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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-to-channel 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.
All support documentation can be found on Micrel’s web site at www.micrel.com.
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- 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:
- DC-to-3.2Gbps throughput
- <480ps propagation delay
- <120ps rise/fall time
- <30ps output-to-output skew
- Ultra-low jitter design:
- <1ps(rms) random jitter
- <10ps(pp) deterministic jitte
- <10ps(pp) total jitter (clock)
- <0.7ps(rms) crosstalk induced jitter
- Patent pending 50&Mac189; 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) MLF™ package
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