Hi Yuan, Yes, you can replace the LM96550 with the LM96551 . In the LM96551 , you should connect put 10uF || 0.1uF bypass caps between VPP (pins 4-7 & 54-57) and VPF (pins 8 & 53). Similarly, put 10uF || 0.1uF bypass caps between VNN (pins 11-14 & pins 47-50) and VNF (pins 10 & 51). Regards, Charles
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