Amplifier, Amplifier Gain And Microphone Pre-Amplifier Gain; Power Management Area - Epson S1V30000 Series Application

6. Evaluation Mode Operation
6.1.3.3
6.1.4

Power Management Area

The Power Management Area allows a power management mode to be selected. A single
drop-box is supplied which selects whether power-managements internally opt for
minimum power or minimum delay. Pressing the Power Config button sends a
"ISC_PMAN_CONFIG_REQ" message that configures the power management mode.
20

Amplifier, Amplifier Gain and Microphone Pre-Amplifier Gain

The Amplifier Drop-box is used to select the path over which output audio is
routed on the target. For either the "microphone" or LINE IN options, the ADC
will sample data from the MIC IN/LINE IN input on the evaluation board, and
it will be routed through the on-chip microphone pre-amplifier before going to
the ADC input amplifier.
The Gain Drop-box selects the gain for the ADC input amplifier. This can be
set in 1dB steps from 0dB to 12dB. The Mic Drop-Box selects the gain for the
Microphone pre-Amplifier (this is only used if the microphone input is
selected). This can be set in 6dB step from 12dB to 30dB. Unlike the DAC
Configuration Gain, these gain settings can only be set using the ADC Config
button.
Figure 10 Power Management area
Seiko Epson Corporation
S1V30000 Series Graphical User Interface
Application (Rev 3.01)