參數(shù)資料
型號(hào)： DS2154L
英文描述： Enhanced E1 Single Chip Transceiver
中文描述： 增強(qiáng)素E1單芯片收發(fā)器
文件頁(yè)數(shù)： 62/87頁(yè)
文件大?。?/td> 1106K
代理商： DS2154L
DS2154
62 of 87
12.0 LINE INTERFACE FUNCTIONS
The line interface function in the DS2154 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. Each of these three sections is controlled by the Line Interface Control Register (LICR) which
is described below.
LICR: LINE INTERFACE CONTROL REGISTER
(Address=18 Hex)
(MSB) (LSB)
L2
L1
L0
EGL
JAS
JABDS
DJA
TPD
LICR
SYMBOL
POSITION
NAME AND DESCRIPTION
L2
LICR.7
Line Build Out Bit 2.
Transmit waveshape setting; see Table
12-2.
L1
LICR.6
Line Build Out Bit 1.
Transmit waveshape setting; see Table
12-2.
L0
LICR.5
Line Build Out Bit 0.
Transmit waveshape setting; see Table
12-2.
EGL
LICR.4
Receive Equalizer Gain Limit.
0=-12 dB
1=-43 dB
JAS
LICR.3
Jitter Attenuator Select.
0=place the jitter attenuator on the receive side
1=place the jitter attenuator on the transmit side
JABDS
LICR.2
Jitter Attenuator Buffer Depth Select
0=128-bits
1=32-bits (use for delay sensitive applications)
DJA
LICR.1
Disable Jitter Attenuator.
0=jitter attenuator enabled
1=jitter attenuator disabled
TPD
LICR.0
Transmit Power Down.
0=normal transmitter operation
1=powers down the transmitter and 3-states the TTIP and
TRING pins
12.1 RECEIVE CLOCK AND DATA RECOVERY
The DS2154 contains a digital clock recovery system. See the DS2154 Block Diagram in Section 1 and
Figure 12-1 for more details. The DS2154 couples to the receive E1 shielded twisted pair or COAX via a
1:1 transformer. See Table 12-3 for transformer details. The 2.048 MHz clock attached at the MCLK pin
is internally multiplied by 16 via an internal PLL and fed to the clock recovery system. The clock
recovery system uses the clock from the PLL circuit to form a 16 times oversampler which is used to
相關(guān)PDF資料
PDF描述
DS2154LN Enhanced E1 Single Chip Transceiver
DS2154 WSD 151 SOLDERING STATION 230V UKWSD 151 SOLDERING STATION 230V UK; Frequency, supply max:60Hz; Frequency, supply min:50Hz; Height:101mm; Length:166mm; Power, input:150W; Temperature range:50(degree C) - 550(degree C); Voltage,
DS2155 T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface
DS2156 T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface
DS2156L T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2154L+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced 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
DS2154LA2 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
DS2154LA2+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced 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
DS2154L-C01 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS2154LD1 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced 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
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