400G QSFP-DD SR8 100mTransceiver

1. QSFP-DD siv hauv av (GND) rau tag nrho cov teeb liab thiab muab khoom (lub zog). Tag nrho cov muaj nyob rau hauv QSFP-DD module thiab tag nrho cov module voltages raug xa mus rau qhov no po-te-nial tshwj tsis yog tau sau tseg. Txuas cov no ncaj qha mus rau lub party board signal-common ground plane.2. VccRx, VccRx1, Vcc1, Vcc2, VccTx thiab VccTx1 yuav tsum tau siv concurrently.Requirements defined for the host side of the Host Card Edge Connector. VccRx, VccRx1, Vcc1, Vcc2, VccTx thiab VccTx1 tej zaum yuav muaj kev sib txuas hauv nruab nrab hauv qhov module hauv ib qho kev sib xyaw ua ke. Lub connector Vcc pins yog txhua qhov ntsuas rau qhov siab tshaj plaws tam sim no ntawm 1000 mA.3. Txhua tus neeg muag khoom tshwj xeeb, tshwj xeeb thiab tsis txuas tus pins yuav raug txiav nrog 50ohms rau hauv av ntawm tus tswv tsev. Pad 65 (Tsis Txuas) yuav tsum tau tso tseg tsis txuas rau hauv lub module. Cov neeg muag khoom tshwj xeeb thiab cov ntaub ntawv tshwj xeeb yuav tsum muaj qhov impedance rau GND uas ntau dua 10K ohms thiab tsawg dua 100pF.