Rainbow Electronics MAX98089 - Manual (Page 97)

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Receiver Amplifier
The IC includes a single differential receiver amplifier. The receiver amplifier is designed to drive a 32I earpiece
speaker. In cases where a single transducer is used for the loudspeaker and receiver, use the SPKBYP switch to route
the receiver amplifier output to the left speaker outputs. The receiver amplifier can also be configured as stereo single-
ended line outputs using the I
2 C interface.
Figure 25. Receiver Amplifier Block Diagram
DALEN
DACL
DAREN
DACR
MIXRECR
MIX
MIXRECL
MIX 0dB
0dB
RECVOLL:
+8dB TO -62dB
RECLEN
RECREN
RECVOLR:
+8dB TO -62dB RECBYP
SPKBYP
RECP/
LOUTL/
RXINP
RECN/
LOUTR/
RXINN
SPKLP
SPKLN
LINEMODE
SPLEN
+6dB