SY89113U Series

Catalog

CLOCK BUFFER, FANOUT, 1 GHZ TO 12 OUTPUTS, 2.375 V TO 2.625 V, 44 PINS, QFN-EP

Part	Package / Case	Frequency - Max [Max]	Differential - Input:Output [custom]	Differential - Input:Output [custom]	Ratio - Input:Output	Mounting Type	Input	Type	Number of Circuits	Operating Temperature [Max]	Operating Temperature [Min]	Output	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]
Microchip Technology SY89113UMY	44-MLF®, 44-VFQFN Exposed Pad	1 GHz			2:12	Surface Mount	CML, CMOS, HSTL, LVDS, LVPECL, TTL	Fanout Buffer (Distribution), Multiplexer	1	85 °C	-40 °C	LVDS	44-MLF® (7x7)	2.375 V	2.625 V

Catalog

Key Features

• + Selects between 1 of 2 inputs, and provides 12 precision, low skew LVDS output copies

• + DC to >1GHz throughput

• + <975ps propagation delay CLK0-to-Q

• + <250ps rise/fall time

• + <25ps output-to-output skew

• + 130fsRMS phase jitter (typ.)

• + 0.7psRMS crosstalk-induced jitter

• + Unique, patent-pending 2:1 input MUX provides superior isolation to minimize channel-to-channel crosstalk

• + CLK0 input features a unique, patent-pending input termination and VT pin that accepts AC- and DC-coupled inputs (CML, LVPECL, LVDS)

• + Single-ended: TTL/CMOS (including 3.3V logic), LVPECL

• + Differential: LVPECL, LVDS, CML, HSTL

• + 325mV LVDS-compatible output swing

• + Power supply: 2.5V ±5%

• + Industrial temperature range -40°C to +85°C

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

Description

The SY89113U is a 2.5V low jitter, low skew, 1:12 LVDS fanout buffer optimized for precision telecom and enterprise server distribution applications. The input includes a 2:1 MUX for clock switchover applications. Unlike other multiplexers, this input includes a unique isolation design that minimizes channel-to-channel crosstalk. The SY89113U distributes clock frequencies from DC to >1GHz guaranteed over temperature and voltage. The SY89113U incorporates a synchronous output enable (EN) so that the outputs will only be enabled/disabled when they are already in the LOW state. CLK0 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.CLK1 differential input includes a new version of unique, Any-Input architecture that directly interfaces with single-ended TTL/CMOS logic (including 3.3V logic), single-ended LVPECL, differential (AC- or DC-coupled) LVDS, HSTL, CML, and LVPECL logic levels as small as 200mV (400mVPP). CLK1 input requires external termination.LVDS output swing 325mV into 100Ω with extremely fast rise/fall time guaranteed to be less than 250ps.The SY89113U operates from a 2.5V±5% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89113U is part of Micrel's high-speed, Precision Edge® product line.