Data Sheet

Page 12 ams Datasheet
Document Feedback [v1-00] 2016-Dec-23
CCS 811 − Application Information
The recommended application circuit for CCS811 is shown
below.
Figure 8:
Recommended Application Circuit
Note(s):
1. Pull-up resistors for SCL and SDA assumed will be part of host system.
2. AUX Pin on CCS811 can be used for optional ambient temperature sensing, if not used leave unconnected.
3. If power is not an issue, nWake can be connected to ground if a spare GPIO is not available on the host processor.
Host System Software Requirements
1. The minimum level of driver support that a host system
needs is read and write I²C transactions of data bytes
where the nWAKE pin is asserted at least tAWAKE before
the transaction and kept asserted throughout.
2. An Interrupt handler is also recommended to tell the
application code that the device has asserted an
interrupt.
Application Information
Host
Processor
V
DD
4K7
SDA
ADDR
SCL
V
DD
6
GND
CCS811
Digital VOC sensor
4K7
Part of host
system
1uF
GPIOx
SDA
ADDR
SCL
nWAKE