Datasheet

Maxim Integrated │ 95
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Table 23. Line Input Level Configuration Register
Table 24. Input Mode and Source Configuration Register
ADDRESS: 0x0E
DESCRIPTION
BIT NAME TYPE POR
7 MIXG135 R/W 0
Enable for a -6dB Reduction for Two Single-Ended Line A Mixer Inputs
0: Normal line A mixer operation.
1: Gain is reduced by -6dB when two single-ended inputs are selected.
6 MIXG246 R/W 0
Enable for a -6dB Reduction for Two Single-Ended Line B Mixer Inputs
0: Normal line B mixer operation.
1: Gain is reduced by -6dB when two single-ended inputs are selected
5
LINAPGA[2:0] R/W
0
Line Input A Programmable Internal Preamp Gain Conguration
4 1
000: 20dB
001: 14dB
010: 3dB
011: 0dB
100: -3dB
101, 110, 111: -6dB
3 1
2
LINBPGA[2:0] R/W
0
Line Input B Programmable Internal Preamp Gain Conguration
1 1
000: 20dB
001: 14dB
010: 3dB
011: 0dB
100: -3dB
101, 110, 111: -6dB
0 1
ADDRESS: 0x0F
DESCRIPTION
BIT NAME TYPE POR
7 EXTBUFA R/W 0 Selects external resistor gain mode for line input A.
6 EXTBUFB R/W 0 Selects external resistor gain mode for line input B.
5 — — — —
4 — — — —
3 — — — —
2 — — — —
1
EXTMIC[1:0] R/W
0
External Analog Microphone (IN5/IN6) MUX Conguration (WLP Only)
00: External microphone disabled:
IN1/IN2 selected for MIC 1
IN3/IN4 selected for MIC 2
10: External microphone to MIC 2:
IN1/IN2 selected for MIC 1
IN5/IN6 selected for MIC 2
0 0
01: External microphone to MIC 1:
IN5/IN6 selected for MIC 1
IN3/IN4 selected for MIC 2
11: Reserved.