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參數(shù)資料
| 型號： | XRT83SL38IB-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 30/88頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU SH T1/E1/J1 OCTAL 225BGA |
| 標準包裝： | 84 |
| 類型： | 線路接口裝置（LIU） |
| 驅動器/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 |
| 供應商設備封裝： | 225-BGA（19x19） |
| 包裝： | 托盤 |
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XRT83SL38
34
OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.2
TRANSMITTER (CHANNELS 0 - 7)
TRANSMIT TERMINATION MODE
In Hardware mode, TXTSEL (Pin 84) can be tied “High” to select internal termination mode for all transmit
channels or tied “Low” for external termination. Individual channel control can be done only in Host mode. In
Host mode, bit 6 in the appropriate register for a given channel is set “High” to select the internal termination
mode for that specific transmit channel, see Table 20, “Microprocessor Register #1, Bit Description,” on
For internal termination, the transformer turns ratio is always 1:2. In internal mode, no external resistors are
used. An external capacitor of 0.68
μF is used for proper operation of the internal termination circuitry, see
EXTERNAL TRANSMIT TERMINATION MODE
By default the XRT83SL38 is set for external termination mode at power up or at Hardware reset.
When external transmit termination mode is selected, the internal termination circuitry is disabled. The value of
the external resistors is chosen for a specific application according to the turns ratio selected by TRATIO (Pin
127) in Hardware mode or bit 0 in the appropriate register for a specific channel in Host mode, see Table 10
and Table 22, “Microprocessor Register #3, Bit Description,” on page 56. Figure 11 is a simplified block
FIGURE 12. SIMPLIFIED DIAGRAM FOR E1 IN EXTERNAL TERMINATION MODE (RXTSEL= 0)
TABLE 8: TRANSMIT TERMINATION CONTROL
TXTSEL
TX TERMINATION
TX TRANSFORMER RATIO
0
EXTERNAL
1:2.45
1
INTERNAL
1:2
TABLE 9: TERMINATION SELECT CONTROL
TERSEL1
TERSEL0
TERMINATION
0
100
Ω
0
1
110
Ω
1
0
75
Ω
1
120
Ω
9. 1
Ω
9. 1
Ω
TTIP
TR I N G
RT I P
RR I N G
75
Ω
XR T8 3SL3 8 LI U
75
Ω
75
Ω
1:2.45
1: 1
相關PDF資料 |
PDF描述 |
|---|---|
| XRT83VL38IB-F | IC LIU SH T1/E1/J1 OCTAL 225BGA |
| XRT83VSH28IB | IC LIU SH E1 OCTAL 225BGA |
| XRT83VSH314IB-F | IC LIU SH T1/E1/J1 14CH 304TBGA |
| XRT83VSH316IB | IC LIU SH T1/E1/J1 16CH 316STBGA |
| XRT83VSH38IB | IC LIU SH T1/E1/J1 8CH 225BGA |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XRT83SL38IV | 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83VL38 | 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83VL38ES | 功能描述:界面開發(fā)工具 Eval System for XRT83L38 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XRT83VL38IB | 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83VL38IB-F | 功能描述:外圍驅動器與原件 - PCI Low Power High Perf 8-Chan LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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