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MAX97000 Datasheet(PDF) 26 Page - Maxim Integrated Products

Part No. MAX97000
Description  Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX97000 Datasheet(HTML) 26 Page - Maxim Integrated Products

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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
26
Table 4. Volume Control Registers (continued)
REGISTER
BIT
NAME
DESCRIPTION
0x04
7
LPGAIN
Low-Power Mode Gain. Controls the headphone amplifier gain when LPMODE
≠ 0.
0 = 0dB
1 = 3dB
5
HPRM
Right Headphone Mute
0 = Unmuted
1 = Muted
4
HPRVOL
Right Headphone Volume
3
VALUE
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
LEVEL (dB)
-64
-60
-56
-52
-48
-44
-40
-37
-34
-31
-28
-25
-22
-19
-16
-14
VALUE
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
LEVEL (dB)
-12
-10
-8
-6
-4
-2
-1
0
1
2
3
4
4.5
5
5.5
6
2
1
0
0x05
7
FFM
Fixed-Frequency Oscillation. Removes spread spectrum from the class D oscillator.
0 = Spread-spectrum mode
1 = Fixed-frequency mode
6
SPKM
Speaker Mute
0 = Unmuted
1 = Mute
5
SPKVOL
Speaker Volume
VALUE
0x00–0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
LEVEL (dB)
-30
-26
-22
-18
-14
-12
-10
-8
-6
-4
-2
0
1
2
VALUE
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
0x32
0x33
LEVEL (dB)
3
4
5
6
7
8
9
10
11
12
12.5
13
13.5
14
VALUE
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
LEVEL (dB)
14.5
15
15.5
16
16.5
17
17.5
18
18.5
19
19.5
20
4
3
2
1
0


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