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Manual

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Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
15
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= +1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V. Speaker loads (Z
SPK
) connected
between SPK_P and SPK_N. Receiver load (R
REC
) connected between RECP and RECN. Headphone loads (R
HP
) connected from
HPL or HPR to HPGND. Line out loads (R
LOAD
) connected from LOUTL and LOUTR to ground. R
LOAD
= R
HP
= J, R
REC
= J, Z
SPK
= J, C
REF
= 2.2FF, C
MICBIAS
= C
REG
= 1FF, C
C1N-C1P
= 1FF, C
HPVDD
= C
HPVSS
= 1FF. AV
MICPRE_
= +20dB, AV
MICPGA_
= 0dB,
AV
DACATTN
= 0dB, AV
DACGAIN
= 0dB, AV
ADCLVL
= 0dB, AV
ADCGAIN
= 0dB, AV
PGAIN_
= 0dB, AV
HP_
= 0dB, AV
REC
= 0dB, AV
SPK_
= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. T
A
= +25NC, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DAC TO SPEAKER AMPLIFIER PATH
Total Harmonic Distortion
+ Noise
THD+N
f = 1kHz, P
OUT
= 200mW, Z
SPK
= 8I + 68FH
-68 dB
Crosstalk
SPKL to SPKR and SPKR to SPKL,
P
OUT
= 640mW, f = 1kHz
-88 dB
Output Noise 53
FV
RMS
Click-and-Pop Level K
CP
Peak voltage, A-weighted,
32 samples per second,
AV
SPK_
= 0dB
Into shutdown 65
dBV
Out of shutdown 66
MIC INPUT TO SPEAKER AMPLIFIER PATH
Dynamic Range (Note 4) DR Referenced to full-scale output level, AV
SPK_
= 0dB 82 dB
Total Harmonic Distortion
+ Noise
THD+N
f = 1kHz, P
OUT
= 200mW, R
L
= 8I + 68FH
71 dB
Click-and-Pop Level K
CP
Peak voltage, A-weighted, 32
samples per second, AV
SPK_
= 0dB
Into shutdown 55
dBV
Out of shutdown 52
SPEAKER AMPLIFIER
Output Power P
OUT
f = 1kHz, THD
= 1%,
Z
SPK
= 8I +
68FH
V
SPKLVDD
= V
SPKRVDD
= 5.0V 1323
mW
V
SPKLVDD
= V
SPKRVDD
= 4.2V 914
V
SPKLVDD
= V
SPKRVDD
= 3.7V 700
V
SPKLVDD
= V
SPKRVDD
= 3.2V 514
Full-Scale Output (Note 7) 2 V
RMS
Volume Control AV
SPK_
(Note 5)
SPVOLL/SPVOLR = 0x00 -62
dB
SPVOLL/SPVOLR = 0x1F +8
Volume Control Step Size
+8dB to +6dB 0.5
dB
+6dB to +0dB 1
0dB to -14dB 2
-14dB to -38dB 3
-38dB to -64dB 4
Mute Attenuation f = 1kHz 86 dB
Output Offset Voltage V
OS
AV
SPK_
= -61dB, T
A
= +25NC Q0.5 Q3
mV