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A 4-bit synchronous counter using JK flip-flops. In a synchronous counter, the clock inputs of the flip-flops are connected, and the common clock simultaneously triggers all flip-flops. Consequently, all of the flip-flops change state at the same time (in parallel). For example, the circuit shown to the right is an ascending (up-counting) four ...
4-digit up/down counter, decoder and LCD driver, output latch 40 MM74C945: 74x946 1 4.5-digit counter, decoder and LCD driver, leading zero blanking 40 MM74C946: 74x947 1 4-digit up/down counter, decoder and LCD driver, leading zero blanking 40 MM74C947: 74x948 1 8-bit ADC with 16-channel analog multiplexer analog three-state 40 MM74C948: 74x949 1
The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...
In telemetry applications, a frame synchronizer is used to locate frame boundaries within a serial pulse-code modulated (PCM) binary stream. The frame synchronizer immediately follows the bit synchronizer in most telemetry applications. Without frame synchronization, decommutation is impossible. Frame-synchronized PCM stream
For power-of-2 integer division, a simple binary counter can be used, clocked by the input signal. The least-significant output bit alternates at 1/2 the rate of the input clock, the next bit at 1/4 the rate, the third bit at 1/8 the rate, etc. An arrangement of flipflops is a classic method for integer-n division. Such division is frequency ...
Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation is an oversampling method for encoding signals into low bit depth digital signals at a very high sample-frequency as part of the process of delta-sigma analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
The VHDL code that implements this architecture is portable. The SBA allows to accelerate the development of reconfigurable virtual instrumentation [ 2 ] systems. Science and engineering are based on measurements and comparisons, and each field requires a set of both standard and specialised (ad hoc) instruments to make these measurements.
Incremental encoder interfaces commonly use a quadrature decoder to convert the A and B signals into the direction and count enable (clock enable) signals needed for controlling a bidirectional (up- and down-counting) synchronous counter. Typically, a quadrature decoder is implemented as a finite-state machine (FSM) which simultaneously samples ...