SY89200U Series

Catalog

CLOCK BUFFER, DIVIDER, FANOUT 1.5 GHZ TO 8 OUTPUTS, 2.375 V TO 2.625 V, 32 PINS, QFN-EP

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Ratio - Input:Output	Number of Circuits	Package / Case	Output	Frequency - Max [Max]	Input	Supplier Device Package	Differential - Input:Output [custom]	Differential - Input:Output [custom]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Type
Microchip Technology SY89200UMG	2.375 V	2.625 V	1:8	1	32-VFQFN Exposed Pad	LVDS	1.5 GHz	CML, LVDS, PECL	32-QFN (5x5)			Surface Mount	85 °C	-40 °C	Divider, Fanout Buffer (Distribution), Multiplexer

Catalog

Key Features

• + Three low-skew LVDS output banks with programmable ÷1, ÷2 and ÷4 divider options

• + Three independently programmable output banks

• + Accepts a clock frequency up to 1.5GHz

• + <900ps IN-to-OUT propagation delay

• + <150ps rise/fall time

• + <50ps bank-to-bank phase offset

• + Ultra-low jitter design:

• + <1psRMS random jitter

• + <10psPP total jitter (clock)

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

• + LVDS-compatible outputs

• + CMOS/TTL-compatible output enable (EN) and divider select control

• + 2.5V ±5% power supply

• + -40°C to +85°C temperature range

• + Available in 32-pin (5mm x 5mm) QFN package

Description

The SY89200U is a 2.5V precision, high-speed, integrated clock divider and LVDS fanout buffer capable of handling clocks up to 1.5GHz. Optimized for communications applications, the three independently controlled output banks are phase matched and can be configured for pass through (÷1), ÷2 or ÷4 divider ratios.The differential input includes Micrel's unique, 3-pin input termination architecture that allows the user to interface to any differential signal path. The low-skew, low-jitter outputs are LVDS-compatible with extremely fast rise/fall times guaranteed to be less than 150ps.The EN (enable) input guarantees that the ÷1, ÷2 and ÷4 outputs will start from the same state without any runt pulse after an asynchronous master rest (MR) is asserted. This is accomplished by enabling the outputs after a four-clock delay to allow the counters to synchronize.The SY89200U is part of Micrel's Precision Edge® product family.