Mic Gain Switch (Sw5); Mic/Hp Lpbk, Audio Mode Switch (Sw6) - Analog Devices EZ-Board ADSP-BF518F Manual

Push Button and Switch Settings
The interface is shared with other on-board components, such as
SPORT1
the eMMC device and push buttons.

MIC Gain Switch (SW5)

The microphone gain switch (
connected to the top 3.5 mm jack (
0 dB, or –6 dB by turning position 1, 2, or 3 of
When the corresponding position for the desired gain is
positions must be
information about the audio codec.
Table 2-7. MIC Gain Switch (SW5)
Gain
5 (14 dB)
1 (0 dB)
0.5 (–6 dB)
Unused

Mic/HP LPBK, Audio Mode Switch (SW6)

The switch places the EZ-Board in a loopback to test the board for
SW6
signal/circuit continuity and functionality.
signal to the headphone's left and right outputs for audio loopback.
MICIN
Do not turn
SW6
Test" on page 1-24
positions 3&4 select the control interface for the audio codec.
SW6
positions 3
SW6
and position 4
See "SPI/TWI Switch (SW16)" on page 2-13
2-10
SW5
. Refer to "Audio Interface" on page 1-17
OFF
SW5 Switch Settings
, , ,
ON OFF OFF OFF
, , ,
OFF ON OFF OFF
OFF, OFF, ON, OFF (default)
, , ,
OFF OFF OFF
positions 1&2
ON
for more information.
and 4 select the SPI interface, while position 3
ON OFF
select TWI mode. By default,
ON
ADSP-BF518F EZ-Board Evaluation System Manual
) sets the gain of the
). The gain can be set to 14 dB,
J5
SW5 ON
OFF
positions 1&2 connect the
SW6
at the same time. See
SW6
for more information.
signal, which is
MIC
(see Table 2-7).
, the remaining
ON
for more
"Power-On-Self
OFF
is , , ,
OFF OFF ON OFF
.