User Manual

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Typical Operating Characteristics (continued)
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= 1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V. Speaker loads (Z
SPK
) connected between
SPK_P and SPK_N. Receiver load (R
REC
) connected between RECP and RECN. Headphone loads (R
HP
) connected from HPL or HPR
to HPGND. Line out (R
LOUT
) connected from LOUTL or LOUTR to SPKLGND, C
REF
= 2.2FF, C
MICBIAS
= C
REG
= 1FF, C
C1N-C1P
=
1FF, C
HPVDD
= C
HPVSS
= 1FF. AV
MICPRE_
= +20dB, AV
MICPGA_
= 0dB, AV
DACATTN
= 0dB, AV
DACGAIN
= 0dB, AV
ADCLVL
= 0dB,
AV
ADCGAIN
= 0dB, AV
PGAIN_
= 0dB, AV
HP_
= 0dB, AV
REC
= 0dB, AV
SPK_
= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. T
A
= +25NC, unless otherwise noted.)
FFT, -60dBFS (MIC TO ADC)
MAX98089 toc17
AMPLITUDE (dBFS)
-120
-100
-80
-60
-40
-20
0
-140
MCLK = 12.288MHz
LRCLK = 96kHz
NI MODE
AV
MICPRE_
= 0dB
FREQUENCY (kHz)
151050 20
SOFTWARE TURN-ON/OFF RESPONSE
(MIC TO ADC)
MAX98089 toc19
SCL
1V/div
ADC
OUTPUT
0.5V/div
10ms/div
ADC ENABLE/DISABLE RESPONSE
(MIC TO ADC)
MAX98089 toc18
SCL
2V/div
ADC
OUTPUT
0.5V/div
10ms/div