Datasheet MX102J, MX102DW Datasheet (MX COM)

DATA BULLETIN

MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

Autocorrelating

Si

g

nal Processor

Features Applications

•

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)

•

Divided-Down Clock Output

•

Low Supply Voltage Operation of 2.5 V

•

Low Current Drain

•

Medical Instruments

•

Sonar Detection

•

Remote Signaling

•

Pagers

•

Mobile Radio

•

Slow Data Rate Communication

•

Tone Detection

SIGNAL IN

SIGNAL BIAS

AUTOCORRELATION PROCESS

OUTPUT [4 x SIGNAL IN]

Output

CLOCKS

XT AL

V

DD

V

SS

XTAL/CLOCK

GENERAT OR/

DIVIDER

-

+

DELAY 48-BIT

COMPARE

LOGIC

DELAY 48-BIT

INTERPOLATE

OUTPUT

LOGIC

DELAY 24-BIT

COMPARE

LOGIC

DELAY 24-BIT

XT AL/CLOCK

CLOCK

6

BUFCLK

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).

Autocorrelating Signal Processor 2 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

CONTENTS

Section Page

1. Block Diagram.................................................................................................................................. 3

2. Signal List......................................................................................................................................... 4

3. External Components...................................................................................................................... 5

4. General Description......................................................................................................................... 6

4.1 Signal........................................................................................................................................................ 6

4.2 Input Frequency Range.............................................................................................................................6

5. Performance Specification.............................................................................................................. 8

5.1 Electrical Performance..............................................................................................................................8

5.2 Packaging ................................................................................................................................................ 10

MX•COM, Inc. reserves the right to change specifications at any time and without notice.

Autocorrelating Signal Processor 3 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

1. Block Diagram

SIGNAL IN

SIGNAL BIAS

AUTOCORRELATION PROCESS

OUTPUT [4 x SIGNAL IN]

Output

CLOCKS

XTAL

V

DD

V

SS

XTAL/CLOCK

GENERATOR/

DIVIDER

-

+

DELAY 48-BIT

COMPARE

LOGIC

DELAY 48-BIT

INTERPOLATE

OUTPUT

LOGIC

DELAY 24-BIT

COMPARE

LOGIC

DELAY 24-BIT

XTAL/CLOCK

CLOCK

6

BUFCLK

Figure 1: Device Block Diagram

Autocorrelating Signal Processor 4 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

2. Signal List

Packages Signal Description

DW/J Name Type

1 Signal In input The inverting input to the analog amplifier/comparator. Used with the

Signal Bias pin; external coupling components are required. See Figure 2

3 Signal

Bias

output The output of the analogue amplifier/comparator. Do not load this pin with

peripheral circuitry; there is no drive capacity for off-chip signaling. The feedback resistor should be not less than 200kΩ. See Figure 2.

4V

DD

power Positive supply rail. A single, stable power supply is required. Note that

this device has two V

DD

pins; this input is positioned to prevent cross-talk,

either or both may be connected to the host circuit's supply line. Do not attempt to draw current from either V

DD

pin.

5 BUFCLK output Buffered inverter oscillator digital output. May be used as test point to

align clock frequency or to drive other circuitry.

6

XTAL

output The output of the on-chip clock oscillator inverter.

8 Xtal/Clock input

The input to the on-chip clock oscillator inverter; this may be a Xtal, resonator or clock pulse input. The selection of this frequency will affect the operational input signal bandwidth (and output frequency) of this device; refer to Table 4. Note that the choice of V

DD

will determine the

maximum Xtal/clock frequency and hence the maximum useable signal input frequency. Operation of this microcircuit without an active Xtal or clock input may cause device damage. A clock pulse input is fed directly into this pin; Xtal/clock components are not required. See Table 2.

9V

SS

power Negative Supply

11 CLK ÷ 6 output A squarewave output clock signal at the rate of Clock/6; provided for

peripheral and test purposes.

13 OUTPUT output

(fOUT = 4 x fSIGNAL IN). The auto-correlated output signal at four times (x 4) the input signal (see Figure 3).

There is a time delay between input and output signals (see Specifications).

16 V

DD

power

Positive supply rail. A single, stable power supply is required. Note that this device has two VDD pins; either or both may be connected

to the host circuit's supply line. Do not attempt to draw current from either V

DD

pin.

