V
參數(shù)資料
型號: SP483ECP-L
廠商: Exar Corporation
文件頁數(shù): 8/12頁
文件大?。?/td> 0K
描述: IC TXRX RS485 LW EMI 8PDIP
標準包裝: 50
類型: 收發(fā)器
驅動器/接收器數(shù): 1/1
規(guī)程: RS485
電源電壓: 5V
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應商設備封裝: 8-PDIP
包裝: 管件
其它名稱: 1016-1163-5
5
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP483E_00_02092
PIN FUNCTION
TEST CIRCUITS
A
B
R
VOD
VOC
Figure 1. RS-485 Driver DC Test Load Circuit
C
L1
15pF
RO
A
B
A
B
DI
C
L2
R
DIFF
Figure 3. RS-485 Driver/Receiver Timing Test
500
CL
Output
Under
Test
S1
S2
VCC
Figure 4. Driver Timing Test Load #2 Circuit
Figure 2. Receiver Timing Test Load Circuit
1k
CRL
Receiver
Output
S1
S2
Test Point
VCC
Pin - RO - Receiver Output
Pin 2 - RE - Receiver Output Enable Active LOW
Pin 3 - DE - Driver Output Enable Active HIGH
Pin 4 - DI - Driver Input
Pin 5 - GND - Ground Connection
Pin 6 - A - Driver Output / Receiver input
Non-Inverting
Pin 7 - B - Driver Output / Receiver Input Inverting
Pin 8 - Vcc - Positive Supply 4.75V ≤ Vcc ≤ 5.25V
Figure 5. Driver Propagation Delays
+3V
0V
DRIVER INPUT
A
B
DRIVER
OUTPUT
VO+
DIFFERENTIAL
OUTPUT
VA –VB
0V
VO
1.5V
tPLH
tF
tR
tR ≤10ns; tF ≤10ns
VO 1/2VO
1/2VO
tPHL
t SKEW = |t DPLH- tDPHL|
tDPLH
tDPHL
f = 100kHz;
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