SY89540U Series

Catalog

DIGITAL CROSSPOINT SINGLE 4X4 4GBPS 44-PIN QFN EP TRAY

Part	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Voltage Supply Source	Supplier Device Package	Independent Circuits	Type	Circuit [custom]	Circuit [custom]	Voltage - Supply [Min]	Voltage - Supply [Max]
Microchip Technology SY89540UMY
Microchip Technology SY89540UMY
Microchip Technology SY89540UMY	44-MLF®, 44-VFQFN Exposed Pad	85 °C	-40 °C	Surface Mount	Single Supply	44-MLF® (7x7)	1	Crosspoint Switch	1	4:4	2.375 V	2.625 V
Microchip Technology SY89540UMY-TR	44-MLF®, 44-VFQFN Exposed Pad	85 °C	-40 °C	Surface Mount	Single Supply	44-MLF® (7x7)	1	Crosspoint Switch	1	4:4	2.375 V	2.625 V

Catalog

Key Features

• + Provides crosspoint switching between any input pairs to any output pair

• + Patent pending, channel-to-channel isolation design provides superior crosstalk performance

• + Guaranteed AC performance over temperature and voltage:

• + <480ps propagation delay

• + <120ps rise/fall time

• + <30ps output-to-output skew

• + 95fs RMS phase jitter (typ.)

• + <0.7psRMS crosstalk-induced jitter

• + Patent-pending 50O input termination, extended CMVR, and VT pin accepts DC- and AC-coupled differential inputs

• + 350mV LVDS output swing

• + Power supply 2.5V ±5%

• + -40°C to +85°C temperature range

• + Available in 44-pin (7mm x 7mm) QFN package

• + Pb-Free Green package

Description

The SY89540U is a low-jitter, low skew, high-speed 4x4 crosspoint switch optimized for precision telecom and enterprise server/storage distribution applications. The SY89540U guarantees data-rates up to 3.2Gbps over temperature and voltage.The SY89540U differential input includes Micrel's unique, 3-pin input termination architecture that directly interfaces to any differential signal (AC- or DC-coupled) as small as 100mV (200mVpp) without any level shifting or termination resistor networks in the signal path. The LVDS compatible outputs maintain extremely fast rise/fall times guaranteed to be less than 120ps.The SY89540U features a patent-pending isolation design that significantly improves on channel-tochannel crosstalk performance.The SY89540U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range (-40°C to +85°C). The SY89540U is part of Micrel's high-speed, Precision Edge® product line.