WM8962B datasheet(71/295 Pages) WOLFSON

71 / 295 page

WM8962

Rev 4.3

14. Set DAC_MUTE = 0 in Register R5 (5h) (see Table 63)

Note that the DAC high pass filters cannot be enabled unless one or more other sound enhancement

functions is enabled. If HPF1_ENA = 1 or HPF2_ENA = 1, then at least one other of the enable bits in

VSS_ENA).

Note that DSP2_ENA in Register R768 (300h) must remain asserted whenever any of the sound

enhancement functions listed above is being used.

ENABLE / DISABLE SEQUENCE - ENHANCEMENTS INITIALLY ENABLED

When enabling or disabling any of ADC ReTune, DAC ReTune, DAC 2nd order HPF, VSS, or HD

Bass, the following sequence is required.

Note that this sequence assumes that, under initial conditions, one or more of these enhancement

functions is enabled. A separate sequence is described for use when the sound enhancements are

initially disabled.

Note that this sequence assumes that the applicable enhancement functions have already been

configured (using default settings or otherwise). This sequence is only for enabling/disabling the

selected functions. Separate sequences are described for configuring any of the sound enhancement

functions.

Set ADCL_VOL = 00h in Register R21 (15h), and ADCR_VOL = 00h in Register R22 (16h)

(see Table 26)

Set DAC_MUTE = 1 in Register R5 (5h) (see Table 63)

Set the enable bits in Register R16389 (4005h) for any required sound enhancement

RTN_ADC_ENA

RTN_DAC_ENA

HDBASS_ENA

HPF1_ENA (see note below)

HPF2_ENA (see note below)

VSS_ENA

Set ADCL_VOL in Register R21 (15h), and ADCR_VOL in Register R22 (16h), to their

previous values

Set DAC_MUTE = 0 in Register R5 (5h) (see Table 63)

Note that the DAC high pass filters cannot be enabled unless one or more other sound enhancement

functions is enabled. If HPF1_ENA = 1 or HPF2_ENA = 1, then at least one other of the enable bits in

VSS_ENA).

Note that DSP2_ENA in Register R768 (300h) must remain asserted whenever any of the sound

enhancement functions listed above is being used.

To disable all sound enhancement functions, refer to the control sequence described in the next

section (“Disable All Sound Enhancements”).

WM8962B Datasheet(PDF) 71 Page - Wolfson Microelectronics plc