock-recovery scheme suits low-SNR systems
    Circuits Digital Texas Instruments CD74HC04 NE5534 TL071A
    .. Brugarolas EDN A clock-recovery architecture can operate with NRZ digital signals, even at low SNRs. A clock-recovery subsystem is ...
    Sep 30, 2020
65. Injection-lock a Wien-bridge oscillator
    Glen Brisebois
    Circuits Oscillators Analog Devices LT1468-2 LTC2361 LTC6255
    .. was purely analog and had no “10-MHz reference input” on the back to allow it to be synchronized with the ADC clock. The result is substantial spectral leakage in the FFT, so that it looks more like a circus tent than a single ...
    May 7, 2020
66. Scalable latch requires no capacitors or clock
    Circuits Analogue Design Fairchild BF256C
    .. noise back into the signals of interest. The circuit in Figure 1 is a scalable one-of-N latch that has the advantages of no clock and no capacitors, and it has an intrinsic active-channel indication. Figure 1. This one-of-N latching circuit ...
    Feb 18, 2020
67. Single-Chip Circuit Delivers Direction Information In Encoders
    Guido Nopper
    Circuits Measurement Texas Instruments SN74HC14 SN74HC74
    .. Incremental encoders normally provide two output signals, usually named Channel A and Channel B. These signals deliver both clock information, depending on resolution, and rotating speed. They differ only in phase margin (for example, 90 for ...
    Dec 30, 2019
68. How to Read Measurement Data of a Dial Indicator and Send This Data to a Personal Computer (PC)
    Circuits Arduino Analogue Design Measurement Texas Instruments LM339-N
    .. of working with that DI , it turned out that the output port has three lines - the Ground( GRND ), the Data ( DT ) and the Clock line ( CLK ). Signals shapes of these lines are shown in Figures 3, 4, and 5. Figure 3. One complete DI data ...
    Jul 25, 2019
69. A circuit to use PIC peripheral outputs simultaneously
    Circuits Interfaces Microcontrollers Usage ON Semiconductor 2N7000 BSS138
    .. circuit was developed for a portable instrument using a 28-pin PIC MCU from Microchip Technology running an RTC (real time clock), EEPROM, and COG (chip on glass) LCD on the I 2 C bus, and a digital pot and microSD card on the SPI bus. The ...
    May 20, 2019
70. Simple circuit controls stepper motors
    Circuits Analog Devices AD9833
    .. control. Stepper-motor controllers can be simple (Figure 1), but they require a variable-frequency square wave for the clock input. The AD9833 low-power DDS (direct-digital-synthesis) IC with an on-chip, 10-bit DAC is ideal for this ...
    Mar 20, 2019

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