Tone Detector. MX105A Datasheet

MX105A Detector. Datasheet pdf. Equivalent

Part MX105A
Description Tone Detector
Feature DATA BULLETIN MX105A Tone Detector • FEATURES • Operates in High Noise Conditions • ≥36 dB Signal I.
Manufacture CML
Datasheet
Download MX105A Datasheet




MX105A
DATA BULLETIN
MX105A Tone Detector
FEATURES
Operates in High Noise Conditions
• ≥36 dB Signal Input Range
High Sensitivity
Low Power Operation 2.7 V to 5.5 V
Adjustable Bandwidth
Adjustable Frequency
PRELIMINARY INFORMATION
APPLICATIONS
Single and Multitone System
Applications
C4
C2A 7
8
C2B
R2
4
Loop
Filter
-+
Tone In
C5
R3
2 Input Amp 1
3
- VDD/2
Timing
Logic
Detect
Filter
-+
VDD
16
5 C3A
6
C3B
C6
11
R4
12
VCO
Detect Counter
13 15 14
MX105A
C1B R1
C1A
10
9
Detect
RL Out
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.
www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc.# 20480133.003
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.



MX105A
Tone Detector
2 MX105A PRELIMINARY INFORMATION
CONTENTS
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 f0 ..................................................................................................................................7
5.3 Calculate Minimum Usable Bandwidth....................................................................................7
5.4 Calculate The Recommended Operating Bandwidth ..............................................................7
5.5 Select R4 for Operating BW ....................................................................................................8
5.6 Calculate R2×C2A...................................................................................................................8
5.7 Define Maximum Allowed Response Time..............................................................................8
5.8 Calculate R3×C3A...................................................................................................................8
5.9 Calculate Maximum De-response Time ..................................................................................9
5.10 Calculate Signal to Noise Performance...............................................................................10
5.11 Calculate C4 for 30° Phase Shift.........................................................................................10
6. Performance Specification ..........................................................................................11
6.1 Electrical Performance ..........................................................................................................11
6.1.1 Absolute Maximum Ratings ..........................................................................................................11
6.1.2 Operating Limits............................................................................................................................11
6.1.3 Operating Characteristics .............................................................................................................12
6.2 Packaging..............................................................................................................................13
MXCOM, Inc. reserves the right to change specifications at any time and without notice.
© 1997 MX•COM, INC.
www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc.# 20480133.003
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.







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