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參數(shù)資料
| 型號： | XRT75L04 |
| 廠商： | Exar Corporation |
| 英文描述： | FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER |
| 中文描述： | 四通道E3/DS3/STS-1線路接口單元，其抖動 |
| 文件頁數(shù)： | 32/57頁 |
| 文件大小： | 345K |
| 代理商： | XRT75L04 |
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XRT75L04
30
FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REV. 1.0.4
Case 2:
MTIP_1 connected to TTIP_1
MRING_1 connected to TRING_1
TxMON_1 (bit) = 1
This has the same effect as in Case 1. It is redundant to use the MTIP_1/MRING_1 pins in this case.
Case 3:
MTIP_1 not connected to TTIP_1
MRING_1 not connected to TRING_1
TxMON_1 (bit) = 1
When no transitions on the TTIP_1/TRING_1 are detected for 128 ± 32 TxClk_1 periods, the DMO_1 pin will
toggle “High”. The DMO_1 and the DMOIS_1 bits also will be set in the control register. When the transitions
are detected, the DMO_1 pin will toggle back to normal state. The DMO_1 bit also will be cleared. However,
the DMOIS_1 bit will remain set until read. If the DMOIE_1 bit has been set, an interrupt will be generated.
Please note that the MTIP_1/MRING_1 pins cannot be used to monitor any other adjacent channels.
Case 4:
MTIP_m not connected to TTIP_m +n where m = 0,1...3 and n = 0,1...3
MRING_m not connected to TRING_m +n where m = 0,1...3 and n = 0,1...3
TxMON_n (bit) = 0
In this case, with external connection, any of the MTIP/MRING can be connected to any of the adjacent
channel to be monitored.
Please note that if TxMON_n bit is set, then monitoring will be done for that channel n. By toggling the
TxMON_n bit from 0 to 1, the monitoring can be switched between self-monitoring to monitoring any adajcent
channels.
N
OTE
:
The Drive Monitor Circuit is only for diagnostic purpose and does not have to be used to operate the transmitter.
4.5
Transmitter Section On/Off:
The transmitter section of each channel can either be turned on or off. To turn on the transmitter, set the input
pin TxON_n to “High” (in Hardware Mode) or write a “1” to the TxON_n control bits (in Host Mode) with
TxON_n pins tied “High”.
When the transmitter is turned off, TTIP_n and TRing_n are tri-stated.
N
OTES
:
1.
2.
This feature provides support for Redundancy.
If the XRT75L04 is configured in Host mode, to permit a system designed for redundancy to quickly shut-off the
defective line card and turn on the back-up line card, writing a “1” to the TxON_n control bits transfers the control
to TxON_n pins.
5.0
THE RECEIVER SECTION:
This section describes the detailed operation of the various blocks in the receiver. The receiver recovers the
TTL/CMOS level data from the incoming bipolar B3ZS or HDB3 encoded input pulses.
5.1
AGC/Equalizer:
The Adaptive Gain Control circuit amplifies the incoming analog signal and compensates for the various flat
losses and also for the loss at one-half symbol rate. The AGC has a dynamic range of 30 dB.
The Equalizer restores the integrity of the signal and compensates for the frequency dependent attenuation of
up to 900 feet of coaxial cable (1300 feet for E3). The Equalizer also boosts the high frequency content of the
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| XRT75L04IV | FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER |
| XRT75L06D | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| XRT75L06DIB | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| XRT75L06 | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75L06IB | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XRT75L04D | 制造商:EXAR 制造商全稱:EXAR 功能描述:FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| XRT75L04DES | 功能描述:時鐘合成器/抖動清除器 4CH T3/E3/STS1 LIU+DESYNCH 3.3V RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT75L04DIV | 功能描述:外圍驅動器與原件 - PCI 4 CHNL E3/DS3/STS 1 JITTER ATTENUATOR RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT75L04DIV-F | 功能描述:外圍驅動器與原件 - PCI 4-Ch DS3, E3, STS-1 RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT75L04DIVTR | 功能描述:時鐘合成器/抖動清除器 4 CHNL E3/DS3/STS 1 JITTER ATTENUATOR RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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