ICS91719 datasheet(1/10 Pages) ICST

tên linh kiện	ICS91719

Giải thích chi tiết về linh kiện	Low EMI, Spread Modulating, Clock Generator

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nhà sản xuất	ICST [Integrated Circuit Systems]

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1 / 10 page

Integrated

Circuit

Systems, Inc.

ICS91719

0506D—08/16/04

Block Diagram

Pin Configuration

16-pin TSSOP

Features:

•

ICS91719 is a Spread Spectrum Clock targeted for

Mobile PC and LCD panel applications. Generates an

EMI optimized clock signal (EMI peak reduction of 7-

14 dB on 3rd-19th harmonics) through use of Spread

Spectrum techniques.

•

ICS91719 focuses on the lower input frequency

range of 14.318 to 80.00 MHz with a spread

modulation of 20kHz to 40kHz.

Specifications:

•

Supply Voltages: VDD = 3.3V ±0.3V

•

Frequency range: 14.318 MHz

≤ Fin ≥ 80 MHz

•

Cyc to Cyc jitter: <150ps

•

Output duty cycle 40/60% (worst case)

•

Guarantees +85°C operational condition.

•

16-pin TSSOP package 4.4mm body (173mils), 0.65

mm pitch

•

14.318 MHz crystal input or reference clock input

•

27MHz, 48MHz and 66MHz reference clock input

Low EMI, Spread Modulating, Clock Generator

Notes:

** Internal pull-down

^ Internal pull-up

CLK

CL

REFOUT

KOUT

OUT

PD#

SPREAD#

CLKIN

PLL1

Spread

Spectr

Spectrum

um

SD

SDAT

REF_STOP

A

SCLK

FS_IN0:1

Control

Logic

Config.

Reg.

REF Voltage Select Functionality

Input Select Functionality

GND

116 VDDREF

X1 _CLKIN

215 VDDREF_SEL_2.5V/3.3V# ^

X2

314 REF_OUT/VDDREF_SEL_1.8V * *

GNDA

413 **REF_Stop

VDDA

512 ^PD#

VDD

611 SCLK

GND

710 SDATA

* * CLKOUT/FS_IN0

89 ^SPREAD_ENABLE/FS_IN1

Pin14

Pin15

REF Voltage

0

N/A

0

1

1.8V

1

0

2.5V

1

3.3V

FS_IN1

FS_IN0

MHZ

Default Spread %

0

14.318 in 27.00 out

-0.8% downspread

0

1

14.318 in/out

-0.8% downspread

1

0

27.00 in/out

-0.8% downspread

1

48.00 in/out

66.66 in/out

-0.8% downspread

Số phần tương tự - ICS91719

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Renesas Technology Corp	ICS91719	307Kb / 11P	Low EMI, Spread Modulating, Clock Generator 2019

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