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Unformatted text preview: ( ) d iA Ap V + d V d i + V L R Solution: Problem 3: Suppose that a PIN photodiode has a depletion width of 30 m , a carrier velocity of m/s, and a junction capacitance of 6 pF. 4 5 10 a) Compute the transit-time-limited bandwidth. b) What is the largest load resistance that will not affect the bandwidth just calculated? c) What is the bandwidth if the load resistance is 10,000 ? Solution: Problem 4: Consider the current-to-voltage converter in the below figure . The PIN detector has the responsively of 0.5 A W and the incident optical power is -34 dBm. The feedback resistance is 10 k and the shunt capacitance of the feedback network is 0.2 pF. Compute a) The output voltage b) The 3-dB bandwidth A d i d i 1 R 1 d v i R = + AB V + Current to Voltage Converter Solution:...
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- Spring '11