max98089 Maxim Integrated Products, Inc., max98089 Datasheet - Page 77
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max98089
Manufacturer Part Number
max98089
Description
Low-power, Stereo Audio Codec With Flexsound Technology
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX98089.pdf
(131 pages)
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Table 7. ADC Record Level Control Register
the digital level control to 0dB whenever possible. Digital
level control is primarily used when adjusting the record
level for digital microphones.
Figure 14. Sidetone Block Diagram
REGISTER
0x33/0x34
BIT
5
4
3
2
1
0
���������������������������������������������������������������� Maxim Integrated Products 77
ADLEN
ADREN
AVLG/AVRG
ADCL
ADCR
AVL/AVR
NAME
AUTOMATIC
CONTROL
GAIN
AVLG: 0/6/
TO -15dB
AVL:0dB
12/18dB
SIDETONE
SRMIX_
MODE
MODE1
AVFLT
Left/Right ADC Gain
00 = 0dB
01 = 6dB
10 = 12dB
11 = 18dB
Left/Right ADC Level
DSTS
SAMPLE RATE
NOISE GATE
CONVERTER
FILTERS
AUDIO/
VOICE
Low-Power, Stereo Audio Codec
MIX
VALUE
Sidetone
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
DVST:
0dB TO -60dB
AVRG: 0/6/
12/18dB
AVR:0dB
TO -15dB
with FlexSound Technology
PARAMETRIC
5-BAND
+
EQ
EQ1EN
EXCURSION LIMITER
MULTI BAND ALC
DV1G:
0/6/12/18dB
DVEQ1:
0dB TO -15dB
Enable sidetone during full-duplex operation to add a
low-level copy of the recorded audio signal to the play-
back audio signal (Figure 14). Sidetone is commonly
used in telephony to allow the speaker to hear himself
speak, providing a more natural user experience. The
GAIN (dB)
PARAMETRIC
+3
+2
+1
-1
-2
-3
-4
0
5-BAND
DV2:
0dB TO -15dB
DV1:
0dB TO -15dB
EQ
EQ2EN
DESCRIPTION
DVEQ2:
0dB TO -15dB
DCB2
MODE1
DVFLT
FILTERS
FILTERS
AUDIO/
AUDIO/
VOICE
VALUE
0xC
0xD
0xA
0xB
0xE
0x8
0x9
0xF
MIXDAR
MIXDAL
MIX
MIX
DALEN
DAREN
MAX98089
DACL
DACR
GAIN (dB)
-10
-11
-12
-5
-6
-7
-8
-9
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