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.)
FREQUENCY (Hz)
10k1k10010 100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089 toc64
THD+N RATIO (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 4I + 33µH
AV
SPK_
= +8dB
P
OUT
= 0.25W
P
OUT
= 0.55W
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc65a
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.04.54.03.53.0
500
1000
1500
2000
2500
0
2.5 5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 8I + 68µH
AV
SPK_
= +8dB
TQFN PACKAGE
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc66
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.04.53.0 3.5 4.0
500
1000
1500
2000
2500
3000
3500
4000
0
2.5 5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 4I + 33µH
AV
SPK_
= +8dB
TQFN PACKAGE
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc65b
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.04.54.03.53.0
500
1000
1500
2000
2500
0
2.5 5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 8I + 68µH
AV
SPK_
= +8dB
WLP PACKAGE
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc67
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.04.53.0 3.5 4.0
500
1000
1500
2000
2500
3000
3500
4000
0
2.5 5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 4I + 33µH
AV
SPK_
= +8dB
WLP PACKAGE
THD+N = 10%
THD+N = 1%