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Stereo Audio CODEC
with FlexSound Technology
MAX9888
43
Typical Operating Characteristics (continued)
(VAVDD = VHPVDD = 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 GND. RHP = J, RREC = J, ZSPK = J, CREF = 2.2FF, CMICBIAS = CPREG = CREG = 1FF, CC1N-C1P = 1FF, CHPVSS
= 1FF. AVMICPRE_ = +20dB, AVMICPGA_ = 0dB, AVDACATTN = 0dB, AVDACGAIN = 0dB, AVADCLVL = 0dB, AVADCGAIN = 0dB,
AVPGAIN_ = 0dB, AVPGAOUT_ = 0dB, AVHP_ = 0dB, AVREC = 0dB, AVSPK_ = 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS =
1. TA = +25NC, unless otherwise noted.)
DAC to Headphone
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO HEADPHONE)
MAX9888
toc78
OUTPUT POWER (W)
THD+N
RATIO
(dB)
0.04
0.03
0.02
0.01
0
0.05
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
RHP = 32I
AVHP_ = +3dB
f = 3000Hz
f = 100Hz
f = 1000Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO HEADPHONE)
MAX9888
toc79
OUTPUT POWER (W)
THD+N
RATIO
(dB)
0.04
0.03
0.02
0.01
0
0.05
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
MCLK = 13MHz
LRCLK = 44.1kHz
PLL MODE
RHP = 32I
AVHP_ = +3dB
f = 6000Hz
f = 100Hz
f = 1000Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO HEADPHONE)
MAX9888
toc80
OUTPUT POWER (W)
THD+N
RATIO
(dB)
0.04
0.03
0.02
0.01
0
0.05
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
RHP = 32I
AVHP_ = +3dB
f = 6000Hz
f = 100Hz
f = 1000Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO HEADPHONE)
MAX9888
toc81
OUTPUT POWER (W)
THD+N
RATIO
(dB)
0.04
0.03
0.02
0.01
0
0.05
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
MCLK = 12.288MHz
LRCLK = 96kHz
NI MODE
RHP = 32I
AVHP_ = +3dB
f = 6000Hz
f = 100Hz
f = 1000Hz
MAX9888
toc82
OUTPUT POWER (W)
0.07
0.06
0.04 0.05
0.02 0.03
0.01
0
0.08
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO HEADPHONE)
THD+N
RATIO
(dB)
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
RHP = 16I
AVHP_ = +3dB
f = 6000Hz
f = 100Hz
f = 1000Hz
FREQUENCY (Hz)
1000
100
10
10,000
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (LINE TO SPEAKER)
MAX9888
toc83
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
RHP = 32I
AVHP_ = +3dB
THD+N
RATIO
(dB)
-80
-70
-60
-50
-40
-30
-20
-10
-90
0
POUT = 0.01W
POUT = 0.02W