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參數(shù)資料
| 型號： | SP526 |
| 英文描述： | WAN Multi-Mode Serial Transceiver |
| 中文描述： | 萬多模式串行收發(fā)器 |
| 文件頁數(shù)： | 15/23頁 |
| 文件大?。?/td> | 141K |
| 代理商： | SP526 |
15
Rev: B Date:7/7/04
SP526 Multi–Mode Serial Transceiver
Copyright 2004 Sipex Corporation
THEORY OF OPERATION
The
SP526
device is made up of 1) the drivers,
2) the receivers, and 3) a charge pump.
Drivers
The
SP526
has four enhanced independent
drivers. Control for the mode selection is done
via a two–bit control word into DP0 and DP1.
The drivers are prearranged such that for each
mode of operation, the relative position and
functionality of the drivers are set up to
accommodate the selected interface mode. As
the mode of the drivers is changed, the electrical
characteristics will change to support the
required signal levels. The mode of each driver
in the different interface modes that can be
selected is shown in
Table 1.
There are four basic types of driver circuits —
RS-232 (V.28), RS-423 (V.10), RS-422 (V.11),
and RS-485.
The RS-232 (V.28) drivers output single–ended
signals with a minimum of
±
5V (with 3K
&
2500pF loading), and can operate to at least
120Kbps. Since the
SP526
uses a charge pump
to generate the RS-232 output rails, the driver
outputs will never exceed
±
10V.
The RS-423 (V.10) drivers are also single–
ended signals which produce open circuit V
and V
measurements of
±
4.0V to
±
6.0V.
When terminated with a 450
load to ground,
the driver output will not deviate more than 10%
of the open circuit value. This is in compliance
FEATURES
The
SP526
contains highly integrated serial
transceivers that offer programmability between
interface modes through software control. The
SP526
offers the hardware interface modes for
RS-232 (V.28), RS-423 (V.10), RS-422 (V.11),
and RS-485. The interface mode selection is
done via two control pins.
The
SP526
has four drivers, four receivers, and
an on-board charge pump that is ideally suited
for low-cost wide area network connectivity
and other multi-protocol applications. Based on
our multi-mode
SP500
family,
Sipex
has
allocated specific transceiver cells, or "building
blocks," from this product series and created the
SP526
.
Sipex's
"building blocks" concept
allows these small transceiver cells to be
packaged to offer a simple low-cost solution to
networking applications that need only 4
interface modes. For example, an 8-channel
applications requiring eight serial transceivers
can be achieved implementing two
SP526
devices. The
SP526
can be implemented in
series with other devices in our
SP500
family.
A 9-channel network application can be achieved
implementing the
SP505
which contains seven
transceivers in conjunction with the
SP526
.
1
D
0
D
S
R
E
V
I
R
D
S
R
E
V
I
E
C
E
R
1
T
2
T
3
T
4
T
1
R
2
R
3
R
4
R
0
0
e
d
o
M
e
S
-
T
n
s
p
O
x
R
d
n
a
x
T
-
N
W
O
D
T
U
H
S
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
8
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
Table 1. SP526 Driver and Receiver Mode Selection with the Control Lines D1 and D0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP526CF | WAN Multi-Mode Serial Transceiver |
| SP5301 | Universal Serial Bus Transceiver |
| SP5301CN | Universal Serial Bus Transceiver |
| SP5301CY | Universal Serial Bus Transceiver |
| SP6120 | Fixed Frequency, Voltage Mode, Synchronous PWM Controller(固定頻率，電壓模式同步PWM（脈寬調(diào)制控制器）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP526_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:WAN Multi-Mode Serial Transceiver |
| SP526A | 制造商:Black Box Corporation 功能描述:T-1 RJ45 PROTECTOR, RJ-45 |
| SP526A-W1 | 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR SP526A |
| SP526A-W3 | 制造商:Black Box Corporation 功能描述:3 YEAR WARRANTY FOR SP526A |
| SP526CF | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:WAN Multi-Mode Serial Transceiver |
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