NJU8721

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(8-3) DEMP0, DEMP1

DEMP0 and DEMP1 control De-Emphasis on/off and sampling frequency.

DEMP1

DEMP0

De-Emphasis

Initial Value

0

0

OFF

!

0

1

32kHz

1

0

44.1kHz

1

1

48kHz

(8-4) MUTE

Mute operation is controlled by the “MUTE” as same as the MUTE terminal control.

MUTE

Mute Operation

Initial Value

0

OFF

!

1

ON

(8-5) F0, F1, F2

F0, F1, and F2 select Digital Audio Interface Format. As same as the F0/DATA, F1/REQ, and F2/SCK

terminal control.

F0

F1

F2

Interface Format

Bit Length

Initial Value

0

0

0

I

16

!

0

0

1

MSB Justified

16

0

1

0

LSB Justified

16

1

0

0

I

18

1

0

1

MSB Justified

18

1

1

0

LSB Justified

18

(8-6) RST

When the RST is “1”, the control register and inner data (Digital filter, PWM modulator) are initialized.

RST

Reset Operation

Initial Value

0

OFF

!

1

ON

(8-7) TRST

When the TRST is “1”, only inner data (Digital filter, PWM modulator) is initialized.

TRST

Data Bus Initialize

Initial Value

0

OFF

!

1

ON

(8-8) MUTT2 to MUTT0

MUTT2 to MUTT0 set the attenuator transition time. This transition time is one attenuation step change

time.

MUTT2

MUTT1

MUTT0

Operation Time

Initial Value

0

0

0

!

0

0

1

0

1

0

0

1

1

1

0

0

1

0

1

1

1

0

1

1

1