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LM49352 Datasheet(PDF) 47 Page - Texas Instruments

Part # LM49352
Description  Boomer Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece Driver, and Audio DSP
PDF  106 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM49352 Datasheet(HTML) 47 Page - Texas Instruments

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LM49352
www.ti.com
SNAS467E – MARCH 2009 – REVISED MARCH 2013
Table 26. ADC_CLK_DIV (0x21h)
Bits
Field
Description
7:0
ADC_CLK_DIV
This programs the half cycle divider that preceeds the ADC. The input of this divider should be around
12MHz. The default of this divider is 0x00.
Program this divider with the division you want, multiplied by 2, and subtract 1.
ADC_CLK_DIV
Divides by
00000000
1
00000001
1
00000010
1.5
00000011
2
—
—
11111101
127
11111110
127.5
11111111
128
Table 27. ADC_MIXER (0x23h)
Bits
Field
Description
1:0
ADC_MIX_LEVEL_L
This sets the input level to the left ADC channel.
ADC_MIX_LEVEL_L
Level
00
0dB
01
1.35dB
10
3.5dB
11
6dB
3.2
ADC_MIX_LEVEL_R
This sets the input level to the right ADC channel.
ADC_MIX_LEVEL_R
Level
00
0dB
01
1.35dB
10
3.5dB
11
6dB
4
STEREO_LINK
If set, this links ADC_MIX_LEVEL_R with ADC_MIX_LEVEL_L.
STEREO_LINK
Status
0
Off
1
On
DAC Control Registers
This register is used to control the LM49352's DAC:
Table 28. DAC Basic (0x30h)
Bits
Field
Description
1:0
MODE
This programs the over sampling ratio of the stereo DAC.
MODE
DAC Oversampling Ratio
00
125
01
128
10
64 (Default)
11
RSVD
2
MUTE_L
This digitally mutes the Left DAC output.
3
MUTE_R
This digitally mutes the Right DAC output.
Copyright © 2009–2013, Texas Instruments Incorporated
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