Differential LVPECL/LVECL/HSTL Receiver/Drivers

The MAX9321/MAX9321A are low-skew differential receiver/drivers designed for clock and data distribution. The differential input can be adapted to accept a single-ended input by connecting the on-chip VBB supply to an input as a reference voltage.

The MAX9321/MAX9321A feature ultra-low propagation delay (172ps) and part-to-part skew (20ps) with 24mA maximum supply current, making these devices ideal for clock buffering or repeating. For interfacing to differential HSTL and LVPECL signals, these devices operate over a +2.25V to +3.8V supply range, allowing high-performance clock and data distribution in systems with a nominal +2.5V or +3.3V supply. For differential LVECL operation, these devices operate from a -2.25V to -3.8V supply. Multiple pinouts are provided to simplify routing across a backplane to either side of a double-sided board.

Both devices are offered in space-saving 8-pin SOT23, SO, and µMAX packages.

Applications

* Low-Jitter Data Repeater * Precision Clock Buffers

* Improved Second Source of the MC10LVEP16 (MAX9321)

* +2.25V to +3.8V Differential HSTL/LVPECL Operation

* -2.25V to -3.8V Differential LVECL Operation

* Low 17mA Supply Current

* 20ps Part-to-Part Skew

* 172ps Propagation Delay

* Minimum 300mV Output at 3GHz

* Output Low for Open Input

* ESD Protection >2kV (Human Body Model)

* On-Chip Reference for Single-Ended Input

* Available in Thermally Enhanced Exposed-Pad SO Package