Differential PECL/ECL/LVPECL/LVECL Receiver/Driver - Maxim
Description
19-2384; Rev 0; 4/02
Differential PECL/ECL/LVPECL/LVECL Receiver/Driver
General Description
The MAX9321B low-skew differential receiver/driver is 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 MAX9321B features ultra-low propagation delay (172ps) and part-to-part skew (20ps) with 24mA maximum supply current, making this device ideal for clock buffering or repeating.
For interfacing to differential PECL and LVPECL signals, these devices operate over a +3.
0V to +5.
5V supply range, allowing high-performance clock and data distribution in systems with a nominal 3.
3V or 5.
0V supply.
For differential ECL and LVECL operation, this device operates from a -3.
0V to -5.
5V supply.
The MAX9321B is offered in industry-standard 8-pin SO and TSSOP packages.
Features
o Improved Second Source of the MC10EP16D o +3.
0V to +5.
5V Differential PECL/LVPECL Operation o -3.
0V to -5.
5V Differential ECL/LVECL Operation o Low 17mA Supply Current o 20ps Part-to-Part Skew o 172ps Propagation Delay o Minimum 300mV Output at 3GHz o Output Low for Open Input o ESD Protection >2kV (Human Body Model) o On-Chip Reference for Single-Ended Input
MAX9321B
Applications
Precision Clock Buffer Low-Jitter Data Repeater
PART MAX9321BESA MAX9321BEUA*
Ordering Information
TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 SO 8 TSSOP
*Future product—contact factory for availability.
Pin Configuration
D VIH D VIL VBB (CONNECTED TO D)
VCC N.
C.
1 80kΩ D 2 60kΩ D 3 VBB 4 100kΩ 6 Q 5 VEE
MAX9321B
50kΩ
8 VCC 7 Q
Q VOH - VOL Q
VOH VOL
TSSOP/SO
Figure 1.
Switching with Single-Ended Inputs
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.
maxim-ic.
com.
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