NXP Semiconductors 8CH-DMIC, User Manual

Page: 7 / 25

Table 4. Main features
Board feature Processor feature used Description
Interfacing with Main board 14-pin connector used for DMIC board connection with the
main board
Power Input power ranges from 1.8 V
to 3.3 V
Typically, 1.8 V power is used for DMICs, and other interfaces,
however, 3.3 V power also works.
Note: MCP1256T DC converter to convert 1.8 V input power
supply to 3.3 V power supply for onboard LEDs.
Clock Four clocks: CLK01, CLK23,
CLK45, and CLK67 Clocks are used for 11 DMICs available on board. Clocks can
be combined with jumpers J5, J14, and J15 for use with boards
that do not have all the clocks available. Refer to
Table 23
for settings.
DMIC array
11 DMICs; at most, eight DMICs are in use simultaneously.
DMIC data signals:
• DATA01
• DATA23
• DATA45
• DATA67
1.7 Connectors
Table 5. Connector detail
Part identifier Connector type Description
J1 2x7-pin connector For 8-CH DMIC board connection with the main board
The table below describes the pin description of J1 connector.
Table 6. Interface connector pin detail
Pin Signal Direction
1 VDD -
2 VDD -
3 CLK01 I
4 DATA01 O
5 CLK23 I
6 DATA23 O
7 CLK45 I
8 DATA45 O
9 CLK67 I
10 DATA67 O
Table continues on the next page...
NXP Semiconductors
Overview
Eight-channel DMIC Board User Manual, Rev. 2, 15 March 2022
User Guide 7 / 25