參數(shù)資料
型號： SI3050-E1-GT
廠商： Silicon Laboratories Inc
文件頁數(shù)： 110/128頁
文件大?。?/td> 0K
描述： IC VOICE DAA SYSTEM SIDE 24QFN
標準包裝： 74
系列： *
Si3050 + Si3011/18/19
82
Rev. 1.5
Reset settings = 0000_0000
Register 26. DC Termination Control
Bit
D7D6D5D4D3D2D1
D0
Name
DCV[1:0]
MINI[1:0]
0
ILIM
DCR
Type
R/W
Bit
Name
Function
7:6
DCV[1:0]
TIP/RING Voltage Adjust. Si3018 and Si3019 line-side only.
These bits adjust the voltage on the DCT pin of the line-side device, which affects the TIP/
RING voltage on the line. Low-voltage countries should use a lower TIP/RING voltage. Rais-
ing the TIP/RING voltage can improve signal headroom.
DCV[1:0]
DCT Pin Voltage
00
3.1 V
01
3.2 V
10
3.35 V
11
3.5 V
For Si3011 line-side device, the only valid setting for DCV[1:0] is 10.
5:4
MINI[1:0]
Minimum Operational Loop Current. Si3018 and Si3019 line-side only.
Adjusts the minimum loop current at which the DAA can operate. Increasing the minimum
operational loop current can improve signal headroom at a lower TIP/RING voltage.
MINI[1:0]
Min Loop Current
00
10 mA
01
12 mA
10
14 mA
11
16 mA
For Si3011 line-side device, the only valid setting for MINI[1:0] is 00.
3:2
Reserved
These bits must always be written to 0.
1
ILIM
Current Limiting Enable.
0 = Current limiting mode disabled.
1 = Current limiting mode enabled. This mode limits loop current to a maximum of 60 mA per
the TBR21 standard.
0
DCR
DC Impedance Selection.
0=50
dc termination is selected. This mode should be used for all standard applications.
1 = 800
dc termination is selected.
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SI3050-E1-GTR 制造商:Silicon Laboratories Inc 功能描述:SI3050 VOICE DAA SYSTEM-SIDE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC VOICE DAA SYSTEM SIDE 24QFN 制造商:Silicon Laboratories Inc 功能描述:Si3050 Voice DAA System-Side
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