CMX631AD5 CML Microcircuits, CMX631AD5 Datasheet - Page 6

• Manufacturer Part Number: CMX631AD5
• Description: Low Voltage SPM Detector
• Manufacturer: CML Microcircuits

Low Voltage SPM Detector
4 General Description
4.1 Tone Follower Mode
The Tone Follower Output produces a logic ‘0’ when a valid signal is detected. A logic ‘1’ signifies a NOTONE
or bad decode. See Figure 3.
4.2 Packet Mode
The Packet (Cumulative Tone) Mode Output will respond and/or de-respond after a cumulative 40ms of good
tone (or NOTONE) in any 48ms period by providing a Logic level output. See Figure 3.
This process will ignore small fluctuations or fades of a valid frequency input and is available for µProcessor
‘wake-up’, Minimum tone detection, NOTONE indication or transient avoidance.
SIGNAL INPUT
TONE FOLLOWER OUTPUT
PACKET MODE OUTPUT
1998 Consumer Microcircuits Limited
SIGNAL INPUT ......
TONE FOLLOWER OUTPUT ......
PACKET MODE OUTPUT ......
Figure 3: Tone Follower and Packet Mode Outputs
TONE
NOTONE
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RESPONSE
DELAY
DERESPONSE
DELAY
CMX631A
D/631A/1