DA7212 Beep generator without providing MCLK

Question

Hello, 
 i want to use the DA7212 in Beep generator mode without providing MCLK (for HW limitation reasons on the PCB). 
 I read from previous publications that that is possible, but i followed all the configuration paramaters and it did not work. 
 
 I'm not using headphones, i'm using a speaker as output. 
 Can you please provide a working configuration ? 
 
 Here is what i did : 
 
 err = device_reg_write ( i2c_dev , 0x92 , 0x00 ); 
 
 LOG_INF ( "Set Ramp rate to default" ); 
 
 k_sleep ( K_MSEC ( 100 )); 
 err = device_reg_write ( i2c_dev , 0x90 , 0x80 ); 
 
 LOG_INF ( "Enable Digital LDO" ); 
 
 err = device_reg_write ( i2c_dev , 0x29 , 0xCC ); 
 LOG_INF ( "Enable AIF 32bit I2S mode" ); 
 
 err = device_reg_write ( i2c_dev , 0x22 , 0x0b ); 
 LOG_INF ( "Set incoming sample rate to 48kHz" ); 
 
 err = device_reg_write ( i2c_dev , 0x94 , 0x02 ); 
 
 LOG_INF ( "Set incoming sample rate to 48kHz" ); 
 
 err = device_reg_write ( i2c_dev , 0x27 , 0x04 ); 
 
 LOG_INF ( "PLL_CTRL PLL disabled" ); 
 
 err = device_reg_write ( i2c_dev , 0x2A , 0x32 ); 
 
 LOG_INF ( "Route DAI to Outputs" ); 
 
 err = device_reg_write ( i2c_dev , 0x4B , 0x08 ); 
 
 LOG_INF ( "MIXOUT_L input from DACL" ); 
 
 err = device_reg_write ( i2c_dev , 0x4C , 0x08 ); 
 
 LOG_INF ( "MIXOUT_R input from DACR" ); 
 
 err = device_reg_write ( i2c_dev , 0x47 , 0xCD ); 
 
 LOG_INF ( "Enable charge pump, CP_MOD mode, CPVDD1 and Boost CP" ); 
 
 err = device_reg_write ( i2c_dev , 0x95 , 0x36 ); 
 
 LOG_INF ( "Set CP threshold to 0x36" ); 
 
 err = device_reg_write ( i2c_dev , 0x96 , 0xA5 ); 
 
 LOG_INF ( "Set CP Tau DELAY to 64ms" ); 
 
 err = device_reg_write ( i2c_dev , 0x48 , 0x2D ); 
 
 LOG_INF ( "Set volume to -12dB" ); 
 
 err = device_reg_write ( i2c_dev , 0x49 , 0x2D ); 
 
 LOG_INF ( "Set volume to -12dB" ); 
 
 err = device_reg_write ( i2c_dev , 0x51 , 0xFF ); 
 
 LOG_INF ( "Enable DAC, Mix and HP amplifiers" ); 
 
 err = device_reg_write ( i2c_dev , 0xBB , 0x3F ); 
 LOG_INF ( "Continuous" ); 
 
 err = device_reg_write ( i2c_dev , 0xB5 , 0x01 ); 
 
 LOG_INF ( "SWG1 En Set tone gen gain to 0dB" ); 
 
 err = device_reg_write ( i2c_dev , 0xB4 , 0x80 ); 
 
 LOG_INF ( "Tone Gen En" );