Cirrus Logic CS4207 - Manual (Page 10)

10 DS880F4
CS4207
1.2 Digital I/O Pin Characteristics
Input and output levels and associated power supply voltage are shown in the table below. Logic levels
should not exceed the corresponding power supply voltage.
Notes:
1. SDI output functionality also requires the VA and VL_IF rails to be at nominal levels.
Power
Supply
Pin Name
SW/(HW)
I/O Driver Receiver
VL_HD
RESET# Input - 1.5 V - 3.3 V
SDO Input - 1.5 V - 3.3 V
BITCLK Input - 1.5 V - 3.3 V
SDI (Note 1) Input/Output 1.5 V - 3.3 V 1.5 V - 3.3 V
SYNC Input - 1.5 V - 3.3 V
VA SENSE_A Input - 3.3 V - 5.0 V
VL_IF
GPIO1/
DMIC_SDA2
Input/Output 3.3 V 3.3 V
GPIO2 Input/Output 3.3 V 3.3 V
GPIO3 Input/Output 3.3 V 3.3 V
SPDIF_IN Input - 3.3 V
SPDIF_OUT Output 3.3 V -
GPIO0/
DMIC_SDA1
Input/Output 3.3 V 3.3 V
DMIC_SCL Output 3.3 V -