NB4L52: 2.5 to 5.5 V ECL D Flip-flop w/Differential Reset & Input Termination

The NB4L52 is a differential Data and Clock D flip−flop with a differential asynchronous Reset. The differential inputs incorporate internal 50-ohm termination resistors and will accept LVPECL, LVCMOS, LVTTL, CML, or LVDS logic levels. When Clock transitions from Low to High, Data will be transferred to the differential LVPECL outputs. The differential Clock inputs allow the NB4L52 to also be used as a negative edge triggered device. The device is housed in a small 3mm x 3mm 16 pin QFN package.

Features
  • Maximum Input Clock Frequency > 4 GHz Typical
  • 330 ps Typical Propagation Delay
  • 145 ps Typical Rise and Fall Times
  • Differential LVPECL Outputs, 750 mV PeaktoPeak, Typical
  • Operating Range: VCC = 2.375 V to 5.5 V with VEE = 0 V
Applications
  • High Performance Logic for ATE and Networking
Simulation Models (1)
Document TitleDocument ID/SizeRevisionRevision Date
IBIS Model for the NB4L52MNNB4L52MN.IBS (36.0kB)1
Package Drawings (1)
Document TitleDocument ID/SizeRevision
QFN16, 3x3, 0.5P485G-01 (57.3kB)F
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
2.5V/3.3V/5V Differential Data/Clock D Flip−Flop with ResetNB4L52/D (143.0kB)3
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NB4L52MNGActivePb-free Halide freeQFN-16485G-011Tube123Contact BDTIC
NB4L52MNR2GActivePb-free Halide freeQFN-16485G-011Tape and Reel3000Contact BDTIC
Specifications
ProductTypeBitsInput LevelOutput LevelVCC Typ (V)tJitter Typ (ps)tpd Typ (ns)tsu Min (ns)th Min (ns)trec Typ (ns)tR & tF Max (ps)fToggle Typ (MHz)
NB4L52MNGD-Type1CMOS LVDS ECL CMLECL3.3 5 2.510.40.10.050.41904000
NB4L52MNR2GD-Type1LVDS ECL CMOS CMLECL2.5 3.3 510.40.10.050.41904000
2.5V/3.3V/5V Differential Data/Clock D Flip−Flop with Reset (143.0kB) NB4L52
IBIS Model for the NB4L52MN NB4L52
QFN16, 3x3, 0.5P NLSF308