SECURITY
STATUS
NXP Semiconductors
QN908x
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All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Application note
Rev. <MM.mm> — 27 April 2016
28 of 33
5.4 Notes for using lithium battery as power supply
When use lithium battery as the power supply for QN9080 module, some tips need to be
pay attention to.
To avoid current leakage from QN9080 USB data line, it is a must to leave JP16
open.
To avoid current leakage from Tri-color LED, it is recommended to remove the
resistor R48, R49 and R50.
Figure 35 Lithium battery using for QN908x DK board
5.5 Statements
FCC Compliance Statement
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from
that to which the
receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
