| 摘要 |
An optical signal receiver for operating over a very wide frequency passband having 3dB points at a few kHz and at 1 GHz or beyond, comprises an input stage (Q1, Q2), an amplifier (Q3 to Q6), an output stage (Q7), and a negative feedback resistance (R26) of one to several kilohms. In order to obtain high amplifier gain, the load resistance (R8) of the input stage is increased to the point where it sets up, together with the input capacitance, a lowpass filter pole within the receiver passband, said pole being compensated immediately thereafter by a link (10, C6) between the first and second stages (Q3 and Q4) of said amplifier. |
