Datasheet

Maxim Integrated │ 141
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Table 73. Right Headphone Amplifier Volume Control Register
Table 72. Left Headphone Amplifier Volume Control Register
The headphone output programmable gain amplifiers
(PGAs) have a wide volume adjustment range from -67dB
to +3dB, provide a high attenuation mute control (Table 72
and Table 73), and feature programmable click-and-pop
reduction options. See the Click-and-Pop Reduction sec-
tion for details.
ADDRESS: 0x2D
DESCRIPTION
BIT NAME TYPE POR
7 HPRM R/W 0
Right Headphone Output Mute Enable
0 : Headphone output volume set by the volume control bits.
1 : Headphone output muted.
6 — — — —
5 — — — —
4
HPVOLR[4:0] R/W
1
Right Headphone Output Amplier Volume Control Conguration
3 1
0x1F: +3dB
0x1E: +2.5dB
0x1D: +2dB
0x1C: +1.5dB
0x1B: +1dB
0x1A: +0dB
0x19: -1dB
0x18: -2dB
0x17: -3dB
0x16: -4dB
0x15: -5dB
0x14: -7dB
0x13: -9dB
0x12: -11dB
0x11: -13dB
0x10: -15dB
0x0F: -17dB
0x0E: -19dB
0x0D: -22dB
0x0C: -25dB
0x0B: -28dB
0x0A: -31dB
0x09: -34dB
0x08: -37dB
0x07: -40dB
0x06: -43dB
0x06: -47dB
0x04: -51dB
0x03: -55dB
0x02: -59dB
0x01: -63dB
0x00: -67dB
2 0
1 1
0 0
ADDRESS: 0x2C
DESCRIPTION
BIT NAME TYPE POR
7 HPLM R/W 0
Left Headphone Output Mute Enable
0 : Headphone output volume set by the volume control bits.
1 : Headphone output muted.
6 — — — —
5 — — — —
4
HPVOLL[4:0] R/W
1
Left Headphone Output Amplier Volume Control Conguration
3 1
0x1F: +3dB
0x1E: +2.5dB
0x1D: +2dB
0x1C: +1.5dB
0x1B: +1dB
0x1A: +0dB
0x19: -1dB
0x18: -2dB
0x17: -3dB
0x16: -4dB
0x15: -5dB
0x14: -7dB
0x13: -9dB
0x12: -11dB
0x11: -13dB
0x10: -15d
0x0F: -17dB
0x0E: -19dB
0x0D: -22dB
0x0C: -25dB
0x0B: -28dB
0x0A: -31dB
0x09: -34dB
0x08: -37dB
0x07: -40dB
0x06: -43dB
0x06: -47dB
0x04: -51dB
0x03: -55dB
0x02: -59dB
0x01: -63dB
0x00: -67dB
2 0
1 1
0 0