SI3050-E-FT Silicon Laboratories Inc, SI3050-E-FT Datasheet - Page 75

• Manufacturer Part Number: SI3050-E-FT
• Description: IC VOICE DAA GCI/PCM/SPI 20TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3050-E-FT

• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Includes: Line Voltage Monitor, Loop Current Monitor, Overload Detection, Parallel Handset Detection, Polarity Reversal Detection, TIP and
• Function: Data Access Arrangement (DAA)
• Interface: PCM, Serial, SPI
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 8.5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Product: RF / Wireless
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Supply Current: 8.5 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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. 1.31
D4
D4
ARM[7:0]
ATM[7:0]
R/W
R/W
Function
Function
D3
D3
Si3050 + Si3018/19
D2
D2
D1
D1
D0
D0
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