Rainbow Electronics MAX98089 - Manual (Page 68)

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Table 2. Power Management Registers (continued)
REGISTER BIT NAME DESCRIPTION
0x4D
7 HPLEN
Left Headphone Enable
0 = Disabled
1 = Enabled
6 HPREN
Right Headphone Enable
0 = Disabled
1 = Enabled
5 SPLEN
Left Speaker Enable
0 = Disabled
1 = Enabled
4 SPREN
Right Speaker Enable
0 = Disabled
1 = Enabled
3 RECLEN
Receiver/Left Line Output Enable. Use this bit to enable the differential receiver output
or left line output.
0 = Disabled
1 = Enabled
2 RECREN
Right Line Output Enable. Use this bit to enable the right line output.
0 = Disabled
1 = Enabled
1 DALEN
Left DAC Enable
0 = Disabled
1 = Enabled
0 DAREN
Right DAC Enable
0 = Disabled
1 = Enabled
0x4E
7 BGEN
Bandgap Enable. Must be enabled for proper operation of the 2.5V regulator and as-
sociated circuitry.
0 = Disabled
1 = Enabled
6 SPREGEN
2.5V Regulator Enable. SPREGEN enables a 2.5V internal regulator required for the
ADC, speaker and receiver/line out amplifier. The 2.5V regulator is powered by SP-
KLVDD.
0 = Disabled
1 = Enabled
5 VCMEN
Common-Mode Voltage Resistor String Enable. VCMEN enables the common mode
voltage for the input and output amplifiers in the codec.
0 = Disabled
1 = Enabled
4 BIASEN
Chip Bias Enable. BIASEN needs to be set for the codec amplifiers to be enabled.
0 = Disabled
1 = Enabled
0 JDWK See the Jack Detection section.