參數(shù)資料
型號: SI3056SSI3-EVB
廠商: Silicon Laboratories Inc
文件頁數(shù): 64/94頁
文件大?。?/td> 0K
描述: BOARD EVAL SI3056/SI3008 SSI
標(biāo)準(zhǔn)包裝: 1
主要目的: 電信,數(shù)據(jù)采集裝置(DAA)
已用 IC / 零件: Si3056
已供物品: 板,CD
Si3056
Si3018/19/10
Rev. 1.05
67
Reset settings = 0001_1001
Register 24. Ring Validation Control 3
Bit
D7
D6
D5D4
D3D2D1D0
Name
RNGV
RAS[5:0]
Type
R/W
R
R/W
Bit
Name
Function
7RNGV
Ring Validation Enable.
0 = Ring validation feature is disabled.
1 = Ring validation feature is enabled in both normal operating mode and low-power
mode.
6
Reserved
Reserved and may read either a 1 or 0.
5:0
RAS[5:0]
Ring Assertion Time.
These bits set the minimum ring frequency for a valid ring signal within a 10% margin of
error. During ring qualification, a timer is loaded with the RAS[5:0] field upon a TIP/RING
event and decrements at a regular rate. When a subsequent TIP/RING event occurs, the
timer value is compared to the RMX[5:0] field and if it exceeds the value in RMX[5:0] then
the frequency of the ring is too high and the ring is invalidated. The difference between
RAS[5:0] and RMX[5:0] identifies the minimum duration between TIP/RING events to qual-
ify as a ring, in binary-coded increments of 2.0 ms (nominal). A TIP/RING event typically
occurs twice per ring tone period. At 20 Hz, TIP/RING events would occur every 1/
(2 x 20 Hz) = 25 ms. To calculate the correct RMX[5:0] value for a frequency range [f_min,
f_max], the following equation should be used:
To compensate for error margin and ensure a sufficient ring detection window, it is recom-
mended that the calculated value of RMX[5:0] be incremented by 1.
RMX 5:0
[] RAS 5:0
[]
1
2f_min
×
2 ms
×
------------------------------------------- RMX RAS
,
相關(guān)PDF資料
PDF描述
CW252016-82NG INDUCTOR 82NH 1008 SMD
SI3056PPT3-EVB BOARD EVAL FOR DAA SI3056/SI3008
SI3056DC3-EVB DAUGHTERCARD DAA SI3056/SI3008
CW252016-68NG INDUCTOR 68NH 1008 SMD
GCM22DSUI CONN EDGECARD 44POS DIP .156 SLD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Si3056SSI-EB 功能描述:撥號開發(fā)工具 Global DAA Standard Serial Interface EVB RoHS:否 制造商:Multi-Tech Systems 產(chǎn)品:Development Kits 類型:RJ Modems 工具用于評估:MT5656RJ 數(shù)據(jù)速率:115.2 kbps 接口類型:RJ-11, RS-232 工作電源電壓:3.3 V, 5 V
Si3056SSI-EVB 功能描述:界面開發(fā)工具 DAA Standard Serial Interface Eval Board RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
SI3056-X-FS 制造商:SILABS 制造商全稱:SILABS 功能描述:GLOBAL SERIAL INTERFACE DIRECT ACCESS ARRANGEMENT
SI3060 制造商:未知廠家 制造商全稱:未知廠家 功能描述:GLOBAL LINE-SIDE DAA FOR EMBEDDED SYSTEM-SIDE MODULE
SI3060-X-FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:GLOBAL LINE-SIDE DAA FOR EMBEDDED SYSTEM-SIDE MODULE