MAX98088EWY+T Maxim Integrated Products, MAX98088EWY+T Datasheet - Page 107
MAX98088EWY+T
Manufacturer Part Number
MAX98088EWY+T
Description
Audio CODECs DUAL I2S CODEC AUDIO STEREO
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX98088EWYT.pdf
(123 pages)
Specifications of MAX98088EWY+T
Number Of Adc Inputs
2
Number Of Dac Outputs
2
Resolution
24 bit
Operating Supply Voltage
1.8 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
WLP-63
Number Of Channels
2
Supply Current
4.5 mA
Thd Plus Noise
- 77 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 29. Output Bypass Switches Register
Figure 31. Output Bypass Switch Block Diagrams
The IC's includes two output bypass switches that solve
common applications problems. When a single trans-
ducer is used for the loudspeaker and receiver, the need
exists for two amplifiers to power the same transducer.
Bypass switches connect the IC's receiver amplifier
output to the speaker amplifier’s output, allowing either
amplifier to power the same transducer. In systems where
REGISTER
*OPTIONAL 10I RESISTORS IMPROVE DISTORTION
THROUGH THE ANALOG SWITCH.
0x4A
0dB
RECLEN
0dB
RECREN
SPLEN
+6dB
POWER/DISTORTION
SPEAKER AMPLIFIER BYPASS USING AN
LIMITER
SPKBYP
RECBYP
EXTERNAL RECEIVER AMPLIFIER
BIT
7
4
1
0
RECN/RXINN
RECP/RXINP
SPKLVDD
SPKLGND
SPKLP
SPKLN
MIC2BYP
Output Bypass Switches
RECBYP
SPKBYP
INABYP
NAME
10I*
10I*
EXTERNAL
RECEIVER
AMP
See the Microphone Inputs section.
RXINP to RXINN Bypass Switch
Shorts RXINP to RXINN allowing a signal to pass through the ICs. Disable the receiver
amplifier when RECBYP = 1.
0 = Disabled
1 = Enabled
RXIN to SPKL Bypass Switch
Shorts RXINP/RXINN to SPKLP/SPKLN allowing either the internal or an external
receiver amplifier to power the left speaker. Disable the left speaker amplifier when
SPKBYP = 1.
0 = Disabled
1 = Enabled
0dB
RECLEN
0dB
RECREN
SPLEN
with FlexSound Technology
+6dB
POWER/DISTORTION
SPEAKER AMPLIFIER BYPASS USING THE
LIMITER
INTERNAL RECEIVER AMPLIFIER
SPKBYP
RECBYP
RECN/RXINN
RECP/RXINP
an external receiver amplifier is used, route its output to
the left speaker through RECP/RXINP and RECN/RXINN,
bypassing the Class D amplifier. In systems where an
external amplifier drives both the receiver and the IC's
line input, one of the differential signals can be discon-
nected from the receiver when not needed by passing it
through the analog switch that connects RECP/RXINP to
RECN/RXINN.
SPKLVDD
SPKLGND
SPKLN
SPKLP
Stereo Audio Codec
DESCRIPTION
0dB
RECLEN
0dB
RECREN
SPLEN
+6dB
POWER/DISTORTION
CONTROLLING AN EXTERNAL RECEIVE
LIMITER
SPKBYP
RECBYP
AMPLIFIER AND SPEAKER
RECN/RXINN
RECP/RXINP
SPKLGND
SPKLVDD
SPKLP
SPKLN
EXTERNAL
RECEIVER
AMP
107
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