The choice of V

DD

will determine the maximum Xtal/clock frequency and

hence the maximum useable signal input frequency (see Figure 4).

2, 7, 10, 12, 14, 15 N/C No internal connection. Leave open circuit

Table 1: Signal List

Autocorrelating Signal Processor 5 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

VDD (V) Max. Xtal/Clock Freq. (MHz)

2.5 0.625

3.0 1.0

5.0 2.5

Table 2: Maximum Usable Xtal/Clock Frequencies

3. External Components

V

DD

V

DD

V

DD

C5

R1

C1

V

SS

1 2 3 4 5 6 7 8

16 15 14 13 12

11

10

9

SIGNAL IN

BUFCLK

SIGNAL INPUT

OUTPUT

(f = 4 x SIGNAL IN)

x

SIGNAL BIAS

CLOCK

OUTPUT

6

MX102

XTAL

XTAL/CLOCK

6

8

C3

C2

C4

X

1

R2

XTAL

XTAL/CLOCK

Figure 2: Recommended External Components

R1

2.2M

Ω

R2

1.0M

Ω

C1 0.01µF C2 Note 1 47.0pF -see below C3 Note 1 47.0pF -see below C4 Note 2 5 - 65pF -see below C5 1.0µF X1 560kHz resonator

X1 range 20kHz to 2.5MHz

Table 3: Recommended External Components

Recommended External Component Notes:

1. Values of capacitors C2 and C3 should be reduced for higher Xtal frequencies and/or lower supply voltages (V

DD

).

2. C4 is suggested for frequency setting when using a resonator; when a Xtal is used C4 is omitted.

Autocorrelating Signal Processor 6 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

4. General Description

4.1 Signal

f

SIGNAL IN

f

OUT

=4xf

SIGNAL IN

SIGNAL OUT

Frequency

Level

SIGNAL IN

Figure 3: MX102 Input/Output Relationships

Note:

1. The frequency of the output signal is four times (x4) that of the input signal.

4.2 Input Frequency Range

The MX102 has a wide frequency range, but care must be taken to choose the Xtal frequency appropriate for your application.

Xtal/Clock Frequency

(kHz)

Input Freq. (Hz) BW (Hz)

Min. Max.

20 17 105 88 100 88 526 443 200 166 1052 886 300 250 1579 1329 400 333 2105 1772 500 416 2632 2216 560 467 2947 2480 600 500 3158 2658 700 583 3684 3101 800 667 4210 3543 900 750 4737 3987

1000 833 5263 4430 2000 1667 10526 8859 2500 2083 13157 11074

Table 4: Input Signal Ranges vs Xtal/Clock Frequency

Autocorrelating Signal Processor 7 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

0

2000

4000

6000

8000

10000

12000

14000

Maximum Input Frequency (Hz)

Minimum Input Frequency (Hz)

Input Signal Bandwidth (Hz)

Maximum Clock Limit at V

DD

=2.5V

Maximum Clock Limit at V

DD

=3.0V

For V

DD

=5.0V

Input Signal Frequency (Hz)

Xtal/Clock Frequency (kHz)

0 500 1000 1500 2000 2500

Minimum Input Frequency =

Xtal/Clock Frequency (Hz)

1200

Maximum Input Frequency =

Xtal/Clock Frequency (Hz)

190

Figure 4: Input Signal Ranges vs Xtal/Clock Frequency

Effective Output Signal-to-Noise Ratio (dB)

Input Signal = 2.7kHz 20mVrms Xtal/Clock Frequency 500kHz V

DD

=5.0V

Input Signal-to-Noise Ratio (dB)

1

2

3

4

5

6

7

8

9

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

Figure 5: Enhancement of Signal-To-Noise Ratio

Note:

1. The graph shown in Figure 5 illustrates the signal-to-noise enhancement that can be obtained, under varying input conditions, from the MX102.

Autocorrelating Signal Processor 8 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

5. Performance Specification

5.1 Electrical Performance

Absolute Maximum Ratings

Exceeding these maximum ratings can result in damage to the device.

