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參數(shù)資料
| 型號(hào)： | XRT83VSH38IB |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 18/76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： | 3.14 V ~ 3.47 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(pán) |
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XRT83VSH38
22
REV. 1.1.0
8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
3.2
Clock and Data Recovery
The receive clock (RCLK) is recovered by the clock and data recovery circuitry. An internal PLL locks on the
incoming data stream and outputs a clock that’s in phase with the incoming signal. This allows for multi-
channel T1/E1/J1 signals to arrive from different timing sources and remain independent. In the absence of an
incoming signal, RCLK maintains its timing by using the internal master clock as its reference. The recovered
data can be updated on either edge of RCLK. By default, data is updated on the rising edge of RCLK. To
update data on the falling edge of RCLK, set RCLKE to "1" in the appropriate global register. Figure 8 is a
timing diagram of the receive data updated on the rising edge of RCLK. Figure 9 is a timing diagram of the
receive data updated on the falling edge of RCLK. The timing specifications are shown in Table 5.
FIGURE 8. RECEIVE DATA UPDATED ON THE RISING EDGE OF RCLK
FIGURE 9. RECEIVE DATA UPDATED ON THE FALLING EDGE OF RCLK
NOTE: VDD=3.3V ±5%, TA=25°C, Unless Otherwise Specified
3.2.1
Receive Sensitivity
TABLE 5: TIMING SPECIFICATIONS FOR RCLK/RPOS/RNEG
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
RCLK Duty Cycle
RCDU
45
50
55
%
Receive Data Setup Time
RSU
150
-
ns
Receive Data Hold Time
RHO
150
-
ns
RCLK to Data Delay
RDY
-
40
ns
RCLK Rise Time (10% to 90%)
with 25pF Loading
RCLKR
-
40
ns
RCLK Fall Time (90% to 10%)
with 25pF Loading
RCLKF
-
40
ns
RC L K
RP O S
or
RN E G
R DY
RC L K R
RC L K F
R OH
RCLK
RPOS
or
RNEG
RDY
RCLKF
RCLKR
ROH
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| XRT83VSH38IB-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8 Channel Short-Haul 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 |
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