FS6012-02 查看數據表（PDF） - AMI Semiconductor

零件编号

产品描述 (功能)

生产厂家

FS6012-02

I2C Digital Audio/Video Clock Generator IC

AMI Semiconductor 

     X  T

)6

,&™ 'LJLWDO 9LGHR$XGLR &ORFN *HQHUDWRU ,&

August 1998

1.0 Features

• Triple phase-locked loop (PLL) device provides exact

ratiometric derivation of Audio, Processor, and Utility

Clocks

• I2C™-bus interface for Audio and Utility Clock

frequency selection

• I2C™-bus/board programmable Processor Clock

frequency selection

• On-chip tunable voltage-controlled crystal oscillator

(VCXO) allows precise system frequency tuning

• Tunable Audio Clock frequencies for undetectable

resynchronization of audio and video streams

• Custom frequency selections available - contact your

local AMI Sales Representative for more information

2.0 Description

The FS6012-02 is a monolithic CMOS clock generator IC

designed to minimize cost and component count in digital

video/audio systems.

At the core of the FS6012-02 is circuitry that implements

a voltage controllable crystal oscillator when an external

resonator is attached. The circuitry allows device fre-

quencies to be precisely adjusted for use in systems that

have frequency matching requirements, such as digital

satellite receivers.

Three high-resolution phase-locked loops independently

generate three other selectable frequencies derived from

the VCXO frequency. These clock frequencies are re-

lated to the VCXO frequency and to each other by exact

ratios. The locking of all the output frequencies together

can eliminate unpredictable artifacts in video systems

and reduces electromagnetic interference (EMI) due to

frequency harmonic stacking.

Figure 1: Block Diagram

PSEL0

PSEL1

Processor

Clock PLL

XTUNE

XIN

XOUT

ADDR

SCL

SDA

VCXO

I2C-bus

Interface

Audio

Clock PLL

Utility

Clock PLL

FS6012

PCLK

ACLK

UCLK

CLK_27

Figure 2: Pin Configuration

SCL 1

SDA 2

ADDR 3

VSS 4

XIN 5

XOUT 6

XTUNE 7

VDD 8

16 CLK27

15 ACLK

14 VDD

13 UCLK

12 PCLK

11 VSS

10 PSEL0

9 PSEL1

16-pin (0.150”) SOIC

I2C is a licensed trademark of Philips Electronics N.V. Windows is a registered trademark of Microsoft Corporation. American Microsystems, Inc. reserves the right to change the detail specifications

as may be required to permit improvements in the design of its products.

,62

8.19.98

Share Link: