PaulS
Well-known member
Just checking here if these measured numbers are as expected:
Using FrankB's recently updated code for Teensy LC:
So only the PT8211 is doing 4x oversampling with a Teensy 3.2/4.0?
And is it correct that PT8211 and T4.0 does not have MCLK?
Using Arduino 1.8.13, Teensyduino 1.53, modified output_i2s & output_pt8211 to support TLC.
Thanks,
Paul
Code:
Teensy 3.2, PCM5102A, LRCK = 44.1 kHz, BCK = 2.8224 MHz [64.LRCK], MCLK = 11.29 MHz, "AudioOutputI2S i2s1;"
Teensy 3.2, UDA1334, LRCK = 44.1 kHz, BCK = 2.8224 MHz [64.LRCK], MCLK = 11.29 MHz, "AudioOutputI2S i2s1;"
Teensy 3.2, PT8211, LRCK = 176.4 kHz, BCK = 5.6469 MHz [32.LRCK], MCLK = 11.29 MHz, "AudioOutputPT8211 pt8211_1;"
Teensy 4.0, PCM5102A, LRCK = 44.1 kHz, BCK = 2.8224 MHz [64.LRCK], MCLK = 11.29 MHz, "AudioOutputI2S i2s1;"
Teensy 4.0, UDA1334, LRCK = 44.1 kHz, BCK = 2.8224 MHz [64.LRCK], MCLK = 11.29 MHz, "AudioOutputI2S i2s1;"
Teensy 4.0, PT8211, LRCK = 176.4 kHz, BCK = 5.6469 MHz [32.LRCK], no MCLK, "AudioOutputPT8211 pt8211_1;"
Using FrankB's recently updated code for Teensy LC:
Code:
Teensy LC, PCM5102A, LRCK = 44.1 kHz, BCK = 1.4117 MHz [32.LRCK], no MCLK, "AudioOutputI2S i2s1;"
Teensy LC, UDA1334, LRCK = 44.1 kHz, BCK = 1.4117 MHz [32.LRCK], no MCLK, "AudioOutputI2S i2s1;"
Teensy LC, PT8211, LRCK = 44.1 kHz, BCK = 1.4117 MHz [32.LRCK], no MCLK, "AudioOutputPT8211 pt8211_1;"
So only the PT8211 is doing 4x oversampling with a Teensy 3.2/4.0?
And is it correct that PT8211 and T4.0 does not have MCLK?
Using Arduino 1.8.13, Teensyduino 1.53, modified output_i2s & output_pt8211 to support TLC.
Thanks,
Paul