Fully-integrated photoelectric conversion receiver based on standard CMOS (complementary metal-oxide-semiconductor transistor) process
A photoelectric conversion and receiver technology, applied in the field of communications, can solve the problems of slow decline of the optical frequency response curve, small channel attenuation, limited performance of the photoelectric receiver, etc., to achieve the effect of improving Jitter and bit error rate
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[0031] The present invention will be further described below in conjunction with the embodiments in the accompanying drawings:
[0032] First introduce the main circuit modules:
[0033] PD: Photodetector ( figure 2 module in 1)
[0034] TIA: Transconductance amplifier, mainly realizes the conversion of current to voltage ( figure 2 in module 2)
[0035] Equalizer: Equalizer to compensate for the high frequency components of the signal ( figure 2 in module 3)
[0036] LA: Limiter, amplifies the signal ( figure 2 in module 4)
[0037] DCOC: DC Skew Cancellation Module ( figure 2 in module 5)
[0038] OutputBuffer: output buffer ( figure 2 in module 6)
[0039] Slope Detector: A slope detector that converts an AC signal to a DC signal ( figure 2 module 7) in the Figure 4 The circuit structure shown is implemented, the input signal is first passed through a high-pass filter, and then a shaper (Rectifier) is performed to obtain a feedback control component cont...
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