SY89841 Series

Catalog

PRECISION 2:1 LVDS MUX W/ RPE & FSI 16 VQFN 3X3X1.00MM TUBE ROHS COMPLIANT: YES

Part	Package / Case	Circuit [custom]	Circuit [custom]	Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Independent Circuits	Voltage Supply Source	Mounting Type
Microchip Technology SY89841UMG	16-VFQFN Exposed Pad	2:1	1	Multiplexer	85 °C	-40 °C	2.375 V	2.625 V	1	Single Supply	Surface Mount
Microchip Technology SY89841UMG
Microchip Technology SY89841UMG-TR	16-VFQFN Exposed Pad	2:1	1	Multiplexer	85 °C	-40 °C	2.375 V	2.625 V	1	Single Supply	Surface Mount
Microchip Technology SY89841UMG-TR

Catalog

Key Features

• + Selects between two sources, and provides a glitch-free, stable LVDS output

• + wide operating frequency: 1kHz to >1.5GHz

• + <870ps In-to-Out tpd

• + <150ps tr/tf

• + Unique patent-pending input isolation design minimizes crosstalk

• + Fail-safe input prevents oscillations

• + <1psRMS random jitter

• + <1psRMS cycle-to-cycle jitter

• + <10psPP total jitter (clock)

• + <0.7psRMS MUX crosstalk induced jitter

• + Unique patent-pending input termination and VT pin accepts DC-coupled and AC-coupled inputs (CML, PECL, LVDS)

• + 350mV LVDS output swing

• + 2.5V +5% power supply

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

• + Available in 16-pin (3mm x 3mm) MLF® package

Description

The SY89841U is a low jitter LVDS, 2:1 input multiplexer (MUX) optimized for redundant source switchover applications. Unlike standard multiplexers, the SY89841U unique 2:1 Runt Pulse Eliminator (RPE) MUX prevents any short cycles or "runt" pulses during switchover. In addition, a unique Fail-safe Input protection prevents metastable conditions when the selected input clock fails to a DC voltage (voltage between the pins of the differential input drops below 100mV).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 (200mVpp) without any level shifting or termination resistor networks in the signal path. The outputs are 350mV, LVDS with fast rise/fall times guaranteed to be less than 150ps.The SY89841U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89841U is part of Micrel's high-speed, Precision Edge® product line.