MX105A Datasheet, PDF (1/15 Pages) CML Microcircuits – Tone Detector

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
C2_{A 7}
8
C2_B
R2
4
Loop
Filter
-+
Tone In
R3
C5
2 _{Input Amp} 1
3
-
V_DD/2
Timing
Logic
Detect
Filter
-+
V_DD
16
C6
5 ^C3A
6
C3_B
11
R4
12
VCO
Detect Counter
13 15 14
MX105A
C1_B
R1
C1_A
10
9
Detect
R_L
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: [phone]
Doc.# 20480133.003
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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