DS92LV1021AMSA/NOPB National Semiconductor, DS92LV1021AMSA/NOPB Datasheet

IC SERIALIZER 10BIT 28-SSOP

DS92LV1021AMSA/NOPB

Manufacturer Part Number
DS92LV1021AMSA/NOPB
Description
IC SERIALIZER 10BIT 28-SSOP
Manufacturer
National Semiconductor
Datasheet

Specifications of DS92LV1021AMSA/NOPB

Function
Serializer
Data Rate
400Mbps
Input Type
LVTTL/LVCMOS
Output Type
LVDS
Number Of Inputs
10
Number Of Outputs
1
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-SSOP
For Use With
BLVDS03 - BOARD EVALUATION FOR DS92LV1021A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DS92LV1021AMSA
*DS92LV1021AMSA/NOPB
DS92LV1021AMSA

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS92LV1021AMSA/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
© 2003 National Semiconductor Corporation
DS92LV1021A
16-40 MHz 10 Bit Bus LVDS Serializer
General Description
The DS92LV1021A transforms a 10-bit wide parallel
LVCMOS/LVTTL data bus into a single high speed Bus
LVDS serial data stream with embedded clock. The
DS92LV1021A can transmit data over backplanes or cable.
The single differential pair data path makes PCB design
easier. In addition, the reduced cable, PCB trace count, and
connector size tremendously reduce cost. Since one output
transmits both clock and data bits serially, it eliminates clock-
to-data and data-to-data skew. The powerdown pin saves
power by reducing supply current when the device is not
being used. Upon power up of the Serializer, you can choose
to activate synchronization mode or use one of National
Semiconductor’s Deserializers in the synchronization-to-
random-data feature. By using the synchronization mode,
the Deserializer will establish lock to a signal within specified
lock times. In addition, the embedded clock guarantees a
Block Diagrams
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
DS200269
transition on the bus every 12-bit cycle. This eliminates
transmission errors due to charged cable conditions. Fur-
thermore, you may put the DS92LV1021A output pins into
TRI-STATE
can lock to frequencies between 16 MHz and 40 MHz.
Features
n Guaranteed transition every data transfer cycle
n Single differential pair eliminates multi-channel skew
n Flow-through pinout for easy PCB layout
n 400 Mbps serial Bus LVDS bandwidth (at 40 MHz clock)
n 10-bit parallel interface for 1 byte data plus 2 control bits
n Programmable edge trigger on clock
n Bus LVDS serial output rated for 27Ω load
n Small 28-lead SSOP package-MSA
®
to achieve a high impedance state. The PLL
January 2003
www.national.com
20026901

Related parts for DS92LV1021AMSA/NOPB

DS92LV1021AMSA/NOPB Summary of contents

Page 1

... In addition, the embedded clock guarantees a Block Diagrams TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2003 National Semiconductor Corporation transition on the bus every 12-bit cycle. This eliminates transmission errors due to charged cable conditions. Fur- thermore, you may put the DS92LV1021A output pins into TRI-STATE ® ...

Page 2

Block Diagrams (Continued) Functional Description The DS92LV1021A is an upgrade to the DS92LV1021. The DS92LV1021A no longer has a power-up sequence require- ment. Like the DS92LV1021, the DS92LV1021A is a 10-bit Serializer designed to transmit data over a differential back- ...

Page 3

Resynchronization (Continued) LOCK pin itself to control the sync request of the Serializer (SYNC1 or SYNC2). At the time of publication, other than the DS92LV1210, all other Deserializers from National Semicon- ductor have random lock capability. This feature does not ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( CMOS/TTL Input Voltage −0. CMOS/TTL Output Voltage −0. Bus LVDS Receiver Input Voltage Bus LVDS Driver Output Voltage Bus LVDS Output Short ...

Page 5

Serializer Timing Requirements for TCLK Over recommended operating supply and temperature ranges unless otherwise specified. Symbol Parameter t Transmit Clock Period TCP t Transmit Clock High Time TCIH t Transmit Clock Low Time TCIL t TCLK Input Transition CLKT Time ...

Page 6

AC Timing Diagrams and Test Circuits FIGURE 1. “Worst Case” Serializer ICC Test Pattern FIGURE 2. Serializer Bus LVDS Output Load and Transition Times Timing shown for TCLK_R/F = LOW www.national.com FIGURE 3. Serializer Input Clock Transition Time FIGURE 4. ...

Page 7

AC Timing Diagrams and Test Circuits FIGURE 5. Serializer TRI-STATE Test Circuit and Timing FIGURE 6. Serializer PLL Lock Time, and PWRDN TRI-STATE Delays (Continued) 20026909 7 20026925 www.national.com ...

Page 8

AC Timing Diagrams and Test Circuits www.national.com (Continued) FIGURE 7. SYNC Timing Delays FIGURE 8. Serializer Delay 8 20026926 20026911 ...

Page 9

AC Timing Diagrams and Test Circuits For an explanation of the Ideal Crossing Point, please see the Application Information Section. FIGURE 9. Serializer Deterministic Jitter and Ideal Crossing Point Application Information DIFFERENCES BETWEEN THE DS92LV1021A AND THE DS92LV1021 The DS92LV1021A ...

Page 10

Application Information PCB CONSIDERATIONS The Bus LVDS devices Serializer and Deserializer should be placed as close to the edge connector as possible. In mul- tiple Deserializer applications, the distance from the Deseri- alizer to the slot connector appears as a ...

Page 11

Serializer Pin Description Pin Name I/O DIN I TCLK_R/F I DO+ O DO− O DEN I PWRDN I TCLK I SYNC I DVCC I DGND I AVCC I AGND I Truth Table DIN (0–9) TCLK_R/F TCLK ...

Page 12

... 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 AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

Related keywords