Datasheet

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MAX98090 Ultra-Low Power Stereo Audio Codec

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Table 67. Left Speaker Amplifier Volume Control Register

Table 68. Right Speaker Amplifier Volume Control Register

The speaker output programmable gain amplifiers (PGAs)

have a wide volume adjustment range from -48dB to

+14dB, provide a high attenuation mute control (Table 67

and Table 68), and feature programmable click and pop

reduction options. See Click-and-Pop Reduction section

for details. In addition to the programmable gain range,

the Class D output driver also provides another 6dB of

built-in gain.

ADDRESS: 0x31

DESCRIPTION

BIT NAME TYPE POR

7 SPLM R/W 0

Left Speaker Output Mute Enable

0 : Speaker output volume set by the volume control bits.

1 : Left speaker output muted.

6 — — — —

SPVOLL[5:0] R/W

Left Speaker Output Amplier Volume Control Conguration

4 0

0x3F: +14dB

0x3E: +13.5dB

0x3D: +13dB

0x3C: +12.5dB

0x3B: +12dB

0x3A: +11.5dB

0x39: +11dB

0x38: +10.5dB

0x37: +10dB

0x36: +9.5dB

0x35: +9dB

0x34: +8dB

0x33: +7dB

0x32: +6dB

0x31: +5dB

0x30: +4dB

0x2F: +3dB

0x2E: +2dB

0x2D: +1dB

0x2C: +0dB

0x2B: -1dB

0x2A: -2dB

0x29: -3dB

0x28: -4dB

0x27: -5dB

0x26: -6dB

0x25: -8dB

0x24: -10dB

0x23: -12dB

0x22: -14dB

0x21: -17dB

0x20: -20dB

0x1F: -23dB

0x1E: -26dB

0x1D: -29dB

0x1C: -32dB

0x1B: -36dB

0x1A: -40dB

0x19: -44dB

0x18: -48dB

3 1

2 1

1 0

0 0

ADDRESS: 0x32