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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 39/64頁(yè) |
| 文件大小： | 1052K |
| 代理商： | PBL38773/1ML |
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Ringing FlexiSLIC
PBL 38773/1
Ringing Voltage
Data Sheet
44
DS1, 2003-06-18
result of the control device limiting the line current. Figure 15 illustrates ringing with a
DC offset. This method is useful when trying to extend the ring-trip capability. When
programming the ring-trip threshold there must be some margin so that no false ring-trip
occurs when ringing at high REN. In on-hook the DC voltage will not have any affect on
the load since there is no DC path, but when the telephone goes off-hook there will be a
DC path and the extra voltage will give a high ring current. This arrangement makes it
possible to set a higher ringtrip threshold value and thereby gives a larger margin
between the ring current in on-hook, with low RENs, and the ring current in off-hook. To
keep the same amplitude on the AC signal, as when ringing without DC offset, the battery
has to be increased by the same value as the programmed DC offset. The signal to
V
R-
pin is supplied with a positive DC offset to AGND. The signal on the Tip-wire will be
applied with a positive DC offset to the fixed voltage
V
BAT/2. The signal on the Ring-wire
will be applied with a negative DC offset.
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 |
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參數(shù)描述 |
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| 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 |
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