DS90LV049HMTX National Semiconductor, DS90LV049HMTX Datasheet

IC LDRVR/RCVR PAIR LVDS 16-TSSOP

DS90LV049HMTX

Manufacturer Part Number
DS90LV049HMTX
Description
IC LDRVR/RCVR PAIR LVDS 16-TSSOP
Manufacturer
National Semiconductor
Type
Line Transceiverr
Datasheet

Specifications of DS90LV049HMTX

Number Of Drivers/receivers
2/2
Protocol
RS644
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Number Of Elements
2
Number Of Receivers
2
Number Of Drivers
2
Input Type
CMOS/TTL
Operating Supply Voltage (typ)
3.3V
Differential Input High Threshold Voltage
35mV
Diff. Input Low Threshold Volt
-100mV
Differential Output Voltage
450mV
Transmission Data Rate
400Mbps
Propagation Delay Time
3.5ns
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
16
Package Type
TSSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
DS90LV049HMTXTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS90LV049HMTX/NOPB
Manufacturer:
NS
Quantity:
16 578
© 2005 National Semiconductor Corporation
DS90LV049H
High Temperature 3V LVDS Dual Line Driver and
Receiver Pair
General Description
The DS90LV049H is a dual CMOS flow-through differential
line driver-receiver pair designed for applications requiring
ultra low power dissipation, exceptional noise immunity, and
high data throughput. The device is designed to support data
rates in excess of 400 Mbps utilizing Low Voltage Differential
Signaling (LVDS) technology.
The DS90LV049H drivers accept LVTTL/LVCMOS signals
and translate them to LVDS signals. The receivers accept
LVDS signals and translate them to 3 V CMOS signals. The
LVDS input buffers have internal failsafe biasing that places
the outputs to a known H (high) state for floating receiver
inputs. In addition, the DS90LV049H supports a TRI-STATE
function for a low idle power state when the device is not in
use.
The EN and EN inputs are ANDed together and control the
TRI-STATE outputs. The enables are common to all four
gates.
Connection Diagram
Truth Table
Order Number DS90LV049HMTX (Tape and Reel)
See NS Package Number MTC16
Order Number DS90LV049HMT
L or Open
L or Open
EN
H
H
Dual-In-Line
20161701
DS201617
L or Open
L or Open
EN
H
H
Features
n High Temperature +125˚C Operating Range
n Up to 400 Mbps switching rates
n Flow-through pinout simplifies PCB layout
n 50 ps typical driver channel-to-channel skew
n 50 ps typical receiver channel-to-channel skew
n 3.3 V single power supply design
n TRI-STATE output control
n Internal fail-safe biasing of receiver inputs
n Low power dissipation (70 mW at 3.3 V static)
n High impedance on LVDS outputs on power down
n Conforms to TIA/EIA-644-A LVDS Standard
n Available in low profile 16 pin TSSOP package
Functional Diagram
LVDS Out
OFF
OFF
OFF
ON
LVCMOS Out
OFF
OFF
OFF
ON
20161702
September 2005
www.national.com

Related parts for DS90LV049HMTX

DS90LV049HMTX Summary of contents

Page 1

... The EN and EN inputs are ANDed together and control the TRI-STATE outputs. The enables are common to all four gates. Connection Diagram Dual-In-Line 20161701 Order Number DS90LV049HMT Order Number DS90LV049HMTX (Tape and Reel) See NS Package Number MTC16 Truth Table Open Open H © 2005 National Semiconductor Corporation Features n High Temperature +125˚ ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( LVCMOS Input Voltage ( LVDS Input Voltage ( IN+ IN- Enable Input Voltage (EN, EN) LVCMOS Output Voltage (R ) OUT LVDS Output Voltage ( OUT+ ...

Page 3

Electrical Characteristics Over supply voltage and operating temperature ranges, unless otherwise specified. (Notes Symbol Parameter LVCMOS Output DC Specifications (Receiver Outputs) V Output High Voltage OH V Output Low Voltage OL I Output TRI-STATE Current OZ General ...

Page 4

Switching Characteristics Note differential channel-to-channel skew is defined as the magnitude difference in the differential propagation delays between two driver channels on SKD2 the same device. Note differential part-to-part skew is defined as |t ...

Page 5

Parameter Measurement Information FIGURE 3. Driver Propagation Delay and Transition Time Waveforms FIGURE 4. Driver TRI-STATE Delay Test Circuit (Continued) 20161705 5 20161706 www.national.com ...

Page 6

Parameter Measurement Information FIGURE 6. Receiver Propagation Delay and Transition Time Test Circuit FIGURE 7. Receiver Propagation Delay and Transition Time Waveforms www.national.com (Continued) FIGURE 5. Driver TRI-STATE Delay Waveform 6 20161707 20161709 20161710 ...

Page 7

Parameter Measurement Information FIGURE 8. Receiver TRI-STATE Delay Test Circuit FIGURE 9. Receiver TRI-STATE Delay Waveforms Typical Application (Continued) FIGURE 10. Point-to-Point Application 7 20161711 20161714 20161708 www.national.com ...

Page 8

Applications Information General application guidelines and hints for LVDS drivers and receivers may be found in the following application notes: LVDS Owner’s Manual (lit #550062-003), AN-805, AN-808, AN-903, AN-916, AN-971, AN-977. LVDS drivers and receivers are intended to be primarily ...

Page 9

Applications Information The receiver’s internal fail-safe circuitry is designed to source/sink a small amount of current, providing fail-safe protection (a stable known state of HIGH output voltage) for floating receiver inputs. The DS90LV049H has two receivers, and if an application ...

Page 10

... Wide) Molded Thin Shrink Small Outline Package, JEDEC Order Number DS90LV049HMTX (Tape and Reel) National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. ...

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