User Manual
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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
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
LOUT
) connected from LOUTL or LOUTR to SPKLGND. 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 = 0. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LINE INPUT TO RECEIVER AMPLIFIER PATH
Dynamic Range (Note 4) DR Referenced to full-scale output level 94 dB
Total Harmonic Distortion +
Noise
THD+N -64 dB
Click-and-Pop Level K
CP
Peak voltage, A-weighted, 32
samples per second, AV
REC
=
0dB
Into shutdown -51
dBV
Out of shutdown -49
RECEIVER AMPLIFIER
Output Power P
OUT
R
REC
= 32I, f = 1kHz, THD = 1%
92 mW
Full-Scale Output (Note 7) 1 V
RMS
Volume Control (Note 5) AV
REC
RECVOL = 0x00 -62
dB
RECVOL = 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 -62dB 4
Mute Attenuation f = 1kHz 88 dB
Capacitive Drive Capability No sustained oscillations
R
REC
= 32I
500
pF
R
REC
= J
100
DAC TO LINE OUT AMPLIFIER PATH
Dynamic Range (Note 4) DR f
S
= 48kHz, f = 1kHz 83 96 dB
Total Harmonic Distortion +
Noise
THD+N
f = 1kHz, R
L
= 1kI
-78 -72 dB
LINE INPUT TO LINE OUT AMPLIFIER PATH
Dynamic Range (Note 4) DR Referenced to full-scale output level 92 dB
Total Harmonic Distortion +
Noise
THD+N
f = 1kHz, R
L
= 10kI
76 dB
Full-Scale Output (Note 7) 2 V
P-P
Mute Attenuation f = 1kHz 85 dB
Output Offset Voltage V
OS
AV
REC_
= -62dB
Q
0.5 Q4
mV
Capacitive Drive Capability
No sustained oscillations, R
L
= 1kI
500 pF