Daughter Board
NO.:
VERSION:
1.0
PAGE:
9
9
3.2 I2S Input from Nuvoton Power Audio Master Board
3.2.1 Attach Master Board to Daughter Board
3.2.2 Setup Master Board
3.2.2.1
Apply 5V to Master Board (MBVCC/MBGND)
3.2.2.2
Select 3.3V using DBVDD Select (E1)
3.2.2.3
Select Desired Input, SPDIF or ADC, using SDIN1 (E2) and SDIN2 (E3)
3.2.2.4
Select MCLK, SDIN1, SDIN2, BCLK and FSCLK pass through using I2S selection
jumpers in the left position
3.2.2.5
Apply 7V-25V to PVCC (PVCC/PGND)
3.2.2.6
Attach Audio Inputs to RCA Input Jacks (RJ1/RJ2) or SPDIF input to RCA jack
(J1) or Optical input jack (U3)
3.2.3 Setup Daughter Board
3.2.3.1
Select Desired Slew Control (J2), section 2.2.2
3.2.3.2
Place Positive Audio Input Jumpers to take signal from the NAU8402 (J4/J7),
section 2.2.3
3.2.3.3
Select single ended input using Negative Audio Input Jumper (J5), section 2.2.4
3.2.3.4
Select Desired Power Input Source to the NAU82011s and NAU8402 (J8/J7),
section 2.2.6
3.2.4 GUI
3.2.4.1
Select NAU83P20 in the Chip Select drop down menu
3.2.4.2
Enable the NAU82011s
3.2.4.3
Enable the NAU8402
3.2.4.4
Ensure the NAU83P20 is powered up and not in Power Down or Mute states
