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Xilinx DS160 Spartan
Xilinx DS160 Spartan

a CMOS, 125 MHz Complete DDS Synthesizer AD9850
a CMOS, 125 MHz Complete DDS Synthesizer AD9850

... of an 8-bit control word (byte). The first byte controls phase modulation, power-down enable, and loading format; Bytes 2 to 5 comprise the 32-bit frequency tuning word. Serial loading is accomplished via a 40-bit serial data stream on a single pin. The AD9850 Complete DDS uses advanced CMOS technol ...
UNIT-3 (1) - WordPress.com
UNIT-3 (1) - WordPress.com

... meaning two) and maintain a given output state indefinitely unless an external trigger is applied forcing it to change state. The bistable multivibrator can be switched over from one stable state to the other by the application of an external trigger pulse thus, it requires two external trigger puls ...
guide_pc2181e
guide_pc2181e

CMOS, 125 MHz Complete DDS Synthesizer AD9850
CMOS, 125 MHz Complete DDS Synthesizer AD9850

... occur at multiples of the Reference Clock Frequency ± the selected output frequency. A graphical representation of the sampled spectrum, with aliased images, is shown in Figure 17. ...
CPS311 Lecture: Introduction to Combinatorial Logic last revised August 5, 2015
CPS311 Lecture: Introduction to Combinatorial Logic last revised August 5, 2015

Creating your design: Timing (part2)
Creating your design: Timing (part2)

... Reducing Interconnect Power/Energy Same philosophy as with logic: reduce capacitance, voltage (or voltage swing) and/or activity A major difference: sending a bit(s) from one point to another is fundamentally a communications /networking problem, and it helps to consider it as such. Abstraction lay ...
ADAV4601 数据手册DataSheet 下载
ADAV4601 数据手册DataSheet 下载

... modulated PWM stream to support digital amplifiers. The ADAV4601 includes multichannel digital inputs and outputs. In addition, digital input channels can be routed through integrated sample rate converters (SRC), which are capable of supporting any arbitrary sample rate from 5 kHz to 50 kHz. Compre ...
DESIGN AND IMPLEMENTATION OF COMPARATOR FOR SIGMA-DELTA MODULATOR Noor Aizad
DESIGN AND IMPLEMENTATION OF COMPARATOR FOR SIGMA-DELTA MODULATOR Noor Aizad

... inverter pair) amplifies the charge imbalance into digital voltage levels on the differential nodes. 1.2.2 SPECIFIC REGENERATIVE STRUCTURE The following parameters were taken into consideration before finalizing the specific chosen architecture for the latch. 1) SPEED: A comparator with only two inv ...
Octal bus buffer with 3 state outputs (inverted)
Octal bus buffer with 3 state outputs (inverted)

BWR-15/165-D48
BWR-15/165-D48

... and isolated (1000Vdc) modules are available with ±5, ±12 or ±15 Volt outputs. Input voltage ranges are either 18-36 Volts ("D24" models) or 36-72 Volts ("D48" models). Although their overall size is 50-75% smaller than many similarly rated power modules, these 1" x 1" BWR Models are exact, drop-in, ...
Operational Amplifiers (Op Amps)
Operational Amplifiers (Op Amps)

Transistor–transistor logic (TTL) is a class of digital circuits built from
Transistor–transistor logic (TTL) is a class of digital circuits built from

... constructed to be symmetrical. That is, the drain and source connections to any individual transistor can be interchanged without affecting the performance of either the transistor itself or the circuit as a whole. When the N- and P-type FETs are connected as shown here and their gates are driven fr ...
2006-103 MANUAL - Cross Technologies, Inc.
2006-103 MANUAL - Cross Technologies, Inc.

Quad Monitor Board Test Plan - dcc
Quad Monitor Board Test Plan - dcc

... sum of the two outputs. The summing amplifier has a gain of 1/3, so for +/15v in the output will be 5v. IC10 is an r.m.s. converter chip, which calculates the true r.m.s. output current. It is followed by an amplifier. The overall scaling factor of the r.m.s. converter and amplifier circuits is 1/3. ...
FMS6501A 12x9 Video Switch Matrix with Input Clamp, Input Bias
FMS6501A 12x9 Video Switch Matrix with Input Clamp, Input Bias

... down and placed in a high-impedance state with the ENABLE bit. This function can be used to mute video signals, to parallel multiple FMS6501A outputs, or to save power. When the output amplifier is disabled, the high-impedance output presents a 3 kΩ load to ground. The output amplifier typically ent ...
Nptel Reference
Nptel Reference

EE 4429 Practice 3
EE 4429 Practice 3

... to input noise. If the input signal Vin shows noise near VT, then the output signal Vout will show some corresponding chattering (i.e. bouncing between low and high), for the simple comparator in (a). The Schmitt Trigger, as in (b), shows more robustness. ...
MAX1425 10-Bit, 20Msps ADC General Description Features
MAX1425 10-Bit, 20Msps ADC General Description Features

... code. A DAC converts the ADC result back into an analog voltage, which is subtracted from the held input signal. The resulting error signal is then multiplied by two, and this product is passed along to the next pipeline stage where the process is repeated. Digital error correction compensates for o ...
NB4N441 - Serial Input PLL Clock Synthesizer
NB4N441 - Serial Input PLL Clock Synthesizer

Anti-Heckler - The Random Information Bureau
Anti-Heckler - The Random Information Bureau

... experimentally) of approximately 43dB (130 times) over a bandwidth of 100Hz-10kHz, which is acceptable for speech. Our 1mV pk-pk signal is thus amplified to 130mV pk-pk, which is 90mV r.m.s. The output level is 775mV r.m.s., and thus we need a further gain stage of 8.6 (19dB) to reach the correct le ...
16-Bit Bus Transceivers And Registers With 3
16-Bit Bus Transceivers And Registers With 3

Differential Amplifier Circuits
Differential Amplifier Circuits

AD9850 Data Sheet
AD9850 Data Sheet

... DDS technology coupled with an internal high speed, high performance, D/A converter and comparator, to form a complete digitally programmable frequency synthesizer and clock generator function. When referenced to an accurate clock source, the AD9850 generates a spectrally pure, frequency/ phase-prog ...
AND Gate - Book Spar
AND Gate - Book Spar

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Flip-flop (electronics)



In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information. A flip-flop is a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and will have one or two outputs. It is the basic storage element in sequential logic. Flip-flops and latches are a fundamental building block of digital electronics systems used in computers, communications, and many other types of systems.Flip-flops and latches are used as data storage elements. A flip-flop stores a single bit (binary digit) of data; one of its two states represents a ""one"" and the other represents a ""zero"". Such data storage can be used for storage of state, and such a circuit is described as sequential logic. When used in a finite-state machine, the output and next state depend not only on its current input, but also on its current state (and hence, previous inputs). It can also be used for counting of pulses, and for synchronizing variably-timed input signals to some reference timing signal.Flip-flops can be either simple (transparent or opaque) or clocked (synchronous or edge-triggered). Although the term flip-flop has historically referred generically to both simple and clocked circuits, in modern usage it is common to reserve the term flip-flop exclusively for discussing clocked circuits; the simple ones are commonly called latches.Using this terminology, a latch is level-sensitive, whereas a flip-flop is edge-sensitive. That is, when a latch is enabled it becomes transparent, while a flip flop's output only changes on a single type (positive going or negative going) of clock edge.
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