DS75115中文资料

TL F 5787DS75115 DS9615 Dual Differential Line Receiver

January1996

DS75115 DS9615Dual Differential Line Receiver

General Description

The DS75115 DS9615is a dual differential line receiver de-

signed to sense differential signals from data transmission

lines Designed for operation over military and commercial

temperature ranges the DS75115 DS9615can typically re-

ceive g500mV differential data with g15V common-mode

noise Outputs are open-collector and give TTL compatible

signals which are a function of the polarity of the differential

input signal Active output pull-ups are also available offer-

ing the option of an active TTL pull-up through an external

connection

Response time may be controlled with the use of an exter-

nal capacitor Each channel may be independently con-

trolled and optional input termination resistors are also

available

Features

Y Single5V supply

Y High common-mode voltage range

Y Each channel individually strobed

Y Independent response time control

Y Uncommitted collector or active pull-up option

Y TTL compatible output

Y Optional130X termination resistors

Y Direct replacement for9615

Connection Diagram

Dual-In-Line Package

TL F 5787–1

Top View

Order Number DS75115N

See NS Package Number N16A

For Complete Military883Specifications See RETS Datasheet

Order Number DS9615MJ 883 DS9615ME 883

Function Table

Strobe

Diff

Output

Input

L X H

H L H

H H L

H e V I t V IH min or V ID more positive than V TH max

L e V I s V IL max or V ID more negative than V TL max

X e irrelevant

C1996National Semiconductor Corporation RRD-B30M36 Printed in U S A http www national com

Absolute Maximum Ratings(Note1)

If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage V CC(Note1)7V Input Voltage at A B and R T Inputs g25V Input Voltage at Strobe Input5 5V Off-State Voltage Applied to Open-Collector Outputs14V Maximum Power Dissipation at25 C

Cavity Package1433mW Molded Package1362mW Operating Free-Air Temperature Range

DS9615M b55 C to a125 C DS571150 C to a70 C Storage Temperature Range b65 C to a150 C Lead Temperature

( inch from case for4seconds)260 C Derate cavity package9 6mW C above25 C derate molded package 10 9mW C above25 C

Operating Conditions

Min Max Units Supply Voltage (V CC)

DS9615M4 55 5V DS751154 755 25V High Level Output Current(I OH)b5mA Low Level Output Current(I OL)15mA Operating Temperature(T A)

DS9615M b55125 C DS75115070 C

Electrical Characteristics(Notes2 3and5)

Symbol Parameter Conditions

DS75115

Units Min Typ Max

V TH Differential Input High-V O e0 4V I OL e15mA V IC e0V

200500mV Threshold Voltage

V TL Differential Input Low-V O e2 4V I OH e b5mA V IC e0V b

200b500mV Threshold Voltage

V ICR Common-Mode Input V ID e g1V1524

Voltage Range to to V

b15b19

V IH(STROBE)High-Level Strobe

2 4V

Input Voltage

V IL(STROBE)Low-Level Strobe

0 4V

Input Voltage

V OH High Level Output Voltage V CC e Min V ID e b0 5V T A e Min2 4

I OH e b5mA T

A e25 C2 43 4V

T A e Max2 4

V OL Low Level Output Voltage V CC e Min V ID e0 5V I OL e15mA0 220 45V

I IL Low Level Input Current V CC e Max V I e0 4V T A e Min b0 9

Other Input at5 5V T

A e25 C b0 5b0 7mA

T A e Max b0 7

I SH High Level Strobe Current V CC e Min V ID e b0 5V T A e25 C0 55

m A

V STROBE e4 5V T

A e Max10

I SL Low Level Strobe Current V CC e Max V ID e0 5V T A e25 C b1 15b2 4mA

V STROBE e0 4V

I4 I12Response Time Control V CC e Max V ID e0 5V T A e25 C b1 2b3 4mA Current(Pin4or Pin12)V RC e0V

