SY89834U - Micrel Semiconductor

SY89834U 1GHz LVTTL/CMOS-TO-LVPECL 1:4 FANOUT BUFFER/TRANSLATOR

The SY89834U is a high-speed, 1GHz LVTTL/CMOS-toLVPECL fanout buffer/translator optimized for high-speed ultra-low skew applications. The input stage is designed to accept two single-ended LVTTL/CMOS compatible signals that feed into a 2:1 MUX. The selected input is translated and distributed as four differential 100K LVPECL outputs. Within device skew is gu.

Features

s Selects between two LVTTL/CMOS inputs and provides 4 LVPECL output copies s Guaranteed AC performance over temperature and voltage:
• DC-to >1.0GHz throughput
• <500ps propagation delay (IN-to-Q)
• < 20ps within-device skew
• < 225ps rise/fall time s Ultra-low jitter design:
• < 1psRMS cycle-to-cycle jitter
• < 1psRMS random jitter
• < 10psPP deterministic jitter
• < 10psPP total jitter (clock) s Low voltage 2.5V and 3.3V supply operation s 100K LVPECL outputs s Industrial temperature range:
  –40°C to +85°C s Includes a 2:1 MUX select input s Accepts single-ended TTL/CMOS inputs and provides .