Part number:
HT9020B
Manufacturer:
Holtek Semiconductor
File Size:
145.26 KB
Description:
Call progress tone detector.
HT9020B_HoltekSemiconductor.pdf
Datasheet Details
The HT9020B call progress tone detector is a telecom peripheral for Auto-dialing system use.
Switched capacitors technology is implemented into the chip to get good performance characteristics of band pass filter in the range of 305 to 640Hz call progress tone which is dual tone multi-frequency sign
HT9020B_HoltekSemiconductor.pdf
Datasheet Details
HT9020B
Holtek Semiconductor
145.26 KB
Call progress tone detector.
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