Si3050 datasheet(78/128 Pages) SILABS

78 / 128 page

Si3050 + Si3011/18/19

Rev. 1.5

Reset settings = 0000_0000

Bit

D7D6D5D4D3

D1D0

Name

ARM[7:0]

Type

R/W

Bit

Name

Function

7:0

ARM[7:0]

AOUT Receive Path Attenuation.

When decremented from the default setting, these bits linearly attenuate the AOUT

receive path signal used for call progress monitoring. Setting the bits to all 0s mutes the

AOUT receive path.

Attenuation = 20 log(ARM[7:0]/64)

1111_1111 = +12 dB (gain)

0111_1111 = +6 dB (gain)

0100_0000 = 0 dB

0010_0000 = –6 dB (attenuation)

0001_0000 = –12 dB

...

0000_0000 = Mute

Bit

D6D5D4D3D2

D1D0

Name

ATM[7:0]

Type

R/W

Bit

Name

Function

7:0

ATM[7:0]

AOUT Transmit Path Attenuation.

When decremented from the default settings, these bits linearly attenuate the AOUT trans-

mit path signal used for call progress monitoring. Setting the bits to all 0s mutes the AOUT

transmit path.

Attenuation = 20 log(ATM[7:0]/64)

1111_1111 = +12 dB (gain)

0111_1111 = +6 dB (gain)

0100_0000 = 0 dB

0010_0000 = –6 dB (attenuation)

0001_0000 = –12 dB

...

0000_0000 = Mute

Si3050 Datasheet(PDF) 78 Page - Silicon Laboratories

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