16
3.5 NFC Setting
The n-SPK offers a convenient way to establish and terminate Bluetooth connection by NFC. To get the benefits, n-SPK must
have an NFC tag with its Bluetooth address and some related information and remote devices need to support the NFC feature.
The remote device just touch the NFC tag of n-SPK, it will get the information of n-SPK, and APPs on the remote device may
deal with Bluetooth connection or something. It reduces much bother of Bluetooth operation, especially for some persons who
aren’t similar with that. The related settings are described as below.
3.5.1 NFC Detection Enable
Configure whether NFC is enabled. If NFC function is enabled, the NFC tag with the NFC detection circuit is must.
3.5.2 NFC Stable Time
It’s the judging time of a valid NFC signal. When the remote device touches the NFC tag of n-SPK, if NFC signal is stable over
this time, it determines that the NFC function of n-SPK is triggered successfully. Else n-SPK will ignore the signal as noise.
Figure 3.7 NFC reference circuit, NFC tag connect to TP2, TP3.
3.6 Factory Volume Level (For Master Reset Usage)
When n-SPK is master reset, the volume will be set to the default value.
3.6.2 Audio Volume Level(Music)
The default value for the volume of music.
3.6.3 Voice Volume Level(SCO)
The default value for the volume of voice.
3.7 Connection Setting
The n-SPK could establish Bluetooth connection with a remote device. The configurations listed below control the behavior
regarding Bluetooth connection.
NFC
SY S_PWR
P0_4
Q2
STS2306
3
1
2
R16
1M
1
2
G
D
S
Q1
STS2301
1
3
2
D3
2
1
D4
CDSU400B
1
2
D6
CDSU400B
1
2
R12
120/1%
1
2
R14
270/1%
1
2
R13
1K
1
2
R15
NP-0805
TP3
1
TP2
1
MFB
For NXP 203F NFC type,
which build-in rectifier circuit
MFB
P0_4
