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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.)
GAIN vs. FREQUENCY
(LINE TO HEADPHONE)
MAX98089
toc122
FREQUENCY (Hz)
NORMALIZED
GAIN
(dB)
10k
1k
100
-4
-3
-2
-1
0
1
2
3
4
5
-5
10
100k
RHP = 32I
CIN = 1F
FREQUENCY (Hz)
1k
100k
CROSSTALK
(dB)
10k
100
10
CROSSTALK vs. FREQUENCY
(LINE TO HEADPHONE)
MAX98089
toc124
-100
-80
-60
-40
-20
0
-120
WLP RIGHT TO LEFT
WLP LEFT TO RIGHT
TQFN RIGHT TO LEFT TQFN LEFT TO RIGHT
RHP = 32I
CIN = 1F
FREQUENCY (Hz)
1k
100k
PSRR
(dB)
10k
100
10
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (LINE TO HEADPHONE)
MAX98089
toc123
20
40
60
80
100
120
0
VRIPPLE = 200mVP-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
DVDD, HPVDD
Maxim Integrated
53
MAX98089