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.)
OUTPUT POWER PER CHANNEL (mW)
CURRENT CONSUMPTION (mA)
1010.1 100
CURRENT CONSUMPTION vs. OUTPUT
POWER (DAC TO HEADPHONE)
MAX98089 toc104
20
40
60
80
100
120
0
MCLK = 12.288MHz
LRCLK = 48kHz
LOW-POWER MODE
AV
HP_
= +3dB
R
PH
= 16I
R
PH
= 32I
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO HEADPHONE)
MAX98089 toc105
FREQUENCY (Hz)
PSRR (dB)
10k1k100
20
40
60
80
100
120
0
10 100k
V
RIPPLE
= 200mV
P-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
DVDD, HPVDD
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO HEADPHONE)
MAX98089 toc106
FREQUENCY (Hz)
PSRR (dB)
10k1k100
20
40
60
80
100
120
0
10 100k
V
RIPPLE
= 200mV
P-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
PVDD, DVDD
OUTPUT POWER PER CHANNEL (mW)
POWER CONSUMPTION (mW)
1010.1 100
POWER CONSUMPTION vs. OUTPUT
POWER (DAC TO HEADPHONE)
MAX98089 toc103
20
40
60
80
100
120
0
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
AV
HP_
= +3dB
R
PH
= 16I
R
PH
= 32I
FREQUENCY (kHz)
1k
100k
CROSSTALK (dB)
10k10010
CROSSTALK vs. FREQUENCY
(DAC TO HEADPHONE)
MAX98089 toc107
-100
-80
-60
-40
-20
0
-120
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
R
HP
= 32I
WLP RIGHT TO LEFT
WLP LEFT TO RIGHT
TQFN RIGHT TO LEFT
TQFN LEFT TO RIGHT