ADC 6021 Specifiche Scaricare il pdf (Pagina 52)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

Table 25: V1P2S Truth Table

V1P2S_CTRL.

SLP_S3_B V1P2S

V1P2S_SEL V1P2S_EN

1 0 1 Off

1 1 1 On

x x 0 Off

V1P2SX:

ThisvoltagerailisusedtosupplytheSoCSFRviaaninternalswitchfromVDDQ.

Table 26: V1P2SX Power Switch Specication

Description Value [max, mΩ]

Input power path board resistance 20

Output power path board resistance 20

Input, output rails wirebond & internal FET RDS-ON 160

Themaximumcurrentis155mA,switchedinternallyandcontrolledviatheSoCSLP_S0iX_Bsignal.

9.6.7 Power Rail VSYSU

VSYSUisthevoltagerailthatsourcespowerofVSYSthroughanexternalpowerswitch.Thispowerdomainisusedto

sourcecommunicationandthemodem.TheexternalpowerswitchisgeneratedviaaP-channelFET.

MYXPM6021 provides an enable signal VSYSU_EN_B supplied by VSYS, driving the gate of the external FET. The

MYXPM6021alsoprovidesafeedbackinputsignalVSYSU_FBtocontroltheslewrateandlimittheinrushcurrent.

VSYSUexternalP-channelpowerswitchparameters:

Rdson (Vgs=4V) 15-35mohm

Input capacitance, Ciss 750-2315pF

Output capacitance, Coss 265-900pF

Reverse transfer capacitance, Crss 240-800pF

9.6.8 Power Rail VSYS_SX

VSYSUisthevoltagerailthatsourcespowerofVSYSthroughanexternalpowerswitch.Theexternalpowerswitchis

generatedviaaP-channelFET.

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ADC 6021 Specifiche Pagina 52