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| 型號(hào)： | XR-T3590ES |
| 廠(chǎng)商： | Exar Corporation |
| 英文描述： | () |
| 中文描述： | （） |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 167K |
| 代理商： | XR-T3590ES |
XR-T3590ES
...the analog plus company
TM
XR-T3590
Evaluation System
Rev. 1.00
5
August 1996-4
OVERVIEW
This unit is a 4.5 by 5.0 inch circuit board that simplifies the
evaluation of the XR-T3590 Single Chip V.35 Transceiver
in a CCITT V.35 application. Its features include dip
switch selection of all chip options, and provisions for
applying the ground potential offset voltage specified by
the V.35 test procedure to the receiver inputs. Figure 1.,
Figure 2.and Table 2.show the demo board component
layout, circuit diagram, and list of components
respectively.
POWER REQUIREMENTS
Supply voltages of +5.0 Volts
Volts
5% for V
SS
are applied to the board through
banana jacks. Both power sources should be
well-regulated, and each be capable of supplying 250 mA
minimum. During normal operation jumper E-1 must be
installed, and nothing is connected to the banana jack
labeled OFFSET.
5%V for V
DD
and -5.0
DIGITAL INPUT DIGITAL OUTPUT CONNECTIONS
The TTL compatible transmitter inputs are the BNC
connectors mounted on the left side of the board that are
labeled TX1IN, TX2IN and TX3IN. Provisions are
included for installing input termination resistors R1, R2,
and R3 if required. These resistors (50 or 75
) are
needed only if a pulse generator with a low impedance
output and a fast rise time is used as a test signal source.
They are not required for TTL signals applied to the board
through short cables.
Likewise, the TTL compatible receiver outputs are the
BNC connectors labeled RX1OUT, RX2OUT, and
RX3OUT.
TRANSMITTER LINE OUTPUT AND RECEIVER LINE
INPUT CONNECTIONS
The line connections are made to the six RJ-11
connectors or to the corresponding test point pairs that
are located on the right side of the board. The RJ-11s are
for connecting twisted pair cables, and the test points
provide a convenient means for viewing the output and
input signals differentially on an oscilloscope. From top to
bottom, the three transmitter outputs are labeled
TX1OUT, TX2OUT, and TX3OUT, and the three receiver
inputs are labeled RX1IN, RX2IN, and RX3IN. Note that
connectors are wired so that the “A” and “B” XR-T3588
output pins and the “A” and “B” XR-T3589 input pins go to
the same pin numbers on the RJ-11 connectors.
Therefore, a test cable must be wired in the same manner
to prevent a data inversion between the transmitter digital
input and the receiver digital output. (Telephone cables
typically contain a “twist” between modular connectors,
and will therefore give a data inversion.)
TRANSMITTER AND RECEIVER FUNCTION
SELECTION
The DIP switch located in the center of the board selects
the logic state applied to the XR-T3590 function control
pins SL2, SL1, and SL0. Table 1.shows the function for
each switch setting. Note that when a DIP switch section
is “OFF,” a logic 1 is applied to the corresponding IC pin.
DIP Switch Setting
SEL1
ON
ON
OFF
OFF
ON
ON
OFF
OFF
Drivers
On
-
-
1,2,3
1,2,3
1,2
1,2
1,2,3
1,2,3
Receivers
On
-
1,2,3
1,2
1,2
1,2,3
1,2,3
1,2,3
-
Description
SEL2
ON
ON
ON
ON
OFF
OFF
OFF
OFF
SEL0
ON
OFF
ON
OFF
ON
OFF
ON
OFF
All Off
All Receivers Off
DCE Mode
DCE Mode With Mirrored Loopback
DTE Mode
DTE Mode With Mirrored Loopback
All On
All Drivers On
Table 1. XR-T3590 Function Selection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR-T3590ID | SINGLE CHIP V.35 TRANSCEIVER |
| XR-T3590IP | SINGLE CHIP V.35 TRANSCEIVER |
| XR-T3590 | Single Chip V.35 Transceiver (單片V.35收發(fā)器（由三個(gè)接收器和發(fā)送器組成）) |
| XR-T3591A | Single Chip V.35 Transceiver (單片V.35收發(fā)器（由三個(gè)接收器和發(fā)送器組成）) |
| XR-T3591 | CAP 390UF 63V ELECT FC RADIAL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT3590ID | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Single Chip V.35 Transceiver(689.93 k ) |
| XR-T3590ID | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:SINGLE CHIP V.35 TRANSCEIVER |
| XRT3590ID-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI V.35 Transceiver 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 |
| XRT3590IDTR-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI V.35 Transceiver 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 |
| XRT3590IP | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述: |
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