FS6127 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – VCXO CLOCK GENERATOR IC

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February 1999
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1.0 Features
• On-chip tunable voltage-controlled crystal oscillator
circuitry (VCXO) allows precise system frequency
tuning (pull range typically 300ppm)
• VCXO tuning range: 0-3V
• Uses inexpensive fundamental-mode crystals
• Integrated phase-locked loop (PLL) multiplies VCXO
frequency to the higher system frequencies needed
• 5V supply voltage (contact factory for 3.3V)
• Small circuit board footprint (8-pin 0.150″ SOIC)
• Custom frequency selections available - contact your
local AMI Sales Representative for more information
2.0 Description
The FS6127 is a monolithic CMOS clock generator IC
designed to minimize cost and component count in digital
video/audio systems.
At the core of the FS6127 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 the output
clock frequency (CLK). The CLK frequency is phase-
locked and frequency-locked to the VCXO frequency.
Figure 1: Pin Configuration
XIN ¹
VDD ²
XTUNE ³
VSS ⁴
8 _XOUT
7 _VSS
6 _VDD
5 _CLK
8-pin (0.150″) SOIC
Table 1: Crystal / Output Frequencies
DEVICE
FS6127-01
fXIN (MHz)
13.5
CLK (MHz)
27
NOTE: Contact AMI for custom PLL frequencies and 3.3 volt versions
Figure 2: Block Diagram
XIN
XOUT
XTUNE
VCXO
PLL
CLK
FS6127
This document contains information on a new product. Specifications and information herein are subject to change without notice.
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