HT9020B

Call Progress Tone Detector

Holtek Semiconductor

HT9020B Features

* Operating voltage: 2.5V~5.5V

* Low power consumption

* Low cost 32768Hz crystal

* CPT Band: 305~640Hz detection

* Good performance: -8 ~ -39 dBm at VDD=2.5V 0 ~ -27 dBm at VDD=5V

* 8-pin DIP package General Description The HT9020B call progress tone detector is a telecom

HT9020B General Description

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 Datasheet (145.26 KB)

HT9020B Datasheet Preview — Preview of HT9020B PDF

Datasheet Details

Part number:

HT9020B

Manufacturer:

Holtek Semiconductor

File Size:

145.26 KB

Description:

Call progress tone detector.

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HT9020B Call Progress Tone Detector Holtek Semiconductor

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HT9020B Features

HT9020B General Description

Datasheet Details

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