SC4201(2004) 데이터 시트보기 (PDF) - Semtech Corporation

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SC4201
(Rev.:2004)

Multi-Phase Link Controller

Semtech Corporation 

SC4201

POWER MANAGEMENT

Pin Configuration

Top View

(MSOP-8)

Ordering Information

Part Number (1)

SC4201IMSTRT(2)

SC4201EVB

Package

MSOP-8

Evaluation Board

Notes:

(1) Only available in tape and reel packaging. A reel

contains 2500 devices.

(2) Lead free product. This product is fully WEEE and

RoHS compliant.

Pin Descriptions

Pin

Pin Name Pin Function

1

RT

Oscillator frequency is configured by connecting resistor R from RT to ground. Values for R can

be selected to provide desired 3 phase or 4 phase output frequencies.

2

VDD

The power input connection for the device.

3

SYNC

SYNC is a positive edge triggered input with a threshold of ~VDD/3. SYNC should be grounded

when not required or connected to an external synchronization clock with frequency higher than

the on board oscillator frequency (with respect to internal clock). SYNC frequency = phase

frequency times number of phases 3 or 4.

4

A

Logic level output clock. Phase "A", totem-pole type.

5

B

Logic level output clock. Phase "B", totem-pole type.

6

C

Logic level output clock. Phase "C", totem-pole type.

7

D

Logic level output, totem-pole type, lock and phase selection pin.

Default operation 4 phase/2 phase (90°/180°). Tie D to VDD to select 3 phase operation

through A, B and C 120° out of phase.

8

GND

Reference ground and power ground for all functions.

Marking Information

yyww = Datecode (Example: 0012)

xxxx = Semtech Lot # (Example: E901

xxxx =

01-1)

 2004 Semtech Corp.

3

www.semtech.com

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