I O(OFF)Off-State Open-Collector V CC e Min V OH e12V T A e25 C

Output Current V ID e b4 5V T

A e Max

m A

V CC e Min V OH e5 25V T A e25 C100

V ID e b4 75V T

A e Max200

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Electrical Characteristics(Notes2 3and5)(Continued)

Symbol Parameter Conditions

DS75115

Units Min Typ Max

R T Line Terminating V CC e5V T A e25 C74130179X Resistance

I OS Short-Circuit Output V CC e Max V O e0V T A e25 C b14b40b100mA

Current V ID e b0 5V (Note4)

I CC Supply Current(Both V CC e Max V ID e0 5V T A e25 C3250mA

Receivers)V IC e0V

Note1 ‘‘Absolute Maximum Ratings’’are those values beyond which the safety of the device cannot be guaranteed Except for‘‘Operating Temperature Range’’they are not meant to imply that the devices should be operated at these limits The table of‘‘Electrical Characteristics’’provides conditions for the actual device operation

Note2 Unless otherwise specified min max limits apply across the b55 C to a125 C temperature range for the DS9615M and across the0 C to a70 C range for the DS75115 All typical values are for T A e25 C V CC e5V and V CM e0V

Note3 All currents into device pins shown as positive out of device pins as negative all voltages referenced to ground unless otherwise noted All values shown as max or min on absolute value basis

Note4 Only one output at a time should be shorted

Note5 Unless otherwise noted V STROBE e2 4V All parameters with the exception of off-state open-collector output current are measured with the active pull-up connected to the sink output

Switching Characteristics V CC e5V C L e30pF T A e25 C

Symbol Parameter Conditions

DS75115

Units Min Typ Max

t PLH Propagation Delay Time Low-R L e3 9k X (Figure1)

1875ns to-High Level Output

t PHL Propagation Delay Time High-R L e390X (Figure1)

2075ns to-Low Level Output

Schematic Diagram

TL F 5787–2

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Typical Performance Characteristics (Note 3)

Voltage

Input Current vs Input Temperature

Output Voltage vs Input Voltage

Common-Mode Output Voltage vs vs Output Current High Level Output Voltage vs Output Current Low Level Output Voltage Differential Input Voltage

Output Voltage vs

vs Differential Input Voltage Output Voltage

Strobe Input Voltage Output Voltage vs Strobe Input Voltage

Output Voltage vs vs Supply Voltage Supply Current (Both Receivers)vs Temperature Supply Current (Both Receivers)vs Temperature

Propagation Delay Times TL F 5787–4

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Frequency Response Control

TL F 5787–5

Note C R (response control)l 0 01m F may cause slowing of rise and fall times of the output

Frequency Response as a Function of Capacitance

TL F 5787–6

AC Test Circuit and Switching Time Waveforms

TL F 5787–7

TL F 5787–8

FIGURE 1 Propagation Delay Time (Notes 1 2)

Note 1 The pulse generator has the following characteristics Z OUT e 50X PRR e 500kHz t W e 100ns Note 2 C L includes probe and test fixture capacitance

Typical Application

Basic Party-Line or Data-Bus Differential Data Transmission

Z O is internal to the DS9615 DS75115

TL F 5787–3

A capacitor may be connected in series with Z O to reduce power dissipation

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D S 75115 D S 9615D u a l D i f f e r e n t i a l L i n e R e c e i v e r

Physical Dimensions inches (millimeters)

Ceramic Dual-In-Line Package (J)Order Number DS55115J or DS75115J

NS Package Number J16A

Molded Dual-In-Line Package (N)

Order Number DS75115N NS Package Number N16A

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or 2 A critical component is any component of a life systems which (a)are intended for surgical implant support device or system whose failure to perform can into the body or (b)support or sustain life and whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system or to affect its safety or with instructions for use provided in the labeling can effectiveness

be reasonably expected to result in a significant injury to the user

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