Digital Systems

Review of number systems and number base conversions Binary codes Boolean algebra Boolean functions Logic gates Simplification of Boolean functions Karnaugh map methods SOP-POS simplification NAND-NOR implementation

Combinational Logic: Half adder Half subtractor Full adder Full subtractor look- ahead carry generator BCD adder Series and parallel addition Multiplexer – demultiplexer encoder- decoder arithmetic circuits ALU

Designing with ROM and PLA Sequential logic: flip flops D T S-R J-K Master- Slave racing condition Edge & Level triggered circuits Shift registers Asynchronous and synchronous counters their types and state diagrams Semiconductor memories Introduction to digital ICs 2716 2732 etc. & their address decoding Modern trends in semiconductor memories such as DRAM FLASH RAM

Voltage to Frequency & Frequency to Voltage conversion Interfacing between TTL to MOS Introduction to A/D & D/A convertors & their types sample and hold circuits Multivibrators :Bistable Monostable Astable Schmitt trigger IC 555 & Its applications TTL PMOS CMOS and NMOS logic

introduction to BPSK & BFSK modulation schemes Shannon’s theorem for channel capacity Introduction to Digital Communication: Nyquist sampling theorem time division multiplexing PCM quantization error