TC94A04AFG Toshiba Semiconductor, TC94A04AFG Datasheet - Page 25

• Manufacturer Part Number: TC94A04AFG
• Description: 1 CHIP AUDIO DIGITAL PROCESSOR
• Manufacturer: Toshiba Semiconductor

Command-4Dh (0100 1101): DAC-CS (1F1Fh*)
Command-4Eh (0100 1110): DF-ATT (007Fh*)
D15
D13
D12
D15
D15
D15
D8
D7
D5
D4
D0
D7
D6
D0
Bit
Bit
to
to
to
to
to
to
0
0
D14
D14
0
0
Name
Name
ATTC
ATTS
[4:0]
[4:0]
[6:0]
ATL
⎯
⎯
⎯
D13
D13
0
0
Fixed to 0 (zero)
DAC C-ch attenuator value
Fixed to 0 (zero)
DAC-Sch attenuator value
Fixed to 0 (zero)
DF attenuator value
ATTC
D12
D12
4
0
ATTC
Description
Description
D11
D11
3
0
ATTC
D10
D10
2
0
ATTC
D9
D9
1
0
Value
Value
1Fh *
1Fh *
7Fh *
ATTC
00h
00h
00h
⎯
⎯
⎯
to
to
to
D8
D8
0
0
25
Code
ATT (dB) : 0
Initial value: 1Fh
Code
ATT (dB) : 0
Initial value: 1Fh
Initial value: 7Fh (level = −∞ )
LEVEL = 20 × log (ATL/128)
D7
D7
0
0
: 00h 01h
: 00h 01h
ATL6
D6
D6
0
Code
0Dh
7Dh
1Ah
3Fh
7Eh
7Fh
00h
01h
02h
25h
to
to
to
− 1
− 1
ATL5
D5
D5
0
02h
− 2
02h
− 2
ATTS
ATL4
D4
Operation
D4
Operation
4
･･･ 18h 19h ･･･ 1Fh
･･･ 18h 19h ･･･ 1Fh
TC94A04AFG/AFDG
ATL
7Fh
7Eh
7Dh
5Ah
72h
65h
40h
02h
01h
00h
⎯
⎯
⎯
to
to
to
ATTS
− 24 ca. − 60
− 24 ca. − 60
ATL3
D3
D3
3
ATTS
ATL2
− 36.12dB
− 42.14dB
D2
D2
− 0.14dB
− 0.21dB
− 1.01dB
− 2.06dB
− 3.06dB
− 6.02dB
2
0.00dB
Level
−∞
to
to
to
2005-09-28
ATTS
ATL1
ca. − 60
ca. − 60
D1
D1
1
ATTS
ATL0
D0
D0
0