參數(shù)資料
型號: LTC1348ISW#TR
廠商: Linear Technology
文件頁數(shù): 6/8頁
文件大?。?/td> 0K
描述: IC TXRX RS232 3.3-5V LPWR 28SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 3/5
規(guī)程: RS232
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
包裝: 帶卷 (TR)
6
LTC1348
Figure 1. Driver Propagation Delay Timing
Figure 2. Receiver Propagation Delay Timing
SWITCHI G TI E WAVEFOR S
WW
U
1.4V
0V
VCC
0V
V+
V
0V
DRIVER
INPUT
DRIVER
OUTPUT
1.4V
t HLD
t LHD
LTC1348 F01
0.8V
VCC
0V
2.4V
RX
INPUT
RX
OUTPUT
1.3V
t HLR
1.7V
t LHR
LTC1348 F02
VCC
0V
APPLICATIONS INFORMATION
WU
U
TEST CIRCUITS
Figure 3. Driver Timing Test Load
RX
RX INPUT
51pF
RX
OUTPUT
LTC1348 F04
Figure 4. Receiver Timing Test Load
DRIVER
INPUT
3k
51pF
DRIVER
OUTPUT
LTC1348 F03
Power Supply
The LTC1348 includes an onboard voltage-tripling charge
pump capable of generating
±8V from a single 3.3V
supply. This allows the LTC1348 drivers to provide guar-
anteed
±5V RS232-compliant voltage levels with a 3.3V
supply. With all outputs loaded with 3k
, the LTC1348
can typically swing
±5V with voltages as low as 2.85V. It
will meet the
±3.7V EIA562 levels with supply voltages as
low as 2.2V. The charge pump requires three external
flying capacitors to operate; 0.1
F ceramic capacitors are
adequate for most applications. For applications requiring
extremely high data rates or abnormally heavy output
loads, 0.33
F flying capacitors are recommended. Bypass
and output capacitor values should match those of the
flying capacitors and all capacitors should be mounted as
close to the package as possible.
LT1348 TC
RS232 LINE PINS
PROTECTED TO
±10kV
0.1
F
0.1
F
0.1
F
0.1
F
0.1
F
LTC1348
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DR1 OUT
RX1 IN
DR2 OUT
RX2 IN
RX3 IN
RX4 IN
DR3 OUT
RX5 IN
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DR1 IN
RX1 OUT
DR2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DR3 IN
RX5 OUT
DREN
RXEN
V
V+
VCC
GND
0.1
F
C2+
C3+
C3
C2
C1+
C1
ESD Test Circuit
相關(guān)PDF資料
PDF描述
VI-BVY-MX CONVERTER MOD DC/DC 3.3V 49.5W
VI-BNV-IV-F4 CONVERTER MOD DC/DC 5.8V 150W
VI-BVX-MY CONVERTER MOD DC/DC 5.2V 50W
ADM5170JP IC TXRX RS232/423 OCTAL 28PLCC
IDT72V06L25JI8 IC ASYNCH 8192X18 25NS 32PLCC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1349CG 功能描述:IC TXRX 5V RS232 LOW PWR 28-SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232,RS485 電源電壓:4.75 V ~ 5.25 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 包裝:管件
LTC1349CG#PBF 功能描述:IC TXRX 5V RS232 LOW PWR 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232,RS485 電源電壓:4.75 V ~ 5.25 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 包裝:管件
LTC1349CG#TR 功能描述:IC TXRX RS232 5V SHTDN LP 28SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232,RS485 電源電壓:4.75 V ~ 5.25 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 包裝:管件
LTC1349CG#TRPBF 功能描述:IC TXRX 5V RS232 LOW PWR 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232,RS485 電源電壓:4.75 V ~ 5.25 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 包裝:管件
LTC1349CN 制造商:Linear Technology 功能描述:5V L/P RS232 3Dx/5Rx w/2Rx Active