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Low-Power, Stereo Audio Codec
with FlexSound Technology
Typical Operating Characteristics (continued)
(VAVDD = VPVDD = VDVDD = VDVDDS1 = VDVDDS2 = 1.8V, VSPKLVDD = VSPKRVDD = 3.7V. Speaker loads (ZSPK) connected between
SPK_P and SPK_N. Receiver load (RREC) connected between RECP and RECN. Headphone loads (RHP) connected from HPL or HPR
to HPGND. Line out (RLOUT) connected from LOUTL or LOUTR to SPKLGND, CREF = 2.2FF, CMICBIAS = CREG = 1FF, CC1N-C1P =
1FF, CHPVDD = CHPVSS = 1FF. AVMICPRE_ = +20dB, AVMICPGA_ = 0dB, AVDACATTN = 0dB, AVDACGAIN = 0dB, AVADCLVL = 0dB,
AVADCGAIN = 0dB, AVPGAIN_ = 0dB, AVHP_ = 0dB, AVREC = 0dB, AVSPK_ = 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. TA
= +25NC, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO SPEAKER)
MAX98089
toc58
OUTPUT POWER (W)
THD+N
RATIO
(dB)
1.5
2.0
1.0
0.5
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0
VSPK_VDD = 4.2V
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSPK_ = 4I + 33H
AVSPK_VOL = +8dB
f = 100Hz
f = 1000Hz
f = 6000Hz
2.5
MAX98089
toc59
OUTPUT POWER (W)
1.8
1.6
1.2 1.4
0.4 0.6 0.8 1.0
0.2
0
2.0
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO SPEAKER)
THD+N
RATIO
(dB)
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
VSPK_VDD = 3.7V
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSPK_ = 4I + 33H
AVSPK_VOL = +8dB
f = 100Hz
f = 1000Hz
f = 6000Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO SPEAKER)
MAX98089
toc60
OUTPUT POWER (W)
1.0
0.8
0.2
0.4
0.6
0
1.2
VSPK_VDD = 3.0V
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSP_ = 4I + 33H
AVSPK_ = +8dB
f = 6000Hz
f = 1000Hz
f = 100Hz
THD+N
RATIO
(dB)
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089
toc61
FREQUENCY (Hz)
THD+N
RATIO
(dB)
10k
1k
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
100
100k
VSPK_VDD = 4.2V
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSP_ = 8I + 68H
AVSPK_ = +8dB
POUT = 0.25W
POUT = 0.55W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089
toc62
FREQUENCY (Hz)
THD+N
RATIO
(dB)
10k
1k
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
100
100k
VSPK_VDD = 3.7V
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSPK_ = 8I + 68H
AVSPK_ = +8dB
POUT = 0.55W
POUT = 0.25W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089
toc63
FREQUENCY (Hz)
THD+N
RATIO
(dB)
10k
1k
-70
-60
-50
-40
-30
-20
-10
0
-80
100
100k
VSPK_VDD = 4.2V
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSPK_ = 4I + 33H
AVSPK_ = +8dB
POUT = 0.55W
POUT = 0.25W
Maxim Integrated
40
MAX98089