User's Manual

Page 15 of 31
2.2.5.3 The connection between audio I/O and phone handle
The audio I/O signals offered by U6300 can be connected to a phone handle. The more detail information about
connection between phone handle and the Mini PCIe Interface is shown in table 2.9 below.
Table 2.9 The connection between phone handle and the Mini PCIe Interface
Signals
offered by
phone handle
The name of the correlative
pins in
Mini PCIe Interface
SN. of the Mini PCIe Interface Description
EAR_P SPK_OUT_P 5
Audio output data+
EAR_N SPK_OUT_N 7
Audio output data-
MIC_P MIC_P 1
Audio input data+
MIC_N MIC_N 3
Audio input data-
2.2.5.4 Reference circuit
The reference circuit of audio interface is shown in figure 2-11.
Figure 2-11 The reference circuit of audio interface