User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 366 of 909 2019 Ambiq Micro, Inc.
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30:26 PGARIGHT 0x0 RW
Right channel PGA gain.
P405DB = 0x1F - 40.5 db gain.
P390DB = 0x1E - 39.0 db gain.
P375DB = 0x1D - 37.5 db gain.
P360DB = 0x1C - 36.0 db gain.
P345DB = 0x1B - 34.5 db gain.
P330DB = 0x1A - 33.0 db gain.
P315DB = 0x19 - 31.5 db gain.
P300DB = 0x18 - 30.0 db gain.
P285DB = 0x17 - 28.5 db gain.
P270DB = 0x16 - 27.0 db gain.
P255DB = 0x15 - 25.5 db gain.
P240DB = 0x14 - 24.0 db gain.
P225DB = 0x13 - 22.5 db gain.
P210DB = 0x12 - 21.0 db gain.
P195DB = 0x11 - 19.5 db gain.
P180DB = 0x10 - 18.0 db gain.
P165DB = 0xF - 16.5 db gain.
P150DB = 0xE - 15.0 db gain.
P135DB = 0xD - 13.5 db gain.
P120DB = 0xC - 12.0 db gain.
P105DB = 0xB - 10.5 db gain.
P90DB = 0xA - 9.0 db gain.
P75DB = 0x9 - 7.5 db gain.
P60DB = 0x8 - 6.0 db gain.
P45DB = 0x7 - 4.5 db gain.
P30DB = 0x6 - 3.0 db gain.
P15DB = 0x5 - 1.5 db gain.
0DB = 0x4 - 0.0 db gain.
M15DB = 0x3 - -1.5 db gain.
M300DB = 0x2 - -3.0 db gain.
M45DB = 0x1 - -4.5 db gain.
M60DB = 0x0 - -6.0 db gain.
Table 527: PCFG Register Bits
Bit Name Reset RW Description