HT9170D - SOP-18 SMD Holtek DTMF Receiver 3.58 MHz Resonator, 2.5 V to 5.5 V [Original]

Holtek HT9170D SOP-18 SMD DTMF Receiver IC with 3.58 MHz Resonator

The Holtek HT9170D is an integrated Dual Tone Multi Frequency (DTMF) receiver IC. It incorporates a digital decoder and bandsplit filter within a SOP-18 package. This IC detects and decodes all 16 standard DTMF tone pairs. A 4-bit code is output for system integration. It utilizes switched capacitor filters for tone signal division. A built-in dial tone rejection circuit reduces external component requirements. The device operates within a voltage range of 2.5V to 5.5V. Power-down and inhibit modes are included for power management. Minimal external components are required, reducing design complexity.

Specifications:

• Product Model: HT9170D
• Manufacturer: Holtek
• Package Type: SOP-18 SMD
• Function: DTMF Receiver IC
• Resonator Frequency: 3.58 MHz
• Operating Voltage: 2.5 V to 5.5 V
• Output Type: 4-bit code
• Integrated Features: Digital Decoder, Bandsplit Filter, Dial Tone Rejection
• Tone Pairs Detected: 16

Key features and benefits:

• Operating voltage range: 2.5V to 5.5V
• Minimal external component requirement
• Integrated bandsplit filter and digital decoder
• Built-in dial tone rejection circuit
• Detection and decoding of all 16 DTMF tone pairs
• Low standby current
• SOP-18 SMD package
• Power-down and inhibit modes included

Applications:

• Telecommunication Systems
• Remote Control Systems
• Data Entry Terminals
• Security Systems
• Interactive Voice Response (IVR) Systems
• Home Automation

Frequently Asked Questions:

Q: What is the primary function of the Holtek HT9170D IC?
A: The Holtek HT9170D is a Dual Tone Multi Frequency (DTMF) receiver IC designed to detect and decode 16 standard DTMF tone pairs.

Q: What is the operating voltage range for the HT9170D?
A: The HT9170D operates within a voltage range of 2.5V to 5.5V.

Q: What package type is the HT9170D available in?
A: The HT9170D is available in a SOP-18 SMD package.

Package Includes:

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