Signal Analyzer Upload CSV, .wav, or .mp4 Use Test Signal CSV Sample Rate (Hz): Generate CSV No Operation FFT (Spectrum) Amplitude Modulation (AM) Double Sideband Supressed Carrier (DSBSC) Parameters Actual Sample Rate (fs): -- Hz By default, the test signal is 5 Hz, and the carrier signal is 50 Hz.

Signal Analyzer Upload CSV, .wav, or .mp4 Use Test Signal CSV Sample Rate (Hz): Generate CSV No Operation FFT (Spectrum) Amplitude Modulation (AM) Double Sideband Supressed Carrier (DSBSC) Parameters Actual Sample Rate (fs): -- Hz By default, the test signal is 5 Hz, and the carrier signal is 50 Hz.

  Why Processor Clock Speed Is Not Increasing Why processor clock speed is not increasing significantly in recent years Processor clock speeds have mostly plateaued over the past decade—not because engineers stopped improving CPUs, but because they ran into physical and practical limits. 1. Power and heat limits Increasing clock speed requires higher voltage, which increases power consumption dramatically. Power roughly scales with frequency and voltage More power = more heat Too much heat damages chips or forces throttling Modern CPUs are already near safe thermal limits, so pushing frequency much higher isn’t practical without exotic cooling. 2. End of Dennard scaling For decades, smaller transistors meant: Lower power Higher speed That trend broke down around the mid-2000s. Now smaller transistors don’t red...

  CPU vs Software Performanc Are CPU performance and software performance related? CPU performance (hardware side) This is about how fast your processor can execute instructions. It depends on things like: Clock speed (GHz) Number of cores/threads Architecture (e.g., Intel vs AMD designs) Cache size and efficiency Software performance (software side) This is about how efficiently a program runs. It depends on: Algorithm efficiency (good vs bad logic) Code optimization How well it uses hardware (multithreading, vectorization, etc.) Memory and I/O usage How they’re related They directly influence each other: Better CPU → faster software (usually) A powerful CPU can brute-force inefficient software and still run it reasonably well. Better software → better CPU usage Well-o...

VHDL Programming of Logical Function VHDL Programming of logical function: F = !x1!x2!x3 + x1!x2x3 + x1x2!x3 + x1x2x3 The logical function can be implemented in VHDL by defining an entity (inputs/outputs) and an architecture (logic implementation). Boolean expressions are implemented using logical operators such as AND, OR, and NOT. Observations & Data Write the VHDL program, simulate it, generate RTL schematic, and observe waveforms using test bench. Procedure Follow Xilinx ISE steps for coding, simulation, and RTL synthesis. Questions Simplify the expression using Boolean postulates: CMOS Inverter Characteristics ...

Design of a 12-bit CPU with Basic Instructions A Central Processing Unit (CPU) is the core component of a computer responsible for executing instructions. It performs arithmetic, logical, and control operations. Modern CPUs are integrated as microprocessors and may include multiple cores and peripheral components. The CPU mainly consists of: Arithmetic Logic Unit (ALU): Performs arithmetic and logical operations Control Unit (CU): Fetches, decodes, and executes instructions Registers Registers are fast storage elements used inside the CPU: Instruction Register – stores current instruction Data Register – stores intermediate data Memory Types Registers – fastest access Main Memory – temporary storage Secondary S...

Design of 8-bit Bi-Directional Register A shift register is a sequential circuit that stores digital data and moves stored bits in a specific direction. It is widely used in serial data transfer, data conversion (SIPO/PISO), arithmetic operations, and delay elements. It consists of cascaded flip-flops sharing a common clock. The basic types of shift registers are: SIPO: Serial In, Parallel Out PISO: Parallel In, Serial Out PIPO: Parallel In, Parallel Out Bi-directional shift registers Data Transfer Types Serial Transfer: Data is transferred one bit at a time over a single line. Parallel Transfer: Data is transferred simultaneously over multiple lines. Shift Operations Right Shift: Moves bits toward LSB (divides by 2). Left Shift: Move...

Design of 8-bit Synchronous Counter A counter is a sequential circuit that counts pulses and is widely used for event counting, frequency division, timing, and control operations. Its outputs progress in a predictable repeating pattern, advancing one state per clock pulse. The modulus (m) of a counter is the number of states in its cycle. A counter with m states is called a modulo-m or divide-by-m counter. Fig.1: General Structure of a counter’s state diagram—a single cycle Ripple Counters An n-bit binary counter can be constructed using n flip-flops. Each bit toggles when the preceding bit changes from 1 to 0, generating a carry to the next higher-order bit. This “rippling” of the carry gives the ripple counter its name. Synchronous Counte...