- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9772 > MXL1535EEWI+T (Maxim Integrated Products)IC TXRX RS485/422 28-SOIC PDF資料下載
參數(shù)資料
| 型號(hào)： | MXL1535EEWI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 16/26頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/422 28-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 3 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC W |
| 包裝： | 帶卷 (TR) |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)
+3V to +5V, 2500VRMS Isolated RS-485/RS-422
Transceivers with ±15kV ESD Protection
Machine Model
The Machine Model for ESD tests all pins using a
200pF storage capacitor and zero discharge resis-
tance. Its objective is to simulate the stress caused by
contact that occurs with handling and assembly during
manufacturing. All pins require this protection during
manufacturing, not just inputs and outputs. Therefore,
after PC board assembly, the Machine Model is less
relevant to I/O ports.
Skew
The self-oscillation circuit shown in Figure 5 is an excel-
lent way to get an approximate measure of the speed
of the MAX3535E/MXL1535E. An oscillation frequency
of 250kHz in this configuration implies a data rate of at
least 500kbps for the receiver and transmitter com-
bined. In practice, data can usually be sent and
received at a considerably higher data rate, normally
limited by the allowable jitter and data skew. If the sys-
tem can tolerate a 25% data skew, (the difference
between tPLH1 and tPHL1), the 285ns maximum jitter
specification implies a data rate of 877kbps. Lower
data rates result in less distortion and jitter (Figure 16).
Higher rates are possible but with more distortion and
jitter. The data rate should always be limited below
1.75Mbps for both receiver and driver to avoid interfer-
ence with the internal barrier communication.
Layout Considerations
The MAX3535E/MXL1535E pin configurations enable
optimal PC board layout by minimizing interconnection
lengths and crossovers:
For maximum isolation, the isolation barrier should not
be breached except by the MAX3535E/MXL1535E and
the transformer. Connections and components from
one side of the barrier should not be located near those
of the other side of barrier.
A shield trace connected to the ground on each side of
the barrier can help intercept capacitive currents that
might otherwise couple into the DI and SLO inputs. In a
double-sided or multilayer board, these shield traces
should be present on all conductor layers.
Try to maximize the width of the isolation barrier
wherever possible. A clear space of at least 0.25in
between GND1 and GND2 is recommended.
IP 100%
90%
36.8%
tRL
TIME
tDL
CURRENT WAVEFORM
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
Ir
10%
0
AMPERES
Figure 15. Human Body Current Waveform
0
10
5
20
15
30
25
35
45
40
50
0
500 750
250
1000 1250 1500 1750 2000
DATA SKEW vs. DATA RATE
DATA RATE (kbps)
DATA
SKEW
(%)
TYP SKEW
MAX SKEW
Figure 16. Data Skew vs. Data Rate Graph
MAX3535E/MXL1535E
Maxim Integrated
23
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-26N-IU-F1 | CONVERTER MOD DC/DC 18.5V 200W |
| MAX251ESD+T | IC RS-232 DRVR RX 5V 14-SOIC |
| VE-26L-IU-F4 | CONVERTER MOD DC/DC 28V 200W |
| MAX250ESD+T | IC RS-232 DRVR RX 5V 14-SOIC |
| VE-26L-IU-F3 | CONVERTER MOD DC/DC 28V 200W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MXL1543 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Multiprotocol, 3Tx/3Rx, Software-Selectable Clock/Data Transceivers |
| MXL1543B | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Multiprotocol, 3Tx/3Rx, Software- Selectable Clock/Data Transceivers |
| MXL1543BCAI | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MXL1543BCAI+ | 功能描述:接口 - 專用 5V Multiptcl 3Tx/3Rx Clock/Data Tcvr RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MXL1543BCAI+T | 功能描述:接口 - 專用 5V Multiptcl 3Tx/3Rx Clock/Data Tcvr RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。