Datasheet

Maxim Integrated │ 140
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Additionally, the headphone output has a reduced power
direct from DAC playback mode (Figure 37). In this con-
figuration, the stereo DAC outputs from the playback path
are routed around the headphone mixer directly to the
headphone output amplifiers. When paired with the low
power headphone playback mode (Table 4), this com-
bination is the lowest power digital to analog playback
configuration available.
Figure 37. Reduced Power DAC Playback to Headphone Output Configuration
DACR
DACL
MIC 1
MIC 2
LINE A
LINE B
DACR
DACL
MIC 1
MIC 2
LINE A
LINE B
ANALOG
INPUT
DRIVERS
DACLEN DACRENDACHP
PERFMODE
DAC
LEFT
DAC
RIGHT
HEADPHONE
DIRECT DRIVE
CHARGE PUMP
MIXHPR[5:0]
MIXHPRG[1:0]
HP
RIGHT
MIXER
HP
LEFT
MIXER
MIXHPLSEL
MIXHPRSEL
HP
LEFT
MUX
HPVOLL[4:0]
HPLM
HPLEN
-67dB TO 3dB
-67dB TO 3dB
-12dB TO 0dB
HP
RIGHT
MUX
-12dB TO 0dB
HEADPHONE
LEFT PGA
HEADPHONE
RIGHT PGA
HPVOLR[4:0]
HPRM
HPREN
MIXHPL[5:0]
MIXHPLG[1:0]
HPSNS
HPL
HPR
HPVDD
HPGND
FLEXSOUND
TECHNOLOGY
DSP
MAX98090
C1P C1N CPVDD CPVSS
SPEAKER/RECEIVER/
LINE OUT
ZDEN
VS2EN
ZSEN