SY58028U Series

Catalog

10.7GBPS 4:1 CML MULTIPLEXER W/ 1:2 FANOUT 32 VQFN 5X5X0.9MM TUBE ROHS COMPLIANT: YES

Part	Type	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Voltage Supply Source	Circuit	Independent Circuits	Supplier Device Package
Microchip Technology SY58028UMG	Multiplexer	Surface Mount	85 °C	-40 °C	2.625 V, 3.6 V	2.375 V, 3 V	32-VFQFN Exposed Pad	Single Supply	1 x 4:1	1	32-QFN (5x5)

Catalog

Key Features

• + Selects 1 of 4 differential inputs

• + Provides two copies of the selected input

• + DC-to- >10.7Gbps data rate throughput

• + <350ps IN-to-Out tpd

• + <60ps tr/ tf times

• + <10psPP total jitter (clock)

• + <1psRMS random jitter

• + <10psPP deterministic jitter

• + <0.7psRMS crosstalk-induced jitter

• + Unique patended input design minimizes crosstalk

• + Accepts an input signal as low as 100mV

• + Unique patended input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS)

• + Internal 50O output source termination

• + 400mV CML output swing (RL = 50O)

• + Power supply 2.5V ±5% or 3.3V ±10%

• + -40°C to +85°C temperature range

• + Available in 32-pin (5mm x 5mm) MLF® package

Description

The SY58028U is a 2.5V/3.3V precision, high-speed, 4:1 differential CML multiplexer capable of handling clocks up to 7GHz and data streams up to 10.7Gbps. In addition, a 1:2 fanout buffer provides two copies of the selected inputs.The differential input includes Micrel's unique, 3-pin input termination architecture that allows customers to interface to any differential signal (AC- or DC-coupled) as small as 100mV without any level shifting or termination resistor networks in the signal path. The result is a clean, stub-free, low-jitter interface solution. The outputs are 50Ω source terminated CML, with extremely fast rise/fall times guaranteed to be less than 60ps.The SY58028U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. For applications that require LVPECL outputs, consider the SY58029U or SY58030U Multiplexers. The SY58028U is part of Micrel's high-speed, Precision Edge® product line.