FAB2210 Datasheet, PDF (21/35 Pages) Fairchild Semiconductor – Audio Subsystem with Class-G Headphone and 3.3W Mono Class-D Speaker with Dynamic Range Compression

SOFTVOL
Sets volume ramp speed; sets noise gate release speed when MODESEL=1.
1=2ms/step
0=200µs/step
ADDR
B7
B6
B5
B4
B3
B2
0x1B
0
DRCMIN[6:0]
default
0
0
0
0
0
0
DRCMIN[6:0]
Sets the minimum gain that the DRC applies to a signal during attack.
DRCMIN
[6:0]
Speaker
Volume
(dB)
DRCMIN
[6:0]
1111111
1111110
1111101
1111100
1111011
1111010
1111001
1111000
1110111
1110110
1110101
1110100
1110011
1110010
1110001
1110000
1101111
1101110
1101101
1101100
1101011
1101010
1101001
1101000
1100111
1100110
1100101
1100100
1100011
1100010
1100001
1100000
0.00
-0.25
-0.50
-0.75
-1.00
-1.25
-1.50
-1.75
-2.00
-2.25
-2.50
-2.75
-3.00
-3.25
-3.50
-3.75
-4.00
-4.25
-4.50
-4.75
-5.00
-5.25
-5.50
-5.75
-6.00
-6.50
-7.00
-7.50
-8.00
-8.50
-9.00
-9.50
1011111
1011110
1011101
1011100
1011011
1011010
1011001
1011000
1010111
1010110
1010101
1010100
1010011
1010010
1010001
1010000
1001111
1001110
1001101
1001100
1001011
1001010
1001001
1001000
1000111
1000110
1000101
1000100
1000011
1000010
1000001
1000000
© 2011 Fairchild Semiconductor Corporation
FAB2210 • Rev. 1.1.1
Speaker
Volume
(dB)
-10.00
-10.50
-11.00
-11.50
-12.00
-12.50
-13.00
-13.50
-14.00
-14.50
-15.00
-15.50
-16.00
-17.00
-18.00
-19.00
-20.00
-21.00
-22.00
-23.00
-24.00
-25.00
-26.00
-27.00
-28.00
-29.00
-30.00
-31.00
-32.00
-33.00
-34.00
-35.00
21
DRCMIN
[6:0]
0111111
0111110
0111101
0111100
0111011
0111010
0111001
0111000
0110111
0110110
0110101
0110100
0110011
0110010
0110001
0110000
0101111
0101110
0101101
0101100
0101011
0101010
0101001
0101000
0100111
0100110
0100101
0100100
0100011
0100010
0100001
0100000
Speaker
Volume
(dB)
-36.00
-37.00
-38.00
-39.00
-40.00
-41.00
-42.00
-43.00
-44.00
-45.00
-46.00
-47.00
-48.00
-49.00
-50.00
-51.00
-52.00
-53.00
-54.00
-55.00
-56.00
-57.00
-58.00
-59.00
-60.00
-61.00
-62.00
-63.00
-64.00
Reserved
Reserved
Reserved
B1
B0
0
0
DRCMIN
[6:0]
Speaker
Volume
(dB)
0011111
0011110
0011101
0011100
0011011
0011010
0011001
0011000
0010111
0010110
0010101
0010100
0010011
0010010
0010001
0010000
0001111
0001110
0001101
0001100
0001011
0001010
0001001
0001000
0000111
0000110
0000101
0000100
0000011
0000010
0000001
0000000
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Mute
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