FS7145 datasheet(1/15 Pages) AMI

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Giải thích chi tiết về linh kiện	Programmable Phase-Locked Loop Clock Generator

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AMI Semiconductor - Rev. 3.0

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FS7140-01 / FS7140-01g / FS7145 Programmable Phase-Locked Loop Clock Generator Data Sheet

1.0 Features

• Extremely flexible and low-jitter phase-locked loop (PLL)

frequency synthesis

• No external loop filter components needed

• 150MHz CMOS or 340MHz PECL outputs

• Completely configurable via I2C™-bus

• Up to four FS7140 or FS7145 can be used on a single

I2C-bus

• 3.3V operation

• Independent on-chip crystal oscillator and external

reference input

• Very low "cumulative" jitter

1

16

2

3

4

5

6

7

8

15

14

13

12

11

10

9

IPRG

1

16

2

3

4

5

6

7

8

15

14

13

12

11

10

9

n/c

VSS

REF

n/c

VDD

CLKP

CLKN

SCL

SDA

ADDR0

VSS

XIN

XOUT

ADDR1

VDD

1

16

2

3

4

5

6

7

8

15

14

13

12

11

10

9

IPRG

n/c

VSS

REF

SYNC

VDD

CLKP

CLKN

SCL

SDA

ADDR0

VSS

XIN

XOUT

ADDR1

VDD

Figure 1: Pin Configuration:

16-pin (0.150”) SOIC, 16-pin (5.3mm) SSOP

2.0 Description

The FS7140 / FS7145 is a monolithic CMOS clock gen-

erator/regenerator IC designed to minimize cost and

component count in a variety of electronic systems. Via the I2C-

bus interface, the FS714x can be adapted to many clock

generation requirements.

The length of the reference and feedback dividers, their fine

granularity, and the flexibility of the post divider make the

FS714x the most flexible stand-alone phase-locked loop (PLL)

clock generator available.

FS7140 / FS7145

Crystal

Oscillator

XOUT

XIN

Reference

Divider

(N

R)

Phase-

Frequency

Detector

Charge

Pump

UP

DOWN

REF

Feedback

Divider (N

F)

Loop

Filter

I2C

Interface

SCL

SDA

ADDR[1:0]

Registers

IPRG

Post

Divider

(N

Px)

Voltage

Controlled

Oscillator

CMOS/PECL

Output

CLKN

CLKP

SYNC

(FS7145 only)

Sync

Control

Figure 2: Device Block Diagram

3.0 Applications

• Precision frequency synthesis

• Low-frequency clock multiplication

• Video line-locked clock generation

• Laser beam printers (FS7145)

Số phần tương tự - FS7145

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
ON Semiconductor	FS7145-01-XTD	485Kb / 19P	Programmable Phase-Locked Loop Clock Generator May 2008 ??Rev. 5
	FS7145-01-XTD	485Kb / 19P	Programmable Phase-Locked Loop Clock Generator May 2008 ??Rev. 5
	FS7145-01-XTD	300Kb / 17P	Programmable Phase-Locked Loop Clock Generator October, 2011 ??Rev. 7
	FS7145-01-XTP	485Kb / 19P	Programmable Phase-Locked Loop Clock Generator May 2008 ??Rev. 5
	FS7145-01-XTP	485Kb / 19P	Programmable Phase-Locked Loop Clock Generator May 2008 ??Rev. 5

More results

Mô tả tương tự - FS7145

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
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ON Semiconductor	FS7145-01-XTD	485Kb / 19P	Programmable Phase-Locked Loop Clock Generator May 2008 ??Rev. 5
ON Semiconductor	FS714X	485Kb / 19P	Programmable Phase-Locked Loop Clock Generator May 2008 ??Rev. 5
Cypress Semiconductor	CY22801	602Kb / 23P	Universal Programmable Clock Generator (UPCG) Integrated phase-locked loop (PLL)
ON Semiconductor	FS7140	300Kb / 17P	Programmable Phase-Locked Loop Clock Generator October, 2011 ??Rev. 7

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