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參數(shù)資料
| 型號(hào)： | XRT83SH38IB-F |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 29/78頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU SH T1/E1/J1 8CH 225BGA |
| 標(biāo)準(zhǔn)包裝： | 84 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動(dòng)器/接收器數(shù)： | 8/8 |
| 規(guī)程： | T1，E1，J1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 225-BGA |
| 供應(yīng)商設(shè)備封裝： | 225-BGA（19x19） |
| 包裝： | 托盤 |
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XRT83SH38
32
REV. 1.0.7
8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
4.5.4
Arbitrary Pulse Generator For T1 and E1
The arbitrary pulse generator divides the pulse into eight individual segments. Each segment is set by a 7-Bit
binary word by programming the appropriate channel register. This allows the system designer to set the
overshoot, amplitude, and undershoot for a unique line build out. The MSB (bit 7) is a sign-bit. If the sign-bit is
set to "0", the segment will move in a positive direction relative to a flat line (zero) condition. If this sign-bit is
set to "1", the segment will move in a negative direction relative to a flat line condition. The resolution of the
DAC is typically 60mV per LSB. Thus, writing 7-bit = 1111111 will clamp the output at either voltage rail
corresponding to a maximum amplitude. A pulse with numbered segments is shown in Figure 21.
FIGURE 21. ARBITRARY PULSE SEGMENT ASSIGNMENT
NOTE: By default, the arbitrary segments are programmed to 0x00h. The transmitter outputs will result in an all zero
pattern to the line interface.
4.6
DMO (Digital Monitor Output)
The driver monitor circuit is used to detect transmit driver failures by monitoring the activities at TTIP/TRING
outputs. Driver failure may be caused by a short circuit in the primary transformer or system problems at the
transmit inputs. If the transmitter of a channel has no output for more than 128 clock cycles, DMO goes "High"
until a valid transmit pulse is detected. If the DMO interrupt is enabled, the change in status of DMO will cause
the interrupt pin to go "Low". Once the status register is read, the interrupt pin will return "High" and the status
register will be reset (RUR).
1
2
3
4
5
6
7
8
Segment
Register
1
0xn8
2
0xn9
3
0xna
4
0xnb
5
0xnc
6
0xnd
7
0xne
8
0xnf
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相關(guān)代理商/技術(shù)參數(shù) |
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| XRT83SL216 | 制造商:EXAR 制造商全稱:EXAR 功能描述:16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SL216_06 | 制造商:EXAR 制造商全稱:EXAR 功能描述:16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SL216ES | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 16 CH E1 LIU SH RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT83SL216IB | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| XRT83SL216IB-F | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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