- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377798 > LXT351PE (INTEL CORP) PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|LDCC|28PIN|PLASTIC PDF資料下載
參數(shù)資料
| 型號： | LXT351PE |
| 廠商： | INTEL CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|LDCC|28PIN|PLASTIC |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 14/46頁 |
| 文件大?。?/td> | 1132K |
| 代理商： | LXT351PE |
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頁當(dāng)前第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
LXT351
—
T1/E1 Short Haul Transceiver with Crystal-less Jitter Attenuation
14
Datasheet
2.2.2
Transmit Monitoring
The transmitter includes a short circuit limiter that limits the current sourced into a low impedance
load. The limiter automatically resets when the load current drops below the limit. The current is
determined by the interface circuitry (total resistance on transmit side).
The Performance Status Register (PSR) flags open circuits in bit PSR.DFMO. A transition of
DFMO can provide an interrupt, and its transition sets bit TSR.DFMO = 1. Writing a 1 in bit
ICR.CDFMO clears the interrupt; leaving a 1 in the bit masks that interrupt.
2.2.3
Transmit Drivers
The transceiver transmits data as a 50% line code as shown in
Figure 3
. To reduce power
consumption, the line driver is active only during transmission of marks, and is disabled during
transmission of spaces. Biasing of the transmit DC level is on-chip.
2.2.4
Transmit Idle Mode
Transmit Idle mode allows multiple transceivers to be connected to a single line for redundant
applications. When TCLK is not present, Transmit Idle mode becomes active, and TTIP and
TRING change to the high impedance state. Remote or Dual Loopback, TAOS or any internal
transmit patterns temporarily disable the high impedance state.
2.2.5
Transmit Pulse Shape
As shown in
Table 8 on page 25
, the transmitted pulse shape is established by bits EC1 through
EC3 of Control Register #1 (CR1).
The transceiver produces DSX-1 pulses for short-haul T1 applications (settings from 0 dB to +6.0
dB of cable) or G.703 pulses for E1 applications. Shaped pulses are applied to the AMI line driver
for transmission onto the line at TTIP and TRING. Refer to the Test Specifications section for
pulse mask specifications.
Figure 3. 50% Duty Cycle Coding
1
0
1
Bit Cell
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LXT351QE | PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|QFP|44PIN|PLASTIC |
| LXT361QE | Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications |
| LXT360 | Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications |
| LXT361 | Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications |
| LXT360QE | CONNECTOR ACCESSORY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LXT351QE | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|QFP|44PIN|PLASTIC |
| LXT360 | 制造商:LVL1 制造商全稱:LVL1 功能描述:Integrated T1/E1 LH/SH Transceivers for DS1/DSX-1/CSU or NTU/ISDN PRI Applications |
| LXT360LE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|QFP|44PIN|PLASTIC |
| LXT360PE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|LDCC|28PIN|PLASTIC |
| LXT360QE | 制造商:Intel 功能描述: 制造商:LEVEL ONE 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。