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. FREQUENCY (DAC TO HEADPHONE)
MAX98089
toc101
FREQUENCY (Hz)
THD+N
RATIO
(dB)
10k
1k
100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10
100k
MCLK = 12.288MHz
LRCLK = 48kHz
LOW-POWER MODE
RHP = 16I,
AVHP_ = +3dB
POUT = 0.01W
POUT = 0.02W
GAIN vs. FREQUENCY
(DAC TO HEADPHONE)
MAX98089
toc102
FREQUENCY (Hz)
NORMALIZED
GAIN
(dB)
10k
1k
100
-70
-60
-50
-40
-30
-20
-10
0
10
-80
10
100k
MODE = 1
MODE = 0
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
RHP = 32I
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX98089
toc100
FREQUENCY (Hz)
THD+N
RATIO
(dB)
10k
1k
100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10
100k
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
RHP = 16I,
AVHP_ = +3dB
POUT = 0.01W
POUT = 0.02W
Maxim Integrated
48
MAX98089