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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.
MX105A Datasheet
