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Unformatted text preview: 10 P W = ( ) d V volts ( ) d iA Ap V − + d V d i − + V L R Problem 3: Suppose that a PIN photodiode has a depletion width of 30 m , a carrier velocity of 4 5 10 × m/s, and a junction capacitance of 6 pF. 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 Ω ? Problem 4: Consider the current-to-voltage converter in the below figure . The PIN detector has the respnsivity of 0.5 A W and the incident optical power is -34 dBm. The feedback resistance is 10 k Ω and the shunt capacitance of the feedback network is 0.2 pF. Compute a) The output voltage b) The 3-dB bandwidth d i d i 1 R 1 d v i R = − + − AB V + − Current to Voltage Converter...
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This note was uploaded on 03/23/2011 for the course EEE 174 taught by Professor Kasab during the Spring '11 term at ASU.
- Spring '11