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參數(shù)資料
| 型號： | CPC5611ATR |
| 元件分類： | 通信、網(wǎng)絡模塊及開發(fā)工具 |
| 英文描述： | Telecomm/Datacomm |
| 中文描述： | 電信/數(shù)據(jù)通信 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大小： | 410K |
| 代理商： | CPC5611ATR |
CPC5610/CPC5611
Rev. 8.0
www.clare.com
13
3.5 AC Characteristics
3.5.1 Resistive Termination Applications
North American and Japanese telephone line AC ter-
mination requirements are met with a resistive 600
AC termination. Receive termination is applied to the
LITELINK ZNT pin (pin 29) as a 301
resistor, R
ZNT
(R10). A 150
resistor, R18 (R
ZTX
), applied to the
LITELINK ZTX pin (pin 30) sets the correct transmit
gain and impedance.
3.5.2 Reactive Termination Applications
Many areas use a single-pole complex impedance to
model the telephone network transmission line char-
acteristic impedance as shown in the table below.
Matching a complex impedance requires the use of
complex networks on ZNT and ZTX. In order to
accommodate high power levels, it is necessary to
modify the transmit and receive gain characteristics of
your LITELINK implementation. The complex network
on the ZTX pin increases transmit gain by 7 dB. A 7
dB pad may be inserted before the TX+ and TX- pins
to provide overall unity gain. Similarly, with a complex
network, the ratio of R12 (R
NTF
) and R13 (R
NTS
) must
be modified from 1:1 to 1:.287, which introduces a 7
dB loss in the receive path from tip and ring to ZNT.
4. Regulatory Information
LITELINK can be used to build products that comply
with the requirements of TIA/EIA/IS-968 (formerly
FCC part 68), FCC part 15B, TBR-21, EN60950,
UL1950, EN55022B, IEC950/IEC60950, CISPR22B,
EN55024, and many other standards. LITELINK com-
plies with the requirements of UL1577. LITELINK pro-
vides supplementary isolation. Metallic surge
requirements are met through the inclusion of a Sidac-
tor in the application circuit. Longitudinal surge protec-
tion is provided by LITELINK’s optical-across-the-
barrier technology and the use of high-voltage compo-
nents in the application circuit as needed.
The information provided in this document is intended
to inform the equipment designer but it is not sufficient
to assure proper system design or regulatory compli-
ance. Since it is the equipment manufacturer's respon-
sibility to have their equipment properly designed to
conform to all relevant regulations, designers using
LITELINK are advised to carefully verify that their end-
product design complies with all applicable safety,
EMC, and other relevant standards and regulations.
Semiconductor components are not rated to withstand
electrical overstress or electro-static discharges result-
ing from inadequate protection measures at the board
or system level.
Line Impedance Model
TBR-21
Australian
Ra
Rb
750
270
820
220
C
150 nF
120 nF
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相關代理商/技術參數(shù) |
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| CPC5620 | 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:LITELINK III Phone Line Interface IC (DAA) |
| CPC5620_1 | 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:LITELINK? III Phone Line Interface IC (DAA) |
| CPC5620A | 功能描述:固態(tài)繼電器-PCB安裝 LITELINK III, Half-wave Ring Detect RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負載電壓額定值:40 V 負載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設備:MOSFET 封裝 / 箱體:USOP-4 安裝風格:SMD/SMT |
| CPC5620ATR | 功能描述:固態(tài)繼電器-PCB安裝 LITELINK III, Half-wave Ring Detect, T/R RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負載電壓額定值:40 V 負載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設備:MOSFET 封裝 / 箱體:USOP-4 安裝風格:SMD/SMT |
| CPC5621 | 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:LITELINK? III Phone Line Interface IC (DAA) |
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