參數(shù)資料
型號(hào): LTC1544CG#PBF
廠商: Linear Technology
文件頁(yè)數(shù): 4/20頁(yè)
文件大小: 0K
描述: IC TXRX SOFTWARE SELECTBL 28SSOP
標(biāo)準(zhǔn)包裝: 47
類(lèi)型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 4/4
電源電壓: 4.75 V ~ 5.25 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1355 (CN2011-ZH PDF)
12
LTC1544
A
'
B
C
B
'
C
'
GENERATOR
BALANCED
INTERCONNECTING
CABLE
LOAD
CABLE
TERMINATION
RECEIVER
1544 F18
50
125
50
50
125
50
Figure 18. Typical V.35 Interface
R3
124
R5
20k
LTC1344A
LTC1543
RECEIVER
1544 F19
A
B
A
'
B
'
C
'
R1
51.5
R8
6k
S2
S3
R2
51.5
R6
10k
R7
10k
GND
R4
20k
S1
Figure 19. V.35 Receiver Configuration
V.35 Interface
A typical V.35 balanced interface is shown in Figure 18. A
V.35 differential generator with outputs A and B with
ground C is connected to a differential receiver with
ground C
', inputs A' connected to A, B' connected to B. The
V.35 interface requires a T or delta network termination at
the receiver end and the generator end. The receiver
differential impedance measured at the connector must be
100
±10, and the impedance between shorted termi-
nals (A
' and B') and ground C' must be 150
±15.
In V.35 mode, both switches S1 and S2 inside the LTC1344A
are on, connecting the T network impedance as shown in
Figure 19. The switch in the LTC1543 is off. The 30k input
impedance of the receiver is placed in parallel with the T
network termination, but does not affect the overall input
impedance significantly.
APPLICATIONS INFORMATION
WU
U
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LTC1544IGPBF 制造商:Linear Technology 功能描述:RS-232/RS-449/RS-530 4T/4R SSOP28