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参数资料
| 型号： | DS3150TN |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PDIP48 |
| 封装： | TQFP-48 |
| 文件页数： | 18/22页 |
| 文件大小： | 228K |
| 代理商： | DS3150TN |
DS3150
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TRANSMITTER
Via the ZCSE* input, the device is configured to accept either bipolar data or NRZ data to be input to the
transmitter. When the ZCSE* input is tied high, bipolar data must be applied at the TPOS and TNEG
inputs. In this mode, the device will not perform B3ZS/HDB3-encoding on the outgoing data stream.
When the ZCSE* input is tied low, an NRZ data stream must be applied at the TPOS input (TNEG is
ignored). In this mode, the device will perform B3ZS/HDB3-encoding on the outgoing data stream.
The clock applied at the TCLK input is used to transmit data onto the T3/E3/STS-1 line. Hence TCLK
must be of transmission quality (i.e. accurate to
±20 ppm). The duty cycle of TCLK is not a key
parameter as long as the clock high and low times listed in Section 3 are met.
The DS3150 also has the ability to generate a number of different patterns, including an unframed all
ones pattern (which is also the E3 AIS signal), a 101010… pattern, or a T3 Alarm Indication Signal
(AIS). See Figure 1E for a description of the T3 AIS. The TDS0 and TDS1 inputs are used to select
these onboard patterns. See Tables 2A and 2B.
The DS3150 interfaces to the transmit T3/E3/STS-1 coax cable via a 1:2 step up transformer. See Figure
1B. It will drive the 75 ohm cable and create the proper waveforms required for interfacing to
T3/E3/STS-1 lines. In T3 and STS-1 modes, the LBO (Line Build-Out) pin controls waveform shape.
For cable lengths less than 225 feet, LBO should be pulled high. For 225 feet or more of cable, LBO
should be pulled low. Tables 1C through 1G and Figure 1D detail the waveform template specifications
and testing parameters.
The transmitter can be disabled and the TX+ and TX– outputs tri-stated via the TTS* input. See
Table 2A for details.
The transmit driver monitor constantly checks the analog signal output at TX+ and TX–. If the output
fails, then the DM* output will be pulled low. When the transmitter is disabled (TTS* = 0) the driver
monitor is also disabled.
T3 TRANSMIT WAVEFORM TEMPLATE Table 1C
Time Axis Range
Normalized Amplitude Equations
Upper Curve
-0.85
≤ T ≤ -0.68
0.03
-0.68
≤ T ≤ 0.36
0.5 {1 + sin[(
π/2)(1 + T/0.34)]} + 0.03
0.36
≤ T ≤ 1.4
0.08 + 0.407e-1.84(T - 0.36)
Lower Curve
-0.85
≤ T ≤ -0.36
-0.03
-0.36
≤ T ≤ 0.36
0.5 {1 + sin[(
π/2)(1 + T/0.18)]} - 0.03
0.36
≤ T ≤ 1.4
-0.03
Governing Specifications: ANSI T1.102-1993 and Bellcore GR-499.
相关PDF资料 |
PDF描述 |
|---|---|
| DS3150T | DATACOM, PCM TRANSCEIVER, PQFP48 |
| DS5000FP-12 | 8-BIT, 12 MHz, MICROCONTROLLER, PQFP80 |
| DS5000FP-16 | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80 |
| DS5000T-32-16 | 8-BIT, 16 MHz, MICROCONTROLLER, DIP40 |
| DS5000T-8-16 | 8-BIT, 16 MHz, MICROCONTROLLER, DMA40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3150TN+ | 功能描述:网络控制器与处理器 IC 3.3V DS3/E3/STS-1 Line Interface Unit RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS3150TN1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS3150TNC1 | 功能描述:网络控制器与处理器 IC 3.3V DS3/E3/STS-1 Line Interface Unit RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS3150TNC1+ | 功能描述:网络控制器与处理器 IC 3.3V DS3/E3/STS-1 Line Interface Unit RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS3151 | 功能描述:网络控制器与处理器 IC Single DS3/E3/STS-1 Line Interface Unit RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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