DS92LV1021_14 Datasheet, PDF (1/23 Pages) Texas Instruments – 16-40 MHz 10 Bit Bus LVDS Serializer and Deserializer

DS92LV1021, DS92LV1210
www.ti.com
SNLS024C – MARCH 1999 – REVISED APRIL 2013
DS92LV1021 and DS92LV1210 16-40 MHz 10 Bit Bus LVDS Serializer and Deserializer
Check for Samples: DS92LV1021, DS92LV1210
FEATURES
1
•2 Ensured Transition Every Data Transfer Cycle
• Single Differential Pair Eliminates Multi-
channel Skew
• Flow-through Pinout for Easy PCB Layout
• 400 Mbps Serial Bus LVDS Bandwidth (at 40
MHz clock)
• 10-bit Parallel Interface for 1 Byte Data Plus 2
Control Bits
• Synchronization Mode and LOCK Indicator
• Programmable Edge Trigger on Clock
• High Impedance on Receiver Inputs When
Power is off
• Bus LVDS Serial Output Rated for 27Ω Load
• Small 28-lead SSOP Package (DB)
DESCRIPTION
The DS92LV1021 transforms a 10-bit wide parallel
CMOS/TTL data bus into a single high speed Bus
LVDS serial data stream with embedded clock. The
DS92LV1210 receives the Bus LVDS serial data
stream and transforms it back into a 10-bit wide
parallel data bus and separates clock. The
DS92LV1021 may transmit data over heavily loaded
backplanes or 10 meters of cable. The reduced
cable, PCB trace count and connector size saves
cost and makes PCB design layout easier. Clock-to-
data and data-to-data skew are eliminated since one
output will transmit both clock and all data bits
serially. The powerdown pin is used to save power,
by reducing supply current when either device is not
in use. The Serializer has a synchronization mode
that should be activated upon power-up of the device.
The Deserializer will establish lock to this signal
within 1024 cycles, and will flag Lock status. The
embedded clock ensures a transition on the bus
every 12-bit cycle; eliminating transmission errors due
to charged cable conditions. The DS92LV1021 output
pins may be TRI-STATE to achieve a high
impedance state. The PLL can lock to frequencies
between 16 MHz and 40 MHz.
Block Diagram
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated