參數(shù)資料
型號(hào): LTC1545
廠商: Linear Technology Corporation
英文描述: Software-Selectable Multiprotocol Transceiver(軟件-可選擇多協(xié)議5發(fā)5收收發(fā)器)
中文描述: 軟件選擇多協(xié)議收發(fā)器(軟件-可選擇多協(xié)議5發(fā)5收收發(fā)器)
文件頁(yè)數(shù): 5/16頁(yè)
文件大?。?/td> 248K
代理商: LTC1545
5
LTC1545
V
CC
(Pins 1, 19):
Positive Supply for the Transceivers.
4.75V
V
CC
5.25V. Connect a 1
μ
F capacitor to ground.
V
DD
(Pins 2, 20):
Positive Supply Voltage for V.28. Con-
nect to V
DD
Pin 3 on LTC1543 or 8V supply. Connect a 1
μ
F
capacitor to ground.
D1 (Pin 3):
TTL Level Driver 1 Input.
D2 (Pin 4):
TTL Level Driver 2 Input.
D3 (Pin 5):
TTL Level Driver 3 Input.
R1 (Pin 6):
CMOS Level Receiver 1 Output.
R2 (Pin 7):
CMOS Level Receiver 2 Output.
R3 (Pin 8):
CMOS Level Receiver 3 Output.
D4 (Pin 9):
TTL Level Driver 4 Input.
R4 (Pin 10):
CMOS Level Receiver 4 Output.
M0 (Pin 11):
TTL Level Mode Select Input 0 with Pull-Up
to V
CC
.
M1 (Pin 12):
TTL Level Mode Select Input 1 with Pull-Up
to V
CC
.
M2 (Pin 13):
TTL Level Mode Select Input 2 with Pull-Up
to V
CC
.
DCE/DTE (Pin 14):
TTL Level Mode Select Input with
Pull-Up to V
CC
. Logic high enables Driver 3. Logic low
enables Receiver 1.
D4ENB (Pin 15):
TTL Level Enable Input with Pull-Up to
V
CC
. Logic low enables Driver 4.
R4EN (Pin 16):
TTL Level Enable Input with Pull-Up to V
CC
.
Logic high enables Receiver 4.
PI
FU
CTIO
N
S
U
U
R5 (Pin 17):
CMOS Level Receiver 5 Output.
D5 (Pin 18):
TTL Level Driver 5 Input.
D5 A (Pin 21):
Driver 5 Output.
R5 A (Pin 22):
Receiver 5 Input.
R4 A (Pin 23):
Receiver 4 Input.
D4 A (Pin 24):
Driver 4 Input.
R3 B (Pin 25):
Receiver 3 Noninverting Input.
R3 A (Pin 26):
Receiver 3 Inverting Input.
R2 B (Pin 27):
Receiver 2 Noninverting Input.
R2 A (Pin 28):
Receiver 2 Inverting Input.
D3/R1 B (Pin 29):
Receiver 1 Noninverting Input and
Driver 3 Noninverting Output.
D3/R1 A (Pin 30):
Receiver 1 Inverting Input and Driver 3
Inverting Output.
D2 B (Pin 31):
Driver 2 Noninverting Output.
D2 A (Pin 32):
Driver 2 Inverting Output.
D1 B (Pin 33):
Driver 1 Noninverting Output.
D1 A (Pin 34):
Driver 1 Inverting Output.
GND (Pin 35):
Ground.
V
EE
(Pin 36):
Negative Supply Voltage. Connect to V
EE
Pin
26 on LTC1543. Connect a 1
μ
F capacitor to ground.
Figure 1. V.11 Driver Test Circuit
Figure 2. V.11 Driver/Receiver AC Test Circuit
A
B
1545 F01
V
OD
V
OC
R
L
R
L
A
B
A
R
B
1545 F02
R
L
100
C
L
100pF
C
100pF
15pF
TEST CIRCUITS
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