FS6182
VCXO Clock Generator IC
1.0
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Features
2.0
Description
Three output clock frequencies
On-chip tunable voltage-controlled crystal oscillator
(VCXO) allows precise system frequency tuning
Wide crystal “pulling” range (typically 300ppm)
VCXO tuning range from 0-3 volt
3.3V supply voltage (contact factory for 5V)
Small circuit board footprint (8-pin 0.150″ SOIC)
Custom frequency selections available - contact your
local AMI Sales Representative for more information
Figure 1: Pin Configuration
CLKA
GND
XIN
XOUT
1
8
The FS6182 is a monolithic CMOS clock generator IC
designed to minimize cost and component count in digital
video/audio systems.
At the core of the FS6182 is circuitry that implements a
voltage-controlled crystal oscillator 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.
A high-resolution phase-locked loop generates three out-
put clocks (CLKA, CLKB, and CLKC) through an array of
post-dividers. All frequencies are ratiometrically derived
from the VCXO frequency. The locking of all the output
frequencies together can eliminate unpredictable artifacts
in video systems.
XTUNE
VDD
CLKC
CLKB
FS6182
2
3
4
7
6
5
Table 1: Crystal / Output Frequencies
DEVICE
FS6182-01
f
XIN
(MHz)
13.500
CLKA
(MHz)
27.000
CLKB
(MHz)
54.000
CLKC
(MHz)
13.500
8-pin (0.150″) SOIC
NOTE: Contact AMI for custom PLL frequencies and 5 volt operation
Figure 2: Block Diagram
XIN
VCXO
XOUT
XTUNE
DIVIDER
ARRAY
PLL
CLKA
CLKB
CLKC
FS6182
This document contains information on a new product. Specifications and information herein are subject to change without notice.
ISO9001
2.27.02
ONSEMI [ ON SEMICONDUCTOR ]
