Silicon Laboratories Inc. reported fourth-quarter FY21 revenue growth of 43 percent Y/Y to $208.68 million, beating the consensus of $200.2 million. Margins The non-GAAP gross margin expanded 280 bps to 61.4 percent. The non-GAAP operating margin contracted 240 bps to 16.3 percent. The non-GAAP EPS of $0.77 beat the consensus of $0.57. Silicon Labs held $2.04…