Datasheet > 11640-825

11640-825

更新时间： 2023-01-03 08:05:52

品牌	Logo	应用领域
AMI		光电二极管
页数	文件大小	规格书
5页	328K
描述
Clock Generator, 27MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8

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11640-825 数据手册

FS6128-04/FS6128-04g PLL Clock Generator IC With VCXO Data Sheet

1.0 Features

• Phase-locked loop (PLL) device synthesizes output clock

frequency from crystal oscillator or external reference

clock

• Very low phase noise PLL

• Use with “pullable” 14pF crystals – no external padding

capacitors required

• On-chip tunable voltage-controlled crystal oscillator

(VCXO) allows precise system frequency tuning

• Typically used for generation of MPEG-2 decoder clock

• 3.3V supply voltage

• Small circuit board footprint (8-pin 0.150” SOIC)

• Custom frequency selections available - contact your local

AMIS Sales Representative for more information

2.0 Description

The FS6128 is a monolithic CMOS clock generator IC

designed to minimize cost and component count in digital

video/audio systems.

A high-resolution phase-locked loop generates an output

clock (CLK) through a post-divider. The CLK frequency is

ratiometrically derived from the VCXO frequency. The

locking of the CLK frequency to other system reference

frequencies can eliminate unpredictable artifacts in video

systems and reduce electromagnetic interference (EMI) due

to frequency harmonic stacking.

At the core of the FS6128 is circuitry that implements a

voltage-controlled crystal oscillator (VCXO) when an

external resonator (nominally 13.5MHz) is attached. The

VCXO allows device frequencies to be precisely adjusted

for use in systems that have frequency matching

requirements, such as digital satellite receivers.

Table 1: Crystal / Output Frequencies

Device

f_XIN(MHz)

CLK (MHz)

FS6128-04

13.500

27.000

Note: Contact AMIS for custom PLL frequencies.

Figure 1: Pin Configuration

Figure 2: Block Diagram

AMI Semiconductor

www.amis.com

12 3 4 5

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