Datasheet

SSM2603 Data Sheet
Rev. C | Page 30 of 32
NOISE GATE, ADDRESS 0x12
Table 40. Noise Gate Register Bit Map
D8 D7 D6 D5 D4 D3 D2 D1 D0
0
NGTH[4:0]
NGG[1:0]
NGAT
Table 41. Descriptions of Noise Gate Register Bits
Bit Name Description Settings
NGTH[4:0] Noise gate threshold 00000 = −76.5 dBFS (default)
00001 = −75 dBFS
… In 1.5 dBFS steps
11110 = −31.5 dBFS
11111 = −30 dBFS
NGG[1:0] Noise gate type X0 = hold PGA gain constant (default)
1
01 = mute output
11 = reserved
NGAT Noise gate control 0 = noise gate disable (default)
1 = noise gate enable
1
X = don’t care.