Micro Logics

SPECIFICATION: SPARTAN-6 FPGA BASED DESIGN. CLOCK GENERATION USING FPGA. PROGRAMMABLE. CAN CHANGE THE CLOCK FREQUENCY. 8 BIT VARIABLE DATA GENERATION USING FPGA. ENCODING AND DECODING USING FPGA. DDS BASED SINE WAVE GENERATION WITH INDIVIDUAL FREQUENCY DISPLAY. 100 Hz TO 500KHz FREQUENCY RANGE. ANALOG SIGNAL MULTIPLEXER. TEST POINTS FOR WAVEFORM. CAN CONNECT AND SEE THE WAVEFORMS IN DSO. USING XILINX SOFTWARE CAN SYNTHESIS ANY LOGICAL CIRCUITS AND CHECK THE WAVEFORM IN DSO.

 RF Generator – colpitts oscillator generates, 1 MHz frequency to useas carrier signal. AF Generator – low frequency signal 2 KHz is generated and used asthe modulation signal. Power supply – On board power supply provide +12v, - 12v andcurrent rating 150ma each. Collector Modulation – Amplitude modulation using BC107 transistor(NPN). Demodulation – Diode detection. Audio signal transmission.

Data Bits: 8 bit RZ Variable Data with sliding switch selection Different types of coding technique. Unipolar RZ coding and decoding Polar RZ coding and decoding Polar NRZ coding and decoding AMI coding and decoding Manchester coding and decoding Power Supply: +12V,-12V and +5V with 1000mA regulated DC supply 
with on board LED indication. Patch Chords: 2mm Banana socket. Various Test points are provided on board.

 On board analog signal of 5KHz Variable amplitude (0-5Vpp) Phase detector using PLL (LM 565 IC) Potentiometer is provided for Phase detector block to tune thephase. On board frequency divider network for Frequencymultiplication. Various test points are provided to see the waveforms at differentstage. 2mm banana sockets are provided for easy connection.

Analog Signal: On board sine wave – Variable frequency PCM Multiplexer: TDM output of 2 analog signal. PCM De-multiplexer: Reconstruction of 2 analog signal. PCM Modulator: Using A/D Conversion. PCM Demodulator: Using D/A conversion and LPF. Audio Signal: On board Audio signal generator. Power Supply: +12V,-12V and +5V with 1000mA regulated DCsupply with on board LED indication. Patch Chords: 2mm Banana socket. Various Test points are provided on board.

 Onboard Input Sinusoidal Signal: 2 kHz. Sampling Freq: 2 KHz, 4 KHz, 8 KHz, 16 KHz, 32 KHz (Selectable) Variable duty cycle: 10% to 90% Cut-off Freq: 3.4 kHz. Outputs: Sampling Amplifier & Sample Hold Amplifier Reconstruction: 2nd, 4th & 6th Order Butter worth LPF.

 On board sine wave generator of 2KHz as message signal.
 On board sine wave generator of 25KHz as carrier signal.
 Message and carrier both of variable amplitude(0-4Vpp).
 Balanced modulator using ic 1496.
 Potentiometer is provided for adjusting the modulation index.
 Demodulation using synchronous detection method.
 Potentiometer is provided for exact tuning.

 On board sine wave generator of 9KHz as message signal. On board sine wave generator of 10KHz as carrier signal. Both signal of variable amplitude (0-4Vpp). Frequency mixer using BJT.

ASK/FSK Modulation and Demodulation.Technical Specification: Data Bits: 8 bit RZ Variable Data with sliding switch selection. Carrier: On board 5 KHz-50 KHz Variable frequency and 0-5Vamplitude sine wave. ASK Modulator: Using IC CD4066 (Bilateral Switch). ASK Demodulator: Using IC TL084 with Low Pass Filler. FSK Modulator: variable carrier frequency Modulation using XR2206 FSK Demodulator: Demodulation using PLL method (using IC LM565). Data Format: 8 bit parallel data representation using LED’s Power Supply: +12V,-12V and +5V with 1000mA regulated DC supplywith on board LED

 On board Sine wave generator. Variable frequency range 500Hz-10KHz. Pre emphasis and de emphasis circuit using RC network. Adjustable cutoff frequency by slightly tuning the potentiometers.

Frequency Modulation and Demodulation Trainer Kit.Technical specifications AF Generator – Generates low frequency signals of 500 Hz and 5 KHz touse as a modulating signal. Regulated Power supply – On board power supply provide +15v, -15v, +5v,-5V and current rating 150ma each. Modulation – frequency modulation using XR-2206 with frequency ofoperation can be selected externally over a range of 0.01Hz to more than1MHz. Demodulation – frequency demodulation using general purpose PLLLM565.

Time Division Multiplexing and Demultiplexing Trainer Kit (TDM).Technical Specifications Input Sine waves: 2KHz, 1KHz, 500Hz, 250 Hz Synchronization Pulse Generation: using (Variable 0-5V) DC level Sampling Rate: 32 KHz Reconstruction: 4 order low pass butter worth filter Cut-off Freq: 3.4 kHz, Clock Recovery & Sync Detect- 2 of the fundamentals aspects using PLLTechniques

PCM & DPCM Modulation and Demodulation kit Analog Signal: On board sine wave frequency of 1 KHz-5 KHz and 0-4Vamplitude. PCM Modulator: Using A/D Conversion IC. PCM Demodulator: Using D/A conversion and LPF. Power Supply: +12V,-12V and +5V with 1000mA regulated DC supply with onboard LED indication.

Fiber optics communication trainer kit.Technical specification. Analog signals: 250 Hz, 500 Hz, 1 KHz sinusoidal signals with variableamplitude from 0-5V. Digital signals: 250 Hz, 500 Hz, 1 KHz & 2 KHz signals. DC: Adjustable over 0 to 5 Volts. Transmitter: Fiber optic LED with wavelength is 660nm. Receiver: FO- Phototransistor.

Amplitude Modulation and Demodulation.Technical Specifications RF Generator – Colpitts oscillator generates, 1 MHz frequency to use ascarrier signalAF Generator – low frequency signal 2 KHz is generated and used as themodulation signal Power supply – On board power supply provide +12v, - 12v and currentrating 150ma each Modulation – Amplitude modulation using (using IC XR2206)/BC107transistor (NPN) Demodulation – Envelop detector using Diode OA79.