Registers B0_P17_R104 (0x68) to B0_P17_111 (0x6F) in Table 2-1 configure amplitude levels and select output channels for SG1.

Two ways to configure amplitude are executing I2C scripts or using PPC3 mixing volume coefficients.

Table 2-1 demonstrates how these two methods increase or decrease amplitude in steps of 0.56dB gain. Here, I2C scripts require 16-bit registers per channel. Each amplitude and channel selection configuration requires executing a 32-bit I2C command.

This example script template places each analog output channel of OUT1 and OUT2 in a 32-bit I2C commands. This template applies to all SG2 registers as well.

The full-scale value in Vrms and max gain in dB correlates to 0x40000. This makes up 16-bit of the 32-bit I2C command.

#Example template to configure SG1 to OUT1P&M and OUT2P&M. Same format #applies to SG2 registers.  
#w a0 68 [OUT1M] [OUT1M] [OUT1P] [OUT1P]
#w a0 6C [OUT2M] [OUT2M] [OUT2P] [OUT2P] 
#w xx XX [15:8] [7:0] [15:8] [7:0] 

# This is a 32-bit I2C command. Here, OUT1P has full gain while OUT1M has #no gain.
w a0 68 00 00 40 00 

SG1 example script has an example on amplitude and channel selection using I2C commands. PPC3 provides a range of coefficients between 1 to 0. To predict gain in dB through these coefficients, use...

The full-scale value in Vrms and max gain in dB correlates to a coefficient of 1.

Figure 2-2 demonstrates how signal generators use mixing volume coefficients to configure amplitude in PPC3.

Figure 2-2 Amplitude and Output Channel Configuration GUI

Table 2-4 shows how to navigate to the tone generator GUI.