Rainbow Electronics MAX98089 - Manual (Page 31)

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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)
15 10 5 0 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