I am trying to get a CS42448 on an adaptor board wired to a Teensy 4.0. I found multiple other threads mentioning the connections from the 4.0 to the CS42448. I guess I'm missing something with the power connections or I2C. What is the I2C supposed to be? I see that the AD1 pin should be connected to ground. Is the CAT811T chip required for proper setting up of the I2C bus? I currently have RESET connected to 3.3v. Can AD0 just be connected to ground or 3.3v or should it be connected through a pullup/pulldown? For power connections I have the following pins connected to ground : 7,23,62,42,56. The following are connected to 3.3v : 3, 4, 6, 24, 8, 44, 53. Here is my sketch to test:

#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>

// GUItool: begin automatically generated code
AudioSynthWaveformSine   sine1;          //xy=330,209
AudioOutputTDM           tdm1;           //xy=751.0000076293945,218
AudioConnection          patchCord1(sine1, 0, tdm1, 0);
AudioConnection          patchCord2(sine1, 0, tdm1, 2);
AudioConnection          patchCord3(sine1, 0, tdm1, 4);
AudioConnection          patchCord4(sine1, 0, tdm1, 6);
AudioConnection          patchCord5(sine1, 0, tdm1, 8);
AudioConnection          patchCord6(sine1, 0, tdm1, 10);
AudioConnection          patchCord7(sine1, 0, tdm1, 12);
AudioConnection          patchCord8(sine1, 0, tdm1, 14);
AudioControlCS42448      cs42448_1;      //xy=776.0000076293945,405.0000057220459
// GUItool: end automatically generated code

void setup() {

  // put your setup code here, to run once:


void loop() {
  // put your main code here, to run repeatedly:

This gives an offset around 2V. I'm not currently using a filter on the output but coming off of a non inverting output for initial testing.