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参数资料
| 型号： | LXT350PE |
| 英文描述： | PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|LDCC|28PIN|PLASTIC |
| 中文描述： | 的PCM收发器|单|优税PCM-30/E-1 |的CMOS | LDCC | 28脚|塑料 |
| 文件页数： | 33/50页 |
| 文件大小： | 1197K |
| 代理商： | LXT350PE |
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T1/E1 Short Haul Transceiver with Crystal-less Jitter Attenuation
—
LXT350
Datasheet
33
4.0
Application Information
4.1
Transmit Return Loss
Table 17
shows the specification for transmit return loss in E1 applications. The G.703/CH PTT
specification is a Swiss Telecommunications Ministry specification.
Table 18
and
Table 19
show the transmit return loss values for E1 and T1 applications.
4.2
Transformer Data
Specifications for transformers are listed in
Table 20
. A list of transformers recommended for use
with the LXT350 are specified in
Table 21
.
4.3
Application Circuits
Figure 12
and
Figure 13
show typical LXT350 applications for Hardware and Host modes of
operation.
4.4
Line Protection
On the receive side, 1 k
series resistors protect the receiver against current surges coupled into
the device. Due to the high receiver impedance (40 k
typical) the resistors do not affect the
receiver sensitivity. On the transmit side, Schottky diodes D1-D4 protect the output driver. While
not mandatory for normal operation, these protection elements are strongly recommended to
improve the design robustness.
Table 17. E1 Transmit Return Loss Requirements
Frequency Band
Return Loss
ETS 300 166
G.703/CH PTT
51-102 kHz
6 dB
8 dB
102-2048 kHz
8 dB
14 dB
2048 - 3072 kHz
8 dB
10 dB
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| LXT361PE | Telecommunication IC |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LXT350QE | 制造商:LEVEL1 功能描述: |
| LXT351 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:T1/E1 Short Haul Transceiver with Crystal-less Jitter Attenuation |
| LXT351PE | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|LDCC|28PIN|PLASTIC |
| LXT351QE | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|QFP|44PIN|PLASTIC |
| LXT360 | 制造商:LVL1 制造商全称:LVL1 功能描述:Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications |
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