NJU8721V 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJU8721V Datasheet PDF : 13 Pages
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NJU8721
(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
I2S
16
!
0
0
1
MSB Justified
16
0
1
0
LSB Justified
16
1
0
0
I2S
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
1 / fS
!
0
0
1
2 / fS
0
1
0
4 / fS
0
1
1
8 / fS
1
0
0
16 / fS
1
0
1
32 / fS
1
1
0
64 / fS
1
1
1
128 / fS
-8-
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