Electrical characteristics (continued) – Rainbow Electronics MAX98089 User Manual
Page 12
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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
ELECTRICAL 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 loads (R
LOUT
) connected from LOUTL or LOUTR to SPKLGND. R
LOAD
= R
HP
= J, R
REC
= J, Z
SPK
= J, 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 = 0. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DAC DIGITAL FILTERS
VOICE MODE IIR LOWPASS FILTER (MODE1 = 0)
Passband Cutoff
f
PLP
Ripple limit cutoff
0.448 x f
S
Hz
-3dB cutoff
0.451 x f
S
Passband Ripple
f < f
PLP
-0.1
+0.1
dB
Stopband Cutoff
f
SLP
0.476 x f
S
Hz
Stopband Attenuation
(Note 6)
f > f
SLP
75
dB
VOICE MODE IIR HIGHPASS FILTER (MODE1 = 0)
Passband Cutoff
(-3dB from Peak)
f
DHPPB
DVFLT = 0x1 (Elliptical tuned for f
S
= 16kHz +
217Hz notch)
0.0161
x f
S
Hz
DVFLT = 0x2 (500Hz Butterworth tuned for f
S
=
16kHz)
0.0312
x f
S
DVFLT = 0x3 (Elliptical tuned for f
S
= 8kHz + 217Hz
notch)
0.0321
x f
S
DVFLT = 0x4 (500Hz Butterworth tuned for f
S
=
8kHz)
0.0625
x f
S
DVFLT = 0x5 (fs/240 Butterworth)
0.0042
x f
S
Stopband Cutoff
(-30dB from Peak)
f
DHPSB
DVFLT = 0x1 (Elliptical tuned for f
S
= 16kHz +
217Hz notch)
0.0139 x f
S
Hz
DVFLT = 0x2 (500Hz Butterworth tuned for f
S
=
16kHz)
0.0156 x f
S
DVFLT = 0x3 (Elliptical tuned for f
S
= 8kHz + 217Hz
notch)
0.0279 x f
S
DVFLT = 0x4 (500Hz Butterworth tuned for f
S
=
8kHz)
0.0312 x f
S
DVFLT = 0x5 (f
S
/240 Butterworth)
0.0021 x f
S
DC Attenuation
DC
ATTEN
DVFLT ≠ 000
85
dB
STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1/DHF2 = 0, LRCLK < 50kHz)
Passband Cutoff
f
PLP
Ripple limit cutoff
0.43 x f
S
Hz
-3dB cutoff
0.47 x f
S
-6.02dB cutoff
0.5 x f
S
Passband Ripple
f < f
PLP
-0.1
+0.1
dB
Stopband Cutoff
f
SLP
0.58 x f
S
Hz
Stopband Attenuation
(Note 6)
f > f
SLP
60
dB