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DS3650 Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer DS3650
Beschreibung Quad Differential Line Receivers
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 10 Seiten
DS3650 Datasheet, Funktion
June 1999
DS3650
Quad Differential Line Receivers
General Description
The DS3650 is TTL compatible quad high speed circuits in-
tended primarily for line receiver applications. Switching
speeds have been enhanced over conventional line receiv-
ers by the use of Schottky technology, and TRI-STATE®
strobing is incorporated offering a high impedance output
state for bussed organizations.
The DS3650 has active pull-up outputs and offers a
TRI-STATE strobe.
Features
n High speed
n TTL compatible
n Input sensitivity: ±25 mV
n TRI-STATE outputs for high speed busses
n Standard supply voltages: ±5V
n Pin and function compatible with MC3450
Connection Diagram
Dual-In-Line Package
Wired “OR” Data Selecting Using TRI-STATE Logic
DS005782-1
Top View
Order Number DS3650M or DS3650N
See NS Package Number M16A or N16A
For Complete Military 883 Specifications,
see RETS Data Sheet.
Input
Strobe
Output
DS3650
VD 25 mV
L
H
−25 mV VID 25 mV
L
H
VID −25 mV
L
H
L = Low Logic State Open = TRI-STATE
H = High Logic State X = Indeterminate State
H
Open
X
Open
L
Open
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS005782
DS005782-3
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DS3650 Datasheet, Funktion
AC Test Circuits and Switching Time Waveforms
DS005782-12
Note. EIN waveform characteristics:
tTLH and tTHL 10 ns measured
10% to 90%
PRR = 1 MHz
Duty Cycle = 50%
DS005782-11
Note. Output of Channel B shown under test, other channels are tested similarly.
S1 at “B” for DS1650/DS3650
CL = 50 pF total for DS3650
FIGURE 8. Receiver Propagation Delay tPLH(D) and tPHL(D)
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