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.)
FREQUENCY (Hz)
1k
100k
CROSSTALK
(dB)
10k
100
10
CROSSTALK
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089
toc73
-100
-80
-60
-40
-20
RIGHT TO LEFT
LEFT TO RIGHT
0
-120
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
ZSPK_ = 8I + 68H
SOFTWARE TURN-ON/OFF RESPONSE
(DAC TO SPEAKER, VSEN = 0)
MAX98089 toc74
SCL
1V/div
SPEAKER
OUTPUT
1V/div
10ms/div
SOFTWARE TURN-ON/OFF RESPONSE
(DAC TO SPEAKER, VSEN = 1)
MAX98089 toc75
SCL
1V/div
SPEAKER
OUTPUT
1V/div
10ms/div
FFT, -60dBFS (DAC TO SPEAKER)
MAX98089
toc76
FREQUENCY (kHz)
AMPLITUDE
(dBV)
15
10
5
-120
-100
-80
-60
-40
-20
0
20
-140
020
MCLK = 12.2888MHz
LRCLK = 48kHz
NI MODE
ZSPK_ = 8I + 68H
FFT, -60dBFS (DAC TO SPEAKER)
MAX98089
toc77
FREQUENCY (kHz)
AMPLITUDE
(dBV)
15
10
5
-120
-100
-80
-60
-40
-20
0
-140
020
MCLK = 13MHz
LRCLK = 44.1kHz
PLL MODE
ZSPK_ = 8I + 68H
WIDEBAND FFT (DAC TO SPEAKER)
MAX98089
toc78
FREQUENCY (MHz)
AMPLITUDE
(dBm)
10
-80
-60
-40
-20
0
-100
1
100
MCLK = 13MHz
LRCLK = 44.1kHz
PLL MODE
ZSPK_ = 8I + 68H
Maxim Integrated
43
MAX98089