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參數(shù)資料
| 型號(hào)： | DS3171N |
| 英文描述： | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| 中文描述： | 單/雙/三/四DS3/E3單芯片收發(fā)器 |
| 文件頁(yè)數(shù)： | 53/232頁(yè) |
| 文件大小： | 2133K |
| 代理商： | DS3171N |
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signal pins can be timed to a single clock reference without concern about having the clock source change during
loopbacks.
10.2.1.1.1 LIU Enabled, Loop Timing Enabled
In this mode, the receive LIU sources the clock for both the receive and transmit logic. The RCLKOn, TCLKOn and
TLCLKn clock output pins will be the same. The transmit or receive line payload signal pins can be timed to any of
these clock. The use of the RCLKOn pin as the timing source is suggested. If RCLKOn is used as the timing
source, be sure to set
PORT.CR3
.RFTS = 0 for output timing.
10.2.1.1.2 LIU Disabled, Loop Timing Enabled
In this mode, the RLCLKn pins are the source of the clock for both the receive and transmit logic. The RCLKOn,
TCLKOn and TLCLKn clock output pins will both be the same as the RLCLKn clock. The transmit or receive line
payload signals can be timed to any of these clock pins. The use of the RLCLKn pin as the timing source is
suggested. If RLCLKn is used as the timing source, be sure to set PORT.CR3.RFTS = 1 for input timing.
10.2.1.2 Loop Timing Disabled
When loop timing is disabled, the transmit clock source can be different than the receive clock source. The
loopback functions, LLB, PLB and DLB, will cause the clock sources to switch when they are activated. Care must
be taken when selecting the clock reference for the transmit and receive signals.
The most versatile clocking option has the receive line interface signals timed to RLCLKn, the transmit line
interface signals timed to TLCLKn, the receive framer signals timed to RCLKOn, and the transmit framer signals
timed to TCLKOn. This clocking arrangement works in all modes.
When LLB is enabled, the clock on the TLCLKn pins will switch to the clock from the RLCLKn pins or RX LIU. It is
recommended that the transmit line interface signals be timed to the TLCLKn pins. If TLCLKn is used as the timing
source, be sure to set
PORT.CR3
.TLTS = 0 for output timing.
When PLB is enabled, the TCLKIn pin will not be used and the internal transmit clock is switched to the internal
receive clock. The clock on the TCLKOn pins will switch to the clock from the RLCLKn pins or RX LIU. The framer
input signals will be ignored while PLB is enabled. It is recommended that the transmit line interface signals be
timed to the TCLKOn pins.
When DLB is enabled, the internal receive clock is switched to the internal transmit clock which is sourced from the
TCLKIn pins or one of the CLAD clocks, and the clock on the RLCLKn pins or from the RX LIU will not be used.
The clock on the RCLKOn pins will switch to the clock on the TCLKIn pins or one of the CLAD clocks. The receive
line signals from the RX LIU or line interface pins will be ignored. It is recommended that the receive framer pins be
timed to the RCLKOn pins. If TCLKOn is used as the timing source, be sure to set
PORT.CR3
.TFTS = 0 for output
timing.
When both DLB and LLB are enabled, the TLCLKn clock pins are connected to either the RX LIU recovered clock
or the RLCLKn clock pins, and the RCLKOn clock pins will be connected to the TCLKIn clock pins or one of the
CLAD clocks. It is recommended that the transmit line signals be timed to the TLCLKn pins, the receive line
interface signals be timed to the RLCLKn pins, the receive framer signals be timed to the RCLKOn pins, and the
transmit framer signals be timed to the TCLKOn pins.
10.2.1.2.1 LIU Enabled - CLAD Timing Disabled – no LB
In this mode, the receive LIU sources the clock for the receive logic and the TCLKIn pins source the clock for the
transmit logic.
10.2.1.2.2 LIU Enabled - CLAD Timing Enabled – no LB
In this mode, the receive LIU sources the clock for the receive logic and one of the CLAD clocks sources the clock
for the transmit logic.
10.2.1.2.3 LIU Disabled - CLAD Timing Disabled – no LB
In this mode, the RLCLKn pins source the clock for the receive logic and the TCLKIn pins source the clock for the
transmit logic.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS3172 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3172N | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3173 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3173N | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3174 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS3171N+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Single DS3/E3 Single Chip 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 |
| DS3172 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Dual DS3/E3 Single Chip 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 |
| DS3172+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Dual DS3/E3 Single Chip 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 |
| DS3172N | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Dual DS3/E3 Single Chip 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 |
| DS3172N+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Dual DS3/E3 Single Chip 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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