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參數(shù)資料
| 型號(hào)： | DS21Q55DK |
| 英文描述： | Quad T1/E1/J1 Transceiver Design Kit Daughter Card |
| 中文描述： | 四路T1/E1/J1收發(fā)器開(kāi)發(fā)板子卡 |
| 文件頁(yè)數(shù)： | 66/99頁(yè) |
| 文件大小： | 325K |
| 代理商： | DS21Q55DK |
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DS21Q50
Page 66 of 99
19. LINE INTERFACE UNIT
The line interface unit in the DS21Q50 contains three sections; (1) the receiver which handles clock and data
recovery, (2) the transmitter which waveshapes and drives the E1 line, and (3) the jitter attenuator. The Line
Interface Control Register (LICR) which is described below controls each of these three sections.
Register Name:
LICR
Register Description:
LINE INTERFACE CONTROL REGISTER
Register Address:
17 Hex
Bit #
7
6
5
4
SYM
L2
L1
L0
EGL
JAS
SYMBOL
BIT NAME AND DESCRIPTION
L2
7
Line Build Out Select Bit 2.
Sets the transmitter build out. See Table
19-1.
L1
6
Line Build Out Select Bit 1.
Sets the transmitter build out. See Table
19-1.
L0
5
Line Build Out Select Bit 0.
Sets the transmitter build out. See Table
19-1.
EGL
4
Receive Equalizer Gain Limit.
0 = –12 dB
1 = –43 dB
JAS
3
Jitter Attenuator Select.
0 = place the jitter attenuator on the receive side
1 = place the jitter attenuator on the transmit side
JABDS
2
Jitter Attenuator Buffer Depth Select.
0 = 128 bits
1 = 32 bits (use for delay sensitive applications)
DJA
1
Disable Jitter Attenuator.
0 = jitter attenuator enabled
1 = jitter attenuator disabled
TPD
0
Transmit Power Down.
0 = powers down the transmitter and 3-states the TTIP and TRING
pins
1 = normal transmitter operation
3
2
1
0
JABDS
DJA
TPD
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS21Q55 | Quad T1/E1/J1 Transceiver |
| DS21Q55N | Quad T1/E1/J1 Transceiver |
| DS21S07A | SCSI Terminator |
| DS21S07AE | Terminator |
| DS21S07AS | Terminator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q55N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Quad T1/E1/J1 Transceiver |
| DS21Q58 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:E1 Quad Transceiver |
| DS21Q58L | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q58L+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q58LN | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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