MX105ADW CMLMICRO [CML Microcircuits], MX105ADW Datasheet

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MX105ADW

Manufacturer Part Number
MX105ADW
Description
Tone Detector
Manufacturer
CMLMICRO [CML Microcircuits]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MX105ADW
Manufacturer:
MX-COM
Quantity:
20 000
The MX105A is a monolithic CMOS tone detector for tone decoding in single and multitone signaling systems. Using
phase locked loop (PLL) decoding techniques, the MX105A recognizes tones in the presence of high noise levels and
strong adjacent channel tones. Detection frequency and bandwidth can each be independently adjusted. The design is
immune to high levels of harmonic and sub-harmonic noise. It also maintains excellent noise immunity and constant
bandwidth over a wide range of input signal levels.
The MX105A requires a voltage supply of 2.7V to 5.5V and is available in the following package styles: 16-pin SOIC
(MX105ADW), 16-pin PDIP (MX105AP), and 24-pin PLCC (MX105ALH).
© 1997 MX•COM, INC.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
FEATURES
Operates in High Noise Conditions
High Sensitivity
Low Power Operation 2.7 V to 5.5 V
Adjustable Bandwidth
Adjustable Frequency
R4
36 dB Signal Input Range
C2
C2
C4
A
B
11
12
7
8
C1
B
www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054
13
DATA BULLETIN
MX105A
R2
R1
VCO
Loop
Filter
- +
15
4
14
C1
2
A
Input Amp
MX105A
Timing
Logic
-
All trademarks and service marks are held by their respective companies.
Tone In
Tone Detector
APPLICATIONS
Single and Multitone System
Applications
1
C5
Detect Counter
V
DD
/2
R
Detect
Filter
L
- +
9
3
PRELIMINARY INFORMATION
R3
Detect
Out
16
10
5
6
C3
C3
A
B
V
DD
Doc.# 20480133.003
C6

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MX105ADW Summary of contents

Page 1

... The MX105A requires a voltage supply of 2.7V to 5.5V and is available in the following package styles: 16-pin SOIC (MX105ADW), 16-pin PDIP (MX105AP), and 24-pin PLCC (MX105ALH). © 1997 MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 ...

Page 2

Tone Detector Section.......................................................................................................................... Page 1. Block Diagram ................................................................................................................3 2. Signal List .......................................................................................................................4 3. External Components ....................................................................................................5 4. General Description .......................................................................................................6 5. Application ......................................................................................................................7 5.1 Method for Calculating External Component Values...............................................................7 5.2 Define f 0 ..................................................................................................................................7 5.3 Calculate Minimum Usable Bandwidth....................................................................................7 ...

Page 3

Tone Detector 1. Block Diagram © 1997 MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 4800 Bethania Station Road, Winston-Salem, ...

Page 4

Tone Detector 2. Signal List Pin No. Pin No. DW INPUT AMP OUT ...

Page 5

Tone Detector 3. External Components Signal Input See Section 5 See Section 5 See Section 5.6 R3 See Section 5.8 R4 See Section 5.5 R Note See ...

Page 6

Tone Detector 4. General Description The MX105A implements a frequency detector with a phase locked loop (PLL) and a lock detector. The voltage controlled oscillator (VCO) center frequency, detection bandwidth, loop filter, and detect filter are all independently controlled by ...

Page 7

Tone Detector 5. Application The external components shown in Figure 2 are used to adjust the various performance parameters of the MX105A. The signal-to-noise performance, response time and signal bandwidth are all interrelated factors which should be optimized to meet ...

Page 8

Tone Detector 5.5 Select R4 for Operating BW The exact bandwidth given by any value of R4 will vary slightly. In applications where an exact bandwidth is required, R4 should be a variable resistor to permit adjustment. 5.6 Calculate R2 ...

Page 9

Tone Detector 5.9 Calculate Maximum De-response Time For improved de-response time, a diode (1N914 or similar) can be placed between pins 5 and 6, as shown in Figure 3. The formula and figure below show the approximate time the MX105A ...

Page 10

Tone Detector 5.10 Calculate Signal to Noise Performance Worst-case S/N calculations depend on calculation of a value “M” using the formula shown below: substituting example values, By substituting this value for M in Figure 5, the minimum required S/N of ...

Page 11

Tone Detector 6. Performance Specification 6.1 Electrical Performance 6.1.1 Absolute Maximum Ratings Exceeding these maximum ratings can result in damage to the device. General Supply ( Voltage on any pin (wrt V Current V DD ...

Page 12

Tone Detector 6.1.3 Operating Characteristics For the following conditions unless otherwise specified 5 25°C DD AMB Load resistance on decoder output = 20k . Static Parameters I DD Amplifier Input Impedance Digital Output Impedance ...

Page 13

... Figure 6: 16-pin SOIC Mechanical Outline: Order as part no. MX105ADW Figure 7: 16-pin PDIP Mechanical Outline: Order as part no. MX105AP © 1997 MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA ...

Page 14

Tone Detector PIN Figure 8: 24-pin PLCC Mechanical Outline: Order as part no. MX105ALH © 1997 MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 4800 ...

Page 15

CML Microcircuits COMMUNICATION SEMICONDUCTORS In the process of creating a more global image, the three standard product semiconductor companies of CML Microsystems Plc (Consumer Microcircuits Limited (UK), MX-COM, Inc (USA) and CML Microcircuits (Singapore) Pte Ltd) have undergone name changes ...

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