HT9020B detector equivalent, call progress tone detector.
* Operating voltage: 2.5V~5.5V
* Low power consumption
* Low cost 32768Hz crystal
* CPT Band: 305~640Hz detection
* Good performance:
-8 ~ -39 dBm at.
mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that suc.
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