SY89465 Series

Catalog

VQFN 2:1 RPE MUX W/ 1:10 LVDS FANOUT ROHS COMPLIANT: YES

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Output	Input	Number of Circuits	Supplier Device Package	Ratio - Input:Output [custom]	Ratio - Input:Output [custom]	Type	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Frequency - Max [Max]
Microchip Technology SY89465UMY	2.375 V	2.625 V	44-MLF®, 44-VFQFN Exposed Pad	LVDS	CML, LVDS, PECL	1	44-MLF® (7x7)	10	2	Multiplexer	85 °C	-40 °C	Surface Mount	2 GHz
Microchip Technology SY89465UMY-TR	2.375 V	2.625 V	44-MLF®, 44-VFQFN Exposed Pad	LVDS	CML, LVDS, PECL	1	44-MLF® (7x7)	10	2	Multiplexer	85 °C	-40 °C	Surface Mount	2 GHz
Microchip Technology SY89465UMG TR	2.375 V	2.625 V	44-MLF®, 44-VFQFN Exposed Pad	LVDS	CML, LVDS, PECL	1	44-MLF® (7x7)	10	2	Multiplexer	85 °C	-40 °C	Surface Mount	2 GHz

Catalog

Key Features

• + Selects between two sources, and provides 10 precision LVDS copies

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

• + <1200ps In-to-Out tpd

• + <220ps tr/tf

• + Unique, patent-pending input isolation design minimizes adjacent channel crosstalk

• + Fail-Safe Input prevents oscillations

• + Ultra-low jitter design:

• + 183fsRMS phase jitter (typical)

• + <0.7psRMS MUX crosstalk-induced jitter

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

• + 325mV LVDS output swing

• + 2.5V ±5% supply voltage

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

• + Output enable

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

Description

The SY89465U is a low-jitter, 1:10 LVDS fanout buffer with a 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications. Unlike standard multiplexers, the SY89465Us 2:1 Runt Pulse Eliminator (RPE) MUX prevents any short cycles or "runt" pulses during switchover. In addition, a unique Fail-Safe Input (FSI) 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, 3-pin internal 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 LVDS-compatible with fast rise/fall times guaranteed to be less than 220ps.The SY89465U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89465U is part of Micrel's high-speed, Precision Edge® product line.