- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10007 > LTC1546CG (Linear Technology)IC SW TRANSCEIVER W/TERM 28-SSOP PDF資料下載
參數(shù)資料
| 型號： | LTC1546CG |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 20/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SW TRANSCEIVER W/TERM 28-SSOP |
| 標準包裝： | 47 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 3/3 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 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 |
| 其它名稱： | Q1522300 |
9
LTC1546
Figure 15. V.28 Driver Propagation Delays
Figure 16. V.28 Receiver Propagation Delays
VIH
VIL
1.3V
0.8V
1.7V
2.4V
tPHL
VOH
VOL
A
R
tPLH
1546 F16
3V
0V
1.5V
0V
–3V
3V
1.5V
0V
3V
–3V
tPHL
tf
VO
–VO
D
A
tPLH
tr
1546 F15
SR = 6V
tf
SR = 6V
tr
SWITCHI G TI E WAVEFOR S
UW
W
Overview
The LTC1546 and LTC1544 form a complete software-
selectable DTE or DCE interface port that supports the
RS232, RS449, EIA530, EIA530-A, V.35, V.36 and X.21
protocols. Cable termination is provided on-chip, elimi-
nating the need for discrete termination designs.
A complete DCE-to-DTE interface operating in EIA530
mode is shown in Figure 17. The LTC1546 half of each port
is used to generate and appropriately terminate the clock
and data signals. The LTC1544 is used to generate the
control signals along with LL (Local Loopback).
Mode Selection
The interface protocol is selected using the mode select
pins M0, M1 and M2 (see Table 1).
For example, if the port is configured as a V.35 interface,
the mode selection pins should be M2 = 1, M1 = 0, M0 = 0.
For the control signals, the drivers and receivers will
operate in V.28 (RS232) electrical mode. For the clock and
data signals, the drivers and receivers will operate in V.35
electrical mode. The DCE/DTE pin will configure the port
for DCE mode when high, and DTE when low.
The interface protocol may be selected simply by plugging
the appropriate interface cable into the connector. The
mode pins are routed to the connector and are left uncon-
nected (1) or wired to ground (0) in the cable as shown in
Figure 18. The internal pull-up current sources will ensure
a binary 1 when a pin is left unconnected.
The mode selection may also be accomplished by using
jumpers to connect the mode pins to ground or VCC.
When the cable is removed, leaving all mode pins uncon-
nected, the LTC1546/LTC1544 will enter no-cable mode.
In this mode the LTC1546/LTC1544 supply current drops
to less than 500
A and the LTC1546/LTC1544 driver
outputs are forced into a high impedance state. At the
same time, the R2 and R3 receivers of the LTC1546 are
differentially terminated with 103
and the other receiv-
ers on the LTC1546 and LTC1544 are terminated with
30k
to ground.
APPLICATIO S I FOR ATIO
WU
UU
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS3101E10S-2S | CONN RCPT 1POS FREE HNG W/SCKT |
| IDT72V3614L20PQF | IC FIFO 64X36X2 20NS 132QFP |
| IDT72V3613L20PQF | IC FIFO CLOCK 64X36 20NS 132PQFP |
| VI-261-IW-F3 | CONVERTER MOD DC/DC 12V 100W |
| XRT82D20IWTR-F | IC LIU E1 SGL 28SOJ |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1546CG#PBF | 功能描述:IC TXRX SOFTWARE SEL TERM 28SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 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:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| LTC1546CG#TR | 功能描述:IC TXRX SOFTWARE SELECTBL 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:- 標準包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 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:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| LTC1546CG#TRPBF | 功能描述:IC SW TRANSCEIVER W/TERM 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:- 標準包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 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:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| LTC1546IG | 功能描述:IC TXRX SOFTWARE SELECTBL 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:- 標準包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 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:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| LTC1546IG#PBF | 功能描述:IC SW TRANSCEIVER W/TERM 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:- 標準包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 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:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。