MAX9888EWY+T Maxim Integrated Products, MAX9888EWY+T Datasheet - Page 87

• Manufacturer Part Number: MAX9888EWY+T
• Description: IC CODEC AUDIO FLEXSOUND 63WLP
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive®, FLEXSOUND™r
• Type: Class Dr

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

The IC’s preoutput PGAs allow line input signals to be attenuated to match DAC output signal levels. Use the 0dB
setting for maximum performance.
Table 20. Preoutput PGA Registers
The IC includes a single differential receiver amplifier. The receiver amplifier is designed to drive 32I receivers. 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.
Figure 25. Receiver Amplifier Block Diagram
REGISTER
0x35/0x36/
0x37
BIT
3
2
1
0
PGAOUT1/
PGAOUT2/
PGAOUT1:
0dB TO -23dB
PGAOUT2:
0dB TO -23dB
PGAOUT3
NAME
PREOUT1
PREOUT2
DALEN
DAREN
DACR
DACL
+9dB
+9dB
Preoutput PGA Level
VALUE
with FLEXSOUND Technology
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
MIXREC
MIX
RECVOL:
+8dB TO -62dB
GAIN (dB)
-11
-13
-1
-3
-5
-7
-9
Stereo Audio CODEC
0
RECEN
DESCRIPTION
0dB
RECBYP
SPKBYP
VALUE
0xA
0xB
0xC
0xD
0x8
0x9
0xE
0xF
RECP/
RXINP
RECN/
RXINN
Receiver Amplifier
Preoutput PGA
GAIN (dB)
Mute
Mute
Mute
-15
-17
-19
-21
-23
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