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Functional diagram – Rainbow Electronics MAX98088 User Manual

Page 5

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Stereo Audio Codec

with FLEXSOUND Technology

MAX98088

5

Functional Diagram

SD

A

SC

L

I

2

C

E5

F5

F4

E2

MCLK

CLOCK

CONTROL

G8

MIC2

N

G9

MIC2

P

F8

E6

JACKSN

S

JACK

DETECTION

JDETEN

MBEN

F7

M

IC

BI

AS

RE

G

INABYP

MIC2BYP

PGAM2:

+20dB TO 0dB

PGAM1:

+20dB TO 0dB

PA2EN:

0/20/30dB

EXTMIC

PA1EN:

0/20/30dB

EXTMIC

MIC1N

/

DIGMICCLK

E8

MIC1P/

DIGMICDATA

DSTS

MAS1

DAI1

SEL1

SEL2

BCLK1

BCLKS1

D1

D4

D2

E4

E1

F2

F3

G1

G3

G2

LRCLK1

SDOUT1

SDIN1

SIDETONE

DVST:

0dB TO -60dB

LTEN1

LBEN2

AUTOMATIC

GAIN

CONTROL

EQ1E

N

EQ2EN

DVEQ1:

0dB TO -15dB

DV1G:

0/6/12/18dB

DV2:

0dB TO -15dB

DCB2

5-BAND

PARAMETRI

C

EQ

5-BAND

PARAMETRI

C

EQ

DVEQ2:

0dB TO -15dB

FLEXSOUN

D

TM

TECHNOLOGY

MULTI BAND ALC

EXCURSION LIMITE

R

DV1:

0dB TO -15dB

MODE1

DVFLT

DALEN

MIXDAR

DACL

DAREN

DACR

+

+

BIT

CLOCK

FRAME

CLOCK

DATA

OUTPUT

DATA

INPUT

MAS1

HIZOFF1

MAS2

DAI2

BCLK2

LRCLK2

SDOUT2

SDIN2

BIT

CLOCK

FRAME

CLOCK

DATA

OUTPUT

DATA

INPUT

MAS2

HIZOFF2

LRCLKS1

SDOUTS1

SDINS1

DVDDS1

BCLKS2

LRCLKS2

SDOUTS2

SDINS2

DVDDS2

G4

DVDD

G5

AVDD

MUX

LBEN

1

RE

F

G6

F6

RE

G

BIAS

MAX98088

NOISE GATE

MODE1

AVFLT

SRMIX_

MODE

AVLG: 0/6/

12/18dB

AVL:0dB

TO -15dB

AVRG: 0/6/

12/18dB

AVR:0dB

TO -15dB

AUDIO/

VOICE

FILTERS

AUDIO/

FILTERS

AUDIO/

VOICE

FILTERS

MIX

MIX

MIXDAL

MIX

IRQ

ADREN

ADLEN

MIX

MIXADL

MIXADR

MIX

ADCR

ADCL

INBDIFF

PGAINB:

+20dB TO -6dB

D8

INB2

E7

INB1

E9

INA2/EXTMICN

F9

INA1/EXTMICP

+

PGAINB:

+20dB TO -6dB

INADIFF

PGAINA:

+20dB TO -6dB

+

PGAINA:

+20dB TO -6dB

MIXRECR

MIX

MIXRECL

MIX

MIXSPR

MIX

MIXSPL

MIX

MIXHPR

MIX

0dB

0dB

RECVOLL:

+8dB TO -62dB

RECLEN

RECREN

RECVOLR:

+8dB TO -62dB

RECBYP

SPKBYP

RECP/

LOUTL/

RXINP

A6

RECP/

LOUTR/

RXINP

B6

MIXHPL

MIX

SPKLP

SPKLN

SPVOLL:

+8dB TO -62dB

LINEMODE

A4, B4

SPKLVDD

A3, B3

A5, B5

SPKLGND

C4, C5

SPKRVDD

C3, D3

SPKRP

C1, C2

SPKRN

A1, B1

SPLEN

SPREN

PO

W

ER

/

D

IS

TO

RT

IO

N

L

IM

IT

ER

SPVOLR:

+8dB TO -62dB

MIXHPL_

PATH SEL

MIXHPR_

PATH SEL

SPKRGND

A2, B2

PVDD

A7

HPGN

D

A9

B7

B8

A8

HPVSS

B9

HPVD

D

C1

N

C1

P

CHARGE

PUMP

HPVOLL:

+3dB TO -67dB

HPL

HPSNS

C9

C8

HPLEN

HPVOR:

+3dB TO -67dB

HPR

D9

HPREN

+6dB

+6dB

SAMPLE RAT

E

CONVERTE

R

PORT S2

PORT S1