Purchase HT9020B, In-stock HT9020B From SeekIC.
Part Number: HT9020B
Description: The HT9020B call progress tone detector is a telecom peripheral for Auto-dialing system use.Sw...
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HT9020B
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Suppliers
DataSheet
General Description
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 signal. When it detected CPT signal then it generates relative envelopes for external microcontroller decision to finish different kinds of CPT signal detection such as dial tone, busy tone, ring-back tone and reorder tone.
HT9020B Maximum Ratings
Supply Voltage.............................VSS-0.3V to VDD+6V
Input Voltage .......................... VSS-0.3V to VDD+0.3V
Storage Temperature ...........................-55to 150
Operating Temperature .........................-20 to 75
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
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
· 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
HT9020B Connection Diagram
HT9020B
PDF/DataSheet Download
- Datasheet: HT9020B
- File Size: 123863 KB
- Manufacturer: HOLTEK [Holtek Semiconductor Inc]
- Click here to Download
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