AT84CS001 Datasheet, PDF (1/8 Pages) ATMEL Corporation – 10-BIT 1:2/4 2.2GHz LVDS DMUX

Features
• High-speed ADC Family Companion Chip
• Selectable 1:2 or 1:4 DMUX Ratio
• Power Consumption: 2.6W
• LVDS Compatible Differential Data and Clock Inputs (100Ω Terminated)
• LVDS Compatible Differential Data and Data Ready Outputs
• Staggered or Simultaneous Data Outputs
– 11^th Bit = Ports A, B, C and D Clock in Staggered Mode
• Selectable Active Edge for Input and Output Clocks:
– Only Rising: CLK and DR Mode
– Rising and Falling: CLK/2 and DR/2 Mode
• Fine Tuning of Input Clock Path Delay
– Compensation of External Data and Clock Path Misalignment and Skews
– Once Tuned, Setting is Valid over Full Operating Frequency and Over Full
Specified Temperature Range
• Additional 11^th Bit (Example: for Out-of-range Bit)
• Built-in Self Test (BIST)
• Stand-alone Tunable Delay Cell
• Power Supplies: V_CCD = 3.3V (Digital), V_PLUSD = 2.5V (Outputs)
• Power Consumption Reduction Mode: 1.1W
• EBGA240 Package
10-bit 1:2/4
2.2 GHz LVDS
DMUX
AT84CS001
Screening
• Temperature Range:
– -40° C < T_C; T_J < 110° C (Industrial Grade)
Applications
This DMUX enables users to process high-speed output data streams from fast ana-
log-to-digital converters down to standard FPGA processor speed.
Summary
Description
The AT84CS001 is a monolithic high-speed demultiplexer, used to lower a 10-bit data
stream of up to 2.2 Gsps guaranteed rate by a selectable 4 or 2 ratio (a 1:8 ratio may
be achieved by interleaving two DMUXes).
The DMUX is a companion chip designed to fit perfectly with all of Atmel’s high-speed
ADCs and is capable of tracking the ADC’s output sampling rate over all operating fre-
quency and temperature ranges.
Thanks to its LVDS buffers, this DMUX can easily be interfaced with standard high-
speed FPGAs (100Ω differentially terminated).
The AT84CS001 has the same footprint as Atmel’s TS81102G0 DMUX, with a very
similar pinout. Minimum re-design efforts are required to use this low-power DMUX.
An application note “Replacing Atmel’s TS81102G0 DMUX with Atmel’s AT84CS001
LVDS DMUX” reference 5413, is available to assist in migrating from the TS81102G0
to the AT84CS001.
5402AS–BDC–11/04
This is a summary document. A complete document is not
available at this time. For more information, please contact
your local Atmel sales office.