- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373395 > SI3210M-KT (Electronic Theatre Controls, Inc.) PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION PDF資料下載
參數(shù)資料
| 型號： | SI3210M-KT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | Codec |
| 英文描述： | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| 中文描述： | ProSLIC產(chǎn)品可編程的CMOS用戶接口/有振鈴編解碼器/電池電壓生成 |
| 文件頁數(shù)： | 26/122頁 |
| 文件大小： | 1950K |
| 代理商： | SI3210M-KT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當(dāng)前第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁
Si3210/Si3211/Si3212
26
Preliminary Rev. 1.11
Figure 16. Loop Closure Detection
Loop Closure Detection
A loop closure event signals that the terminal equipment
has gone off-hook during on-hook transmission or on-
hook active states. The ProSLIC performs loop closure
detection digitally using its on-chip monitor A/D
converter. The functional blocks required to implement
loop closure detection are shown in Figure 16. The
primary input to the system is the Loop Current Sense
value provided in the LCS register (direct Register 79).
The LCS value is processed in the Input Signal
Processor when the ProSLIC is in the on-hook
transmission or on-hook active linefeed state, as
indicated by the Linefeed Shadow register, LFS[2:0]
(direct Register 64). The data then feeds into a
programmable digital low-pass filter, which removes
unwanted ac signal components before threshold
detection.
The output of the low-pass filter is compared to a
programmable threshold, LCRT (indirect register 28).
The threshold comparator output feeds a programmable
debouncing filter. The output of the debouncing filter
remains in its present state unless the input remains in
the opposite state for the entire period of time
programmed by the loop closure debounce interval,
LCDI (direct Register 69). If the debounce interval has
been satisfied, the LCR bit will be set to indicate that a
valid loop closure has occurred. A loop closure interrupt
is generated if enabled by the LCIE bit (direct
Register 22). Table 24 lists the registers that must be
written or monitored to correctly detect a loop closure
condition.
Loop Closure Threshold Hysteresis
Silicon revisions C and higher support the addition of
programmable hysteresis to the loop closure threshold,
which can be enabled by setting HYSTEN = 1 (direct
Register 108, bit 0). The hysteresis is defined by LCRT
(indirect Register 28) and LCRTL (indirect Register 43),
which set the upper and lower bounds, respectively.
Voltage-Based Loop Closure Detection
Silicon revisions C and higher also support an optional
voltage-based loop closure detection mode, which is
enabled by setting LCVE = 1 (direct Register 108,
bit 2). In this mode the loop voltage is compared to the
loop closure threshold register (LCRT) which represents
a minimum voltage threshold instead of a maximum
current threshold. If hysteresis is also enabled, then
LCRT represents the upper voltage boundary and
LCRTL represents the lower voltage boundary for
hysteresis. Although voltage-based loop closure
detection is an option, the default current-based loop
closure detection is recommended.
Linefeed Calibration
ISP_OUT
NCLR
LCDI
Input
Signal
Processor
Digital
LPF
Loop Closure
Threshold
Debounce
Filter
+
–
LCR
LCIP
LCIE
Interrupt
Logic
LCS
LVS
LCVE
LFS
LCRTL
LCRT
HYSTEN
Table 24. Register Set for Loop
Closure Detection
Parameter
Loop Closure
Interrupt Pending
Loop Closure
Interrupt Enable
Loop Closure Threshold
Loop Closure
Threshold—Lower
Loop Closure Filter
Coefficient
Loop Closure Detect
Status (monitor only)
Loop Closure Detect
Debounce Interval
Hysteresis Enable
Voltage-Based Loop
Closure
Register
LCIP
Location
Direct Reg. 19
LCIE
Direct Reg. 22
LCRT[5:0]
LCRTL[5:0]
Indirect Reg. 28
Indirect Reg. 43
NCLR[12:0]
Indirect Reg. 35
LCR
Direct Reg. 68
LCDI[6:0]
Direct Reg. 69
HYSTEN
LCVE
Direct Reg. 108
Direct Reg. 108
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI3210M-BT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3210 | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3210-BT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3210-KT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3211-BT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI3210M-KTR | 功能描述:射頻無線雜項 Sgl Ch SLIC/Codec w/ MOSFET Decoder RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| SI3210MPPQ1-EVB | 功能描述:音頻 IC 開發(fā)工具 Si3210M QFN Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3210MPPQX-EVB | 功能描述:音頻 IC 開發(fā)工具 Si3210M QFN Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3210MPPT1-EVB | 功能描述:音頻 IC 開發(fā)工具 U 634-3210-PPQX-EVB RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3210MPPTX-EVB | 功能描述:音頻 IC 開發(fā)工具 U 634-3210-PPQX-EVB RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。