- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄296790 > PBL38773/1ML (INFINEON TECHNOLOGIES AG) TELECOM-SLIC, PQCC32 PDF資料下載
參數(shù)資料
| 型號： | PBL38773/1ML |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | TELECOM-SLIC, PQCC32 |
| 封裝： | PLASTIC, VQFN-32 |
| 文件頁數(shù)： | 53/64頁 |
| 文件大小： | 1052K |
| 代理商： | PBL38773/1ML |
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頁第49頁第50頁第51頁第52頁當前第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
Ringing FlexiSLIC
PBL 38773/1
Loop Monitoring Functions
Data Sheet
57
DS1, 2003-06-18
10
Loop Monitoring Functions
The loop current, ground key and ring-trip detectors report their status through a
common output, DET. The particular detector to be connected to the detector pin, DET,
is selected via the three bit control interface C1, C2 and C3. Please refer to Chapter 11
for a description of the control interface.
10.1
Detector Output (DET)
The SLIC incorporates a detector output driver designed as an open collector (npn), an
internal 10 k
pull-up resistor to V
CC. The emitter of the drive transistor is connected to
AGND. The logic high, 1, level is 5 V and the logic low, 0, is AGND.
10.2
Loop Current Detector
The loop current detector indicates that the telephone is off-hook and that DC current is
flowing in the loop by setting the output pin DET to a logic low level when selected. The
loop current detector threshold value,
I
LTh, where the loop current detector changes
state, is programmable with the
R
LD resistor. RLD connects between pin PLD and ground
and is calculated according to:
[39]
The loop current detector is internally filtered and is not influenced by the AC signal at
the two-wire side. In the TIPX Open the DET output changes to logic low state when the
RINGX current exceeds
I
LTh.
R
LD
500
ILth
----------
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PBL38773/1SO | TELECOM-SLIC, PDSO28 |
| PC-PVC-271K | 1 ELEMENT, 270 uH, GENERAL PURPOSE INDUCTOR |
| PC-PVC-270K | 1 ELEMENT, 27 uH, GENERAL PURPOSE INDUCTOR |
| PC-PVC-331K | 1 ELEMENT, 330 uH, GENERAL PURPOSE INDUCTOR |
| PC-PVC-392K | 1 ELEMENT, 3900 uH, GENERAL PURPOSE INDUCTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PBL38780/1QSD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PBL387821QSD | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Infineon Technologies AG 功能描述: |
| PBL38812 | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Voice-switch circuit for Handsfree speakerphone TAM |
| PBL388121SO | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Voice-switch circuit for Handsfree speakerphone TAM |
| PBL388121SOT | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Voice-switch circuit for Handsfree speakerphone TAM |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。