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參數(shù)資料
| 型號： | DS21349Q+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 8/35頁 |
| 文件大小： | 0K |
| 描述： | IC LIU T1/J1 3.3V 28-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 類型： | 線路接口裝置（LIU） |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
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DS21349
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5. TRANSMITTER
5.1
Transmit Digital Data Interface
Data is clocked into the device at the TCLK rate. In bipolar mode, TPOS and TNEG are the data inputs;
in NRZ mode, TDATA is the data input. Input data can pass through either the jitter attenuator or the
B8ZS encoder or both. In software mode, setting ENCENB enables B8ZS encoding. In hardware mode,
floating the MODE1 pin enables B8ZS encoding. With B8ZS encoding enabled, the L0 through L3 inputs
determine the coding and is listed in Table 4-E. TCLK supplies input synchronization. See Section 12 for
the TCLK and MCLK timing requirements.
5.2
Transmit Monitoring
In software mode, the DFMO bit in the status register is set when an open circuit in the transmitter path is
detected. A transition on this bit can provide an interrupt, and a transition sets the DFMO bit in the
transition status register. Setting CDFMO in the interrupt mask register, leaving a 1 in that bit location
masks the interrupt.
5.3
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 high-impedance state. Remote loopback, dual loopback, TAIS, or detection of network loop-up
code in the receive direction temporarily disable the high-impedance state.
5.4
Transmit Pulse Shape
As shown in Table 4-E, line build-out control inputs (L0 through L3) determine the transmit pulse shape.
In software mode, these control inputs are located in control register 1; in hardware mode, these control
inputs are the L0 through L3 pins.
Shaped pulses meeting the various T1, DS1, and DSX-1 specifications are applied to the AMI line driver
for transmission onto the line at TTIP and TRING. The transceiver produces DSX-1 pulses for short-haul
T1 applications (settings from 0dB to 6dB of cable) and DS1 pulses for long-haul T1 applications
(settings from 0dB to -22.5dB). Refer to Table 4-E for pulse mask specifications.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21352 | 制造商:Maxim Integrated Products 功能描述: |
| DS21352DK | 功能描述:網(wǎng)絡(luò)開發(fā)工具 T1/J1 Single Chip Tranceiver Kit RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| DS21352G | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Single Chip Transceivers 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 |
| DS21352GN | 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 |
| DS21352L | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Single Chip Transceivers 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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