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參數(shù)資料
| 型號(hào)： | XRT4500 |
| 廠商： | Exar Corporation |
| 英文描述： | MULTIPROTOCOL SERIAL NETWORK INTERFACE IC |
| 中文描述： | 多協(xié)議串行網(wǎng)絡(luò)接口芯片 |
| 文件頁(yè)數(shù)： | 13/99頁(yè) |
| 文件大小： | 1384K |
| 代理商： | XRT4500 |
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XRT4500
MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
REV. 1.0.7
á
10
PIN DESCRIPTIONS (CONT.)
PIN
#
Signal
DTE
MODE
DCE
MODE
TYPE
FUNCTION
25
RX8I
RIA
RLA
I
Receiver 8 – Line Input Pin:
This input pin accepts either a V.10 or V.28 type signal from the
line. Receiver 8 will then convert this signal into a “CMOS” level
(digital) signal and output this signal to the Terminal Equipment
via the RX8D output pin (Pin 23). The exact function of this out-
put pin depends upon whether the XRT4500 device is operating
in the DTE or DCE mode.
DTE Mode
– The RI line signal
DCE Mode
– The RL line signal
Notes
:
1.
For some DTE applications, this input pin would accept
the “RI” (Ring Indicator) line signal (in either the V10 or
V28 format) form the DCE Terminal Equipment.
2. For some DCE applications, this input pin would accept the
“RL” (Remote Loop-back”) line signal (in either the V10 or
the V28 format) from the DTE Terminal Equipment.
26
VSS
-6V Power:
This supply voltage is internally generated by the
Switching Regulator Circuit within the XRT4500. The -6V is used
by receivers 4, 5, 6, 7 and 8. If a -6V supply is available, then the
external components can be eliminated.
27
TR7
LLA
LLA
I/0
Transceiver # 7 I/O Pins
The exact function of this pin depends upon whether the
XRT4500 is operating in the DCE or DTE Modes.
DTE Mode – Transmitter 7 –
Single Ended Data Output to Line
Transceiver 7 accepts a CMOS level signal via the “TX76D” input
pin (pin 28). This digital data is converted into either a V.10 or
V.28 electrical signal; which is then output (via this pin), on the
line to the Remote Terminal Equipment.
DCE Mode – Receiver 7 –
Single Ended Data Input from Line
This input pin accepts the line signal, from the Remote Terminal
Equipment, in a “single-ended” manner. This line signal is con-
verted into a CMOS level signal and is output (to the local Termi-
nal Equipment) via the “RX67D” output pin (Pin 32).
28
TX76D
D_LL
D_DCD
I
Digital Input –
Refer to Mode Control Tables, Table 3 & Table 4 .
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT4500CV | MULTIPROTOCOL SERIAL NETWORK INTERFACE IC |
| XRT56L85 | Low Power PCM Line Interface |
| XRT5794ES | Evaluation System |
| XRT5894ES | () |
| XRT5894 | Four-Channel E1 Line Interface (3.3V or 5.0V)(四通道E1 3.3V線接口單元) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT4500CV | 制造商:EXAR 制造商全稱:EXAR 功能描述:MULTIPROTOCOL SERIAL NETWORK INTERFACE IC |
| XR-T5600P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Repeater |
| XR-T56188CD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Transceiver |
| XR-T56188CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Transceiver |
| XR-T56188ID | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Transceiver |
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