- 您現(xiàn)在的位置：買賣IC網 > PDF目錄16518 > SI3216MPPQ1-EVB (Silicon Laboratories Inc)BOARD EVAL W/SI3201 INTERFACE PDF資料下載
參數(shù)資料
| 型號： | SI3216MPPQ1-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 49/122頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL W/SI3201 INTERFACE |
| 標準包裝： | 1 |
| 系列： | ProSLIC® |
| 主要目的： | 接口，模擬前端（AFE） |
| 已用 IC / 零件： | Si3216 |
| 已供物品： | 板，CD |
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頁當前第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
Si3216
32
Rev. 1.0
Not
Recommended
fo
r N
ew
D
esi
gn
s
Figure 18. Loop Closure Detection
2.1.6. 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 18. 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 15).
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 25 lists the registers that must be
written or monitored to correctly detect a loop closure
condition.
2.1.7. Loop Closure Threshold Hysteresis
Programmable hysteresis to the loop closure threshold
can
be
enabled
by
setting
HYSTEN = 1
(direct
Register 108, bit 0). The hysteresis is defined by LCRT
(indirect Register 15) and LCRTL (indirect Register 66),
which set the upper and lower bounds, respectively.
2.1.8. Voltage-Based Loop Closure Detection
An optional voltage-based loop closure detection mode
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.
ISP_OUT
NCLR
LCDI
Input
Signal
Processor
Digital
LPF
Loop Closure
Threshold
D ebounce
Filter
+
–
LCR
LCIP
LCIE
Interrupt
Logic
LCS
LVS
LCVE
LFS
LCRTL
LCRT
HYSTEN
Table 25. Register Set for Loop
Closure Detection
Parameter
Register
Location
Loop Closure
Interrupt Pending
LCIP
Direct Reg.19
Loop Closure
Interrupt Enable
LCIE
Direct Reg. 22
Loop Closure Threshold
LCRT[5:0]
Indirect Reg.15
Loop Closure
Threshold—Lower
LCRTL[5:0]
Indirect Reg. 66
Loop Closure Filter
Coefficient
NCLR[12:0]
Indirect Reg. 22
Loop Closure Detect
Status (monitor only)
LCR
Direct Reg. 68
Loop Closure Detect
Debounce Interval
LCDI[6:0]
Direct Reg. 69
Hysteresis Enable
HYSTEN
Direct Reg. 108
Voltage-Based Loop
Closure
LCVE
Direct Reg. 108
相關PDF資料 |
PDF描述 |
|---|---|
| VI-JVV-EZ-S | CONVERTER MOD DC/DC 5.8V 25W |
| UUR1V101MNL1GS | CAP ALUM 100UF 35V 20% SMD |
| 6457207-3 | C/A SM ST TO LC DUP 3M1 |
| 6457072-3 | C/A LC TO SC DUP SM 3M1 |
| H3AWH-5006M | IDC CABLE - HSC50H/AE50M/HPL50H |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| Si3216MPPQX-EB | 功能描述:撥號開發(fā)工具 QFN EVB w/ discrete Line Interface RoHS:否 制造商:Multi-Tech Systems 產品:Development Kits 類型:RJ Modems 工具用于評估:MT5656RJ 數(shù)據速率:115.2 kbps 接口類型:RJ-11, RS-232 工作電源電壓:3.3 V, 5 V |
| SI3216MPPQX-EVB | 功能描述:音頻 IC 開發(fā)工具 Si3216M QFN Eval Board RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3216MPPT1-EVB | 功能描述:BOARD EVAL W/SI3201 INTERFACE RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| SI3216MPPTX-EVB | 功能描述:BOARD EVAL W/DISCRETE INTERFACE RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| SI3216PPQ1-EVB | 功能描述:音頻 IC 開發(fā)工具 Si3216 QFN Eval Board RoHS:否 制造商:Texas Instruments 產品: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。