TC94A04AFG Toshiba Semiconductor, TC94A04AFG Datasheet - Page 24
TC94A04AFG
Manufacturer Part Number
TC94A04AFG
Description
1 CHIP AUDIO DIGITAL PROCESSOR
Manufacturer
Toshiba Semiconductor
Datasheet
1.TC94A04AFG.pdf
(42 pages)
- Current page: 24 of 42
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Command-4Ah (0100 1010): IFF (0000h*)
Command-4Bh (0100 1011): DE-EMPH (0000h*)
Command-4Ch (0100 1100): DAC-LR (1F1Fh*)
D15
D15
D15
D13
D12
D15
D15
D15
D4
D3
D2
D1
D0
D8
D7
D5
D4
D0
Bit
Bit
Bit
to
to
to
to
to
to
0
0
0
D14
D14
DEMP [1:0]
D14
0
0
0
Name
Name
Name
ATTR
ATTL
IFF2
[4:0]
[4:0]
⎯
⎯
⎯
⎯
D13
D13
D13
0
0
0
Fixed to 0 (zero)
Set IFFn (n = 2, 1, 0)
Fixed to 0 (zero)
Set de-emphasis
Fixed to 0 (zero)
DAC L-ch attenuator value
Fixed to 0 (zero)
DAC R-ch attenuator value
ATTL
D12
D12
D12
0
0
4
ATTL
Description
Description
Description
D11
D11
D11
0
0
3
ATTL
D10
D10
D10
0
0
2
ATTL
D9
D9
D9
0
0
1
Value
Value
Value
1Fh *
1Fh *
00h
00h
ATTL
0 *
0 *
⎯
⎯
⎯
⎯
to
to
1
1
2
3
D8
D8
D8
0
0
0
24
IFFn = 0
IFFn = 1
De-emphasis Off
fs = 32 kHz
fs = 44.1 kHz
fs = 48 kHz
Code
ATT (dB) : 0
Initial value: 1Fh
Code
ATT (dB) : 0
Initial value: 1Fh
D7
D7
D7
0
0
0
: 00h 01h
: 00h 01h
D6
D6
D6
0
0
0
− 1
− 1
D5
D5
D5
0
0
0
02h
− 2
02h
− 2
ATTR
D4
Operation
D4
Operation
D4
Operation
0
0
4
・・・ 18h 19h ・・・ 1Fh
・・・ 18h 19h ・・・ 1Fh
TC94A04AFG/AFDG
⎯
⎯
⎯
⎯
ATTR
− 24 ca. − 60
− 24 ca. − 60
D3
D3
D3
0
0
3
ATTR
IFF2
D2
D2
D2
0
2
2005-09-28
DEMP
ATTR
IFF1
ca. − 60
ca. − 60
D1
D1
D1
1
1
DEMP
ATTR
IFF0
D0
D0
D0
0
0
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