FAB2210 Datasheet, PDF (22/35 Pages) Fairchild Semiconductor – Audio Subsystem with Class-G Headphone and 3.3W Mono Class-D Speaker with Dynamic Range Compression

ADDR
0x1D
default
B7
B6
B5
MCSSMT[2:0]
1
0
0
B4
B3
B2
B1
B0
SSMT[2:0]
ERC
0
0
0
0
1
0
MCSSMT[2:0]
Sets the master clock spread spectrum modulation percentage. A setting of 000 results in a ±9.4% modulation.
Modulating the master clock does not modulate the class-D output frequency because the triangle wave generator is
PLL controlled.
MCSSMT[2:0]
111
110
101
100
011
010
001
000
± Modulation %
10.3
9.0
8.5
6.5
37.7
21.6
15.6
9.4
SSMT[2:0]
Sets the Class-D spread-spectrum modulation percentage. A setting of 000 results in ±9.4% modulation.
SSMT[2:0]
111
110
101
100
011
010
001
000
± Modulation %
10.3
9.0
8.5
6.5
37.7
21.6
15.6
9.4
ERC
1=Class-D edge rate control on.
0=Class-D edge rate control off.
ADDR
B7
B6
B5
B4
B3
B2
B1
B0
0x80
SRST
0
0
0
0
1
0
0
Default
1
0
0
0
0
1
0
0
© 2011 Fairchild Semiconductor Corporation
FAB2210 • Rev. 1.1.1
22
www.fairchildsemi.com