SI3011-F-FSR Silicon Laboratories Inc, SI3011-F-FSR Datasheet - Page 69

• Manufacturer Part Number: SI3011-F-FSR
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3011-F-FSR

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Register 20. Call Progress RX Attenuation
Reset settings = 0000_0000
Register 21. Call Progress TX Attenuation
Reset settings = 0000_0000
Bit
7:0
Bit
7:0
Name
Name
Type
Type
Bit
Bit
ARM[7:0]
ATM[7:0]
Name
Name
D7
D7
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
D6
D5
D5
Rev. 1.11
D4
D4
ARM[7:0]
ATM[7:0]
R/W
R/W
Function
Function
D3
D3
Si3050 + Si3011
D2
D2
D1
D1
D0
D0
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