–VO D 3V 0V tPLH" />
參數(shù)資料
型號: LTC1690CMS8#TRPBF
廠商: Linear Technology
文件頁數(shù): 10/12頁
文件大小: 0K
描述: IC RCVR/DVR PAIR LOW PWR 8-MSOP
標準包裝: 2,500
類型: 驅(qū)動器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 帶卷 (TR)
7
LTC1690
SWITCHI G TI E WAVEFOR S
UW
W
–VO
D
3V
0V
tPLH
VO = V(A) – V(B)
VO
Z
Y
tSKEW
tr
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
1.5V
90%
10%
50%
tPHL
tf
1.5V
90%
10%
50%
VO
1/2 VO
1690 F04
Figure 4. Driver Propagation Delays
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
NOTE: tSKD = |tPHL – tPLH|
INPUT
OUTPUT
A – B
R
VOD2
–VOD2
5V
VOL
tPHL
0V
1.5V
tPLH
0V
1.5V
1690 F05
Figure 5. Receiver Propagation Delays
FUNCTION TABLES
UU
Driver
DZ
Y
101
010
Receiver
A – B
R
≥ –0.01V
1
≤ –0.20V
0
Inputs Open
1
Inputs Shorted
1
Note: Table valid with or without termination resistors.
1690 F01
Y
Z
R
VOD2
VOC
1690 F02
Y
Z
60
375
VOD3
VTST
–7V TO 12V
375
1690 F03
D
Y
Z
RDIFF
A
B
15pF
CL1
CL2
R
+
Figure 1. Driver
DC Test Load #1
Figure 2. Driver
DC Test Load #2
Figure 3. Driver/Receiver
Timing Test Load
TEST CIRCUITS
PIN FUNCTIONS
UU
U
VCC (Pin 1): Positive Supply. 4.75V < VCC < 5.25V.
R (Pin 2): Receiver Output. R is high if (A – B)
≥ –10mV
and low if (A – B)
≤ –200mV.
D (Pin 3): Driver Input. If D is high, Y is taken high and Z
is taken low. If D is low, Y is taken low and Z is taken high.
GND (Pin 4): Ground.
Y (Pin 5): Driver Output.
Z (Pin 6): Driver Output.
B (Pin 7): Receiver Input.
A (Pin 8): Receiver Input.
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LTC1690CS8#PBF 制造商:Linear Technology 功能描述:Differential Driver/Receiver IC