SI3050-E-FM Silicon Laboratories Inc, SI3050-E-FM Datasheet - Page 78
SI3050-E-FM
Manufacturer Part Number
SI3050-E-FM
Description
IC VOICE DAA GCI/PCM/SPI 24-QFN
Manufacturer
Silicon Laboratories Inc
Series
-r
Datasheet
1.SI3050-E-FM.pdf
(128 pages)
Specifications of SI3050-E-FM
Function
Data Access Arrangement (DAA)
Interface
GCI, PCM, SPI
Number Of Circuits
1
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
8.5mA
Power (watts)
*
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-WFQFN Exposed Pad
Includes
*
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Si3050 + Si3011/18/19
Register 20. Call Progress RX Attenuation
Reset settings = 0000_0000
Register 21. Call Progress TX Attenuation
Reset settings = 0000_0000
78
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. 1.4
D4
D4
ARM[7:0]
ATM[7:0]
R/W
R/W
Function
Function
D3
D3
D2
D2
D1
D1
D0
D0
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