DATA BULLETIN
MX102
Features
•
•
•
•
Low Signal Level Input of 10mVrms
Wide Signal Frequency Range from 17Hz to 13kHz
On-Chip Gain Amplifier
Digital Output Signal (f
IN
x 4)
•
•
•
•
•
•
•
Autocorrelating
Signal Processor
Applications
Medical Instruments
Sonar Detection
Remote Signaling
Pagers
Mobile Radio
Slow Data Rate Communication
Tone Detection
•
Divided-Down Clock Output
•
Low Supply Voltage Operation of 2.5 V
•
Low Current Drain
SIGNAL
BIAS
SIGNAL
IN
-
+
DELAY
48-BIT
COMPARE
LOGIC
INTERPOLATE
DELAY
24-BIT
OUTPUT
[4 x SIGNAL
OUTPUT
LOGIC
IN]
V
DD
DELAY
48-BIT
COMPARE
LOGIC
INTERPOLATE
V
SS
AUTOCORRELATION
PROCESS
DELAY
24-BIT
CLOCKS
XTAL/CLOCK
XTAL/CLOCK
GENERATOR/
DIVIDER
CLOCK
Output
6
BUFCLK
XTAL
The MX102 is a single-chip device to extract single periodic signals from very high random-noise environments.
Using patented autocorrelation techniques the MX102 will enhance the input signal's signal-to-noise ratio by as much as
8.5dB and provide a digital output signal centered at four times (x4) the input frequency.
The amplitude of non-periodic components of the signal is substantially reduced. The patented autocorrelator compares
the incoming signal to itself; the more elements of the waveform that are seen as periodic, the higher the energy at the
microcircuit output.
The MX102 cascades two autocorrelators, each one improving the signal-to-noise ratio
With a random noise input the output will swing rail-to-rail at random (peak-limited). The input/output signal delay is fixed
by the choice of clock frequency and the length of the internal register. The MX102 will operate at supply voltages of
between 2.5 volts and 5.5 volts and with Xtal/clock frequencies from 20kHz to 2.5MHz. Using various Xtal/clock inputs the
device can be set to accept input signal frequencies, in bands, from 17.0Hz to 13.0kHz.
Two uncommitted clock outputs are available: one to supply a 'divided-down' Xtal/clock frequencies and the second is a
buffered output for use in external and peripheral functions.
This MX102 is available in the following package styles: 16-pin SOIC (MX102DW) and 16-pin CDIP (MX102J).
© 1997 MX•COM,INC.
www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc.# 20480095.003
4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
CMLMICRO [ CML MICROCIRCUITS ]
