Output data ratio of a 8-bit PCM-TDM system sampling 24 voice channels, comparing these using u-law at the rate of 8 kHz and with a I frame alignment word, is
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- Output data ratio of a 8-bit PCM-TDM system sampling 24 voice channels, comparing these using μ -law at the rate of 8 kHz and with a I frame alignment word, is ?For each of the following pairs of sequences, ?[?] represents the input to an LSI system with unit- sample response h[?]. Determine each output ?[?]. Sketch your results.12-21. For a 16-QAM modulator with input bit rate fb = 10 Mbps and carrier frequency fc = 60 MHz, calculate the minimum bilateral Nyquist rate and baud rate. Tracea schematic of the output spectrum
- Determine the following if the mark frequency of 50 kHz, a space frequency of 54 kHz, and an input bit rate of 4 kbps. the peak frequency deviation, minimum bandwidth baud for a binary FSK signalAssume the channel bandwidth is 3100 Hz and the maximum data rate is 35 kb/s. To improve the maximum data rate by 60%, how many times should the signal-to-noise-rate (SNR) increase? Based on the improved maximum data rate and SNR, if the SNR further increases by 10 times, can the maximum data rate further increase by 20%?For a binary pcm, if the number of bits per sample is 8, then estimate the signal to quantization noise ratio.
- From memory, sketch the transistor symbol for a pnp and an npn transistor, and then insert theconventional flow direction for each current.Please provide a complete solution and explain how did you get the answer thank you. For 16-PSK and a transmission system with a 10 kHz bandwitdth, determine the maximum bit rate.By using BPSK modulation from a communication channel, voice transmission is made at a data rate of 240 kbps. However, due to the low speed, it is desired to increase this rate to 3*240 kbps, but to keep the bandwidth constant while this process is being done. In order to do this, which and how many levels of modulation should be preferred. ( Binary data rate of 3 * 240 kbps transmitted per second, symbol rate should be obtained to provide the same bandwidth as modulation.)
- A PCM system is used to transmit base4 signal of 512 level, the input signal works in the range between (30 to 70) MHz. Find the bit rate and signal to noise ratio in dB? Note that: the step size is considered to be double of system levels? *For a 16-PSK modulator operating to 10 MHz bandwidth and a carrier frequency of 200 MHz, determine the maximum bit rate and the baud. Sketch the output spectrumThe clock select register for channel A in an MC68681 DUART has bits 0 through 3 set to 0, 0, 0, and 1, respectively. What is the baud rate of the transmitter? What is the bit-‐‑time (or duration) for each bit transmitted?