Datasheet

Maxim Integrated │ 130
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Analog Audio Output Conguration
The device features three independent integrated analog
audio output drivers (Figure 32). The receiver/line output
driver can be configured either as a differential receiver/
earpiece output or as a stereo single-ended line output
driver. The stereo speaker output drivers are filterless Class
D differential amplifiers capable of driving both 4Ω and 8Ω
speakers. The headphone output drivers utilize Maxim’s
DirectDrive architecture with an integrated charge pump,
and provide configurable headphone and headset jack
detection. Each analog audio output driver has a program-
mable gain input mixer and output amplifier. Each mixer
accepts any combination of signals from the playback DAC,
the analog microphone amplifier, and the line input drivers.
Figure 32. Analog Audio Output Functional Diagram
HEADPHONE
DIRECT DRIVE
CHARGE PUMP
MIXHPR[5:0]
MIXHPRG[1:0]
DACL
DACR
MIC 1
MIC 2
LINE A
LINE B
HP
RIGHT
MIXER
DACL
DACR
MIC 1
MIC 2
LINE A
LINE B
HP
LEFT
MIXER
DACL
DACR
MIC 1
MIC 2
LINE A
LINE B
SPK
RIGHT
MIXER
DACL
DACR
MIC 1
MIC 2
LINE A
LINE B
SPK
LEFT
MIXER
DACL
DACR
MIC 1
MIC 2
LINE A
LINE B
RCV/
LINE
OUT
RIGHT
MIXER
DACL
DACR
MIC 1
MIC 2
LINE A
LINE B
RCV/
LINE
OUT
LEFT
MIXER
MIXHPLSEL
MIXHPRSEL
LINMOD
HP
LEFT
MUX
RCV/
LINE
OUT
MUX
HPVOLL[4:0]
HPLM
HPLEN
-67dB TO 3dB
-67dB TO 3dB
-12dB TO 0dB
-12dB TO 0dB
-12dB TO 0dB
HP
RIGHT
MUX
-12dB TO 0dB
RCVLVOL[4:0]
RCVLM
RCVLEN
HEADPHONE
LEFT PGA
HEADPHONE
RIGHT PGA
HPVOLR[4:0]
HPRM
HPREN
RCVRVOL[4:0]
RCVRM
RCVREN
SPKSLAVE
MIXHPL[5:0]
MIXHPLG[1:0]
MIXSPL[5:0]
MIXSPLG[1:0]
SPVOLR[4:0]
SPLM
SPREN
SPVOLL[4:0]
SPLM
SPLEN
-48dB TO 14dB
6dB
SPEAKER
RIGHT PGA
-12dB TO 0dB
MIXSPL[5:0]
MIXSPLG[1:0]
MIXRVCL[5:0]
MIXRVCLG[1:0]
MIXRVCL[5:0]
MIXRVCLG[1:0]
-48dB TO 14dB
6dB
SPEAKER
LEFT PGA
-62dB TO 8dB
-12dB TO 0dB
LINE OUT
RIGHT PGA
-62dB TO 8dB
RCVP/
LOUTL
RCVN/
LOUTR
SPKLP
SPKLGND
SPK_VDD
SPKRGND
HPSNS
HPL
HPR
HPVDD
HPGND
SPKLN
SPKRP
SPKRN
LINE OUT
LEFT PGA
CPVSS CPVDD C1N C1P
ANALOG
INPUT
DRIVERS
DACLEN DACRENDACHP
PERFMODE
DAC
LEFT
DAC
RIGHT
FLEXSOUND
TECHNOLOGY
DSP
MAX98090
ZDEN
VS2EN
VSEN
ZDEN
VS2EN
VSEN
ZDEN
VS2EN
VSEN