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| TAS2552_15 Datasheet, PDF (18/60 Pages) Texas Instruments – TAS2552 4.0-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense | |||
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TAS2552
SLAS898B â JANUARY 2014 â REVISED APRIL 2015
www.ti.com
GAIN BYTE:
GAIN[4:0]
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
Table 1. TAS2552 Gain Table
NOMINAL GAIN
â7 dB
â6 dB
â5 dB
â4 dB
â3 dB
â2 dB
â1 dB
0 dB
1 dB
2 dB
3 dB
4 dB
5 dB
6 dB
7 dB
8 dB
GAIN BYTE:
GAIN[4:0]
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
NOMINAL GAIN
9 dB
10 dB
11 dB
12 dB
13 dB
14 dB
15 dB
16 dB
17 dB
18 dB
19 dB
20 dB
21 dB
22 dB
23 dB
24 dB
7.3.9 Class-D Edge Rate Control
The edge rate of the Class-D output is controllable via an I2C register. This allows users the ability to adjust the
switching edge rate of the Class-D amplifier, trading off some efficiency for lower EMI. Table 2 lists the typical
edge rates.
Table 2. Class-D Edge Rate Control
ERC BYTE:
EDGE[2:0]
000
001
010
011
100
101
110
111
TR AND TF
(TYPICAL)
50 ns
40 ns
30 ns
25 ns
14 ns
13 ns
12 ns
11 ns
18
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