MAX9888EWY+T Maxim Integrated Products, MAX9888EWY+T Datasheet - Page 86
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MAX9888EWY+T
Manufacturer Part Number
MAX9888EWY+T
Description
IC CODEC AUDIO FLEXSOUND 63WLP
Manufacturer
Maxim Integrated Products
Series
DirectDrive®, FLEXSOUND™r
Type
Class Dr
Datasheet
1.MAX9888EWYT.pdf
(115 pages)
Specifications of MAX9888EWY+T
Output Type
3-Channel with Stereo Headphones
Max Output Power X Channels @ Load
1.37W x 2 @ 8 Ohm; 40mW x 2 @ 16 Ohm
Voltage - Supply
2.8 V ~ 5.5 V
Features
Depop, Differential Inputs, I²S, Microphone, Mute, Shutdown
Mounting Type
Surface Mount
Package / Case
63-WLP
For Use With
MAX9888EVKIT+ - KIT EVALUATION FOR MAX9888
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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The IC’s preoutput mixer stage provides mixing and level adjustment for line input signals routed to the output ampli-
fiers. Figure 24 shows a block diagram of the preoutput signal path. 9dB is added between the line input amplifiers
and the output amplifiers to boost the 1V
The IC’s output amplifiers each accept input from one of the three preoutput mixers. Configure each pre-
output mixer to mix any combination of the four line input signals.
Stereo Audio CODEC
with FLEXSOUND Technology
Figure 24. Preoutput Signal Path Block Diagram
Table 19. Preoutput Mixer Registers
86
REGISTER
0x24/0x25/
0x26
BIT
3
2
1
0
+
+
PGAINA:
+20dB TO -6dB
PGAINA:
+20dB TO -6dB
PGAINB:
+20dB TO -6dB
PGAINB:
+20dB TO -6dB
MIXOUT1/
MIXOUT2/
MIXOUT3
NAME
INADIFF
INBDIFF
Preoutput Mixer 1
1xxx = INA1
x1xx = INA2 (INADIFF = 0) or INA2 - INA1 (INADIFF = 1)
xx1x = INB1
xxx1 = INB2 (INBDIFF = 0) or INB2 - INB1 (INBDIFF = 1)
MIXOUT1
MIXOUT2
MIXOUT3
P-P
MIX
MIX
MIX
maximum line input signal level to the 1V
PGAOUT1:
0dB TO -23dB
PGAOUT2:
0dB TO -23dB
PGAOUT3:
0dB TO -23dB
PREOUT1
PREOUT2
PREOUT3
+9dB
+9dB
+9dB
MIXREC
MIXSPL
MIXSPR
MIX
MIX
MIX
DESCRIPTION
RECVOL:
+8dB TO -62dB
SPVOLL:
+8dB TO -62dB
MIXHPR
SPVOLR:
+8dB TO -62dB
MIXHPL
MIX
MIX
BATTERY ADC
RECEN
SPLEN
SPREN
HPLEN
HPREN
+6dB
+6dB
0dB
RMS
HPVOLL:
+3dB TO -67dB
HPVOLR:
+3dB TO -67dB
DISTORTION LIMITER
RECBYP
POWER/
Preoutput Signal Path
SPKBYP
maximum DAC signal level.
SPKRPGND
SPKLGND
SPKRVDD
SPKLVDD
HPSNS
SPKLN
SPKRP
SPKRN
SPKLP
RECP/
RXINP
RECN/
RXINN
HPR
HPL
Preoutput Mixer
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