si3019-x-fs Silicon Laboratories, si3019-x-fs Datasheet - Page 64
si3019-x-fs
Manufacturer Part Number
si3019-x-fs
Description
Global Serial Interface Direct Access Arrangement
Manufacturer
Silicon Laboratories
Datasheet
1.SI3019-X-FS.pdf
(94 pages)
- Current page: 64 of 94
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Si3018/19/10
Register 20. Call Progress Receive Attenuation
Reset settings = 0000_0000
Register 21. Call Progress Transmit Attenuation
Reset settings = 0000_0000
64
Bit
7:0
Bit
7:0
Name
Name
Type
Type
Bit
Bit
ARM[7:0]
ATM[7:0]
Name
Name
D7
D7
D6
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
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
D6
D5
D5
D4
D4
ARM[7:0]
ATM[7:0]
R/W
R/W
D3
D3
Rev. 1.05
D2
D2
Function
Function
D1
D1
D0
D0
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