General Min. Max. Units

Supply Voltage -0.3 7.0 volts V Input Voltage at any pin -0.3 (VDD+0.3 volts) V Current

V

DD

-30 30 mA

V

SS

-30 30 mA

Any other pins -20 20 mA Maximum Device Dissipation 100 mW Operating Temperature -40° 85 °C Storage Temperature -40° 125 °C

Operating Limits

Correct operation of the device outside these limits is not implied.

Min. Typ. Max. Units

V

DD

2.5 3.3/5.0 5.5 V

Xtal/Clock 20 2500 kHz Operating Temperature -40 85 °C

Autocorrelating Signal Processor 9 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

Operating Characteristics

For the following conditions unless otherwise specified: V

DD

= 5.0V, T

AMB

= 25°C

Xtal/Clock = 560kHz, Input Test Signal = 200mV

RMS

Notes Min. Typ. Max Units

Static Values

Supply Current - 1.0 2.5 mA

2 - 4.0 - mA Logic ‘1’ Level 80% - - V Logic ‘0’ Level - - 20% V Digital Output Impedance - 4.0 10.0

k

Ω

Dynamic Values

Signal Input 3 20.0 - 1000 mV

RMS

Analog (Input) Amplifier Gain 4 20.0 - - dB

5 9.0 - - dB

6 10.0 - - dB Recommended Input Signal Duty Cycle Ratio 35 50 - % Frequency Out/Frequency In Ratio 4.0 - 4.0 % Maximum Xtal/Clock Frequency 1 2.5 - - MHz Minimum Xtal/Clock Frequency 20.0 kHz Frequency Input Range

Xtal/Clock = 560kHz 7 500 - 3000 Hz

Table 4 1/1200 1/190 Xtal/Clock Input to Output Delay 8 - 1.4 ms Output resolution - 1/6 - Xtal/Clock

Operating Characteristics Notes:

1. Maximum Xtal/clock frquency allowed varies with applied supply voltage (V

DD

).

2. I

DD

requirement for Xtal/clock frequency of 2.24MHz.

3. Signal input level required to provide a constant autocorrelated output.

4. Measured with a 6.0kHz sinewave at the signal input.

5. Measured with V

DD

= 2.5 volts.

6. Measured with a 12kHz input signal.

7. Recommended input signal frequency range to correlation circuits.

8. Input (Signal In) to output (Output) time with a 2.24MHz Xtal/clock input.

Autocorrelating Signal Processor 10 MX102

4800 Bethania Station road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

5.2 Packaging

PIN 1

A

B

ALTERNATIVE

LOCATION MARKING

X

P

J

Y

C

K

H

E

L

T

W

Z

NOTE: All dimensions in inches (mm.)

Angles are in degrees

Packa geTolerances

A B C E H

TYP.

MAX.MIN.

DIM.

J

P

X

W

T

Y

K L

0.105 (2.67)0.093 (2.36)

0.419 (10.64)

45°

7°

0° 10°

0.050 (1.27)

0.041 (1.04)

0.413 (10.49)

0.299 (7.59)

0.050 (1.27)

0.016 (0.41)

0.390 (9.90)

0.020 (0.51)0.003 (0.08)

0.009 (0.23) 0.0125 (0.32)

0.013 (0.33) 0.020 (0.51)

0.395 (10.03)

0.286 (7.26)

Z

5°

Figure 6: 16-pin SOIC Mechanical Outline:

Order as part no. MX102DW

B

A

PIN 1

E1

T

E

K

H

F

J1

J

P

L

C

K1

PackageTolerances

NOTE : All dimensions in inches (mm.)

Angles are in degrees

TYP.

MAX.MIN.

A B

C

E

E1

F

H

DIM.

J

J1

P T

K1

K

L

0.230 (5.84)

0.291 (7.39)

0.415 (10.53)

0.200 (5.08)

0.767 (19.48)

0.165 (4.19)

0.100 (2.54)

0.115 (2.92)

0.370 (9.40)

0.300 (7.61) 0.317 (8.04)

0.70 (17.78)

0.018 (0.46)

0.053 (1.33)

0.075 (1.91)

0.080 (2.03)

0.753 (19.13)

0.285 (7.24)

0.0102 (0.259)

0.020 (0.51)

0.055 (1.39)

0.0098 (0.249)

Figure 7: 16-pin CDIP Mechanical Outline:

Order as part no. MX102J