Electrical characteristics (continued) – Rainbow Electronics MAX98089 User Manual
Page 13
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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
STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1/DHF2 = 1 for LRCLK > 50kHz)
Passband Cutoff
f
PLP
Ripple limit cutoff
0.24 x f
S
Hz
-3dB cutoff
0.31 x f
S
Passband Ripple
f < f
PLP
-0.1
+0.1
dB
Stopband Cutoff
f
SLP
0.477 x f
S
Hz
Stopband Attenuation
(Note 6)
f < f
SLP
60
dB
STEREO AUDIO MODE DC BLOCKING HIGHPASS FILTER
Passband Cutoff
(-3dB from Peak)
f
DHPPB
DVFLT ≠ 000 (DAI1), DCB2 = 1 (DAI2)
0.000104
x f
S
Hz
DC Attenuation
DC
ATTEN
DVFLT ≠ 000 (DAI1), DCB2 = 1 (DAI2)
90
dB
AUTOMATIC LEVEL CONTROL
Dual Band Lowpass Corner
Frequency
ALCMB = 1
5
kHz
Dual Band Highpass Corner
Frequency
ALCMB = 1
5
kHz
Gain Range
0
12
dB
Low-Signal Threshold
ALCTH = 111 to 001
-48
-12
dBFS
Release Time
ALCRLS = 101
0.25
s
ALCRLS = 000
8
PARAMETRIC EQUALIZER
Number of Bands
5
Bands
Per Band Gain Range
-12
+12
dB
Preattenuator Gain Range
(Note 5)
-15
0
dB
Preattenuator Step Size
1
dB
DAC TO RECEIVER AMPLIFIER PATH
Dynamic Range
DR
f
S
= 48kHz, f = 1kHz (Note 4)
96
dB
Total Harmonic Distortion +
Noise
THD+N
f = 1kHz, P
OUT
= 15mW, R
REC
= 32I
-70
-63
dB
Power-Supply Rejection Ratio
PSRR
V
SPKLVDD
= 2.8V to 5.5V, T
A
= +25NC
64
75
dB
f = 217Hz, V
RIPPLE
= 200mV
P-P
80
f = 1kHz, V
RIPPLE
= 200mV
P-P
80
f = 10kHz, V
RIPPLE
= 200mV
P-P
77
Click-and-Pop Level
K
CP
Peak voltage, A-weighted, 32
samples per second, AV
REC
=
0dB
Into shutdown
-68
dBV
Out of shutdown
-72