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HT9170D
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ManufacturerHoltek Semicon
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Mfr. Part #HT9170D
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In Stock24295
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Specifications
| Attribute | Value |
| Manufacturer | Holtek Semicon |
| Package | SOIC-18-300mil |
Overview
Description
The HT9170D is a Dual Tone Multi-Frequency (DTMF) receiver used in telecommunication systems for decoding the tone signals typically generated by a telephone keypad. It translates these audio signals into a digital format that can be processed by microcontrollers or other digital systems. The device is popular for its reliability and accuracy in detecting standard DTMF tones, which are used in various applications like phone systems, remote control, and automated telephony services.
Key features of the HT9170D include:
- High Accuracy: Reliable decoding of DTMF signals with a low error rate.
- Low Power Consumption: Suitable for battery-powered devices.
- Integrated Bandpass Filter: Improves signal clarity and robustness.
- Digital Output: Provides a 4-bit binary output corresponding to the pressed keypad button.
- Simple Interface: Easy to integrate with other digital systems due to straightforward input and output connections.
Overall, the HT9170D is a versatile and efficient solution for applications requiring DTMF signal processing.
Key features of the HT9170D include:
- High Accuracy: Reliable decoding of DTMF signals with a low error rate.
- Low Power Consumption: Suitable for battery-powered devices.
- Integrated Bandpass Filter: Improves signal clarity and robustness.
- Digital Output: Provides a 4-bit binary output corresponding to the pressed keypad button.
- Simple Interface: Easy to integrate with other digital systems due to straightforward input and output connections.
Overall, the HT9170D is a versatile and efficient solution for applications requiring DTMF signal processing.
Equivalent
The HT9170D is a DTMF (Dual-Tone Multi-Frequency) receiver IC. Equivalent products include:
1. MT8870D: Similar function DTMF receiver from Zarlink Semiconductor.
2. CM8870: A DTMF receiver from California Micro Devices.
3. TCM8870: A DTMF receiver IC from Texas Instruments.
4. M8870: Another variant available from various manufacturers.
These alternatives typically provide similar DTMF decoding functionality, but compatibility should be verified based on specific application requirements.
1. MT8870D: Similar function DTMF receiver from Zarlink Semiconductor.
2. CM8870: A DTMF receiver from California Micro Devices.
3. TCM8870: A DTMF receiver IC from Texas Instruments.
4. M8870: Another variant available from various manufacturers.
These alternatives typically provide similar DTMF decoding functionality, but compatibility should be verified based on specific application requirements.
Features
The HT9170D is a DTMF (Dual-Tone Multi-Frequency) receiver IC commonly used in telecommunication systems. Key features of the HT9170D include:
1. Integrated Circuit: Designed for decoding DTMF signals into binary digital outputs.
2. Two Operating Modes: Provides a basic output mode and a data mode for different applications.
3. High Performance: Offers reliable DTMF signal detection with internal gain setting amplifiers and precise filters.
4. Low Power Consumption: Suitable for battery-operated devices, ensuring efficient energy usage.
5. Power-Down Mode: Includes a power-down feature to enhance energy efficiency when not in active use.
6. Minimal External Components: Simplifies circuit design and reduces the overall component count.
7. Wide Operating Voltage Range: Flexible use in various electronic designs with a typical operating range.
8. Standard 18-Pin PDIP/SOP Package: Ease of integration into existing systems.
These features make the HT9170D a versatile choice for applications such as telecommunication devices, remote controls, and security systems where reliable DTMF decoding is essential.
1. Integrated Circuit: Designed for decoding DTMF signals into binary digital outputs.
2. Two Operating Modes: Provides a basic output mode and a data mode for different applications.
3. High Performance: Offers reliable DTMF signal detection with internal gain setting amplifiers and precise filters.
4. Low Power Consumption: Suitable for battery-operated devices, ensuring efficient energy usage.
5. Power-Down Mode: Includes a power-down feature to enhance energy efficiency when not in active use.
6. Minimal External Components: Simplifies circuit design and reduces the overall component count.
7. Wide Operating Voltage Range: Flexible use in various electronic designs with a typical operating range.
8. Standard 18-Pin PDIP/SOP Package: Ease of integration into existing systems.
These features make the HT9170D a versatile choice for applications such as telecommunication devices, remote controls, and security systems where reliable DTMF decoding is essential.
Pinout
The HT9170D is a DTMF (Dual-Tone Multi-Frequency) receiver IC that is used to decode the tones generated by telecommunication devices. It comes in an 18-pin DIP (Dual In-line Package) or SOP (Small Outline Package).
Here is a concise summary of the pin functions for the HT9170D:
1. IN+: Non-inverting input for the differential input amplifier.
2. IN-: Inverting input for the differential input amplifier.
3. GS: Gain selector for the preamplifier.
4. VREF: Reference voltage output.
5. PWDN: Power down control pin.
6. OSC1: Oscillator pin 1, for crystal or external clock input.
7. OSC2: Oscillator pin 2, used with OSC1 to connect a crystal.
8. DVSS: Digital ground pin.
9. DR: Data valid output, indicates when the output data is valid.
10. D0-D3: Four data output pins for the decoded DTMF signals.
14. EST: Early steering output, indicates early detection of valid tones.
15. StD: Delayed steering output, indicates stable detection.
16. VDD: Positive power supply pin.
17. VSS: Ground pin.
18. TOE: Three-state output enable for the data outputs.
These pins collectively support the function of decoding DTMF tones into binary representations.
Here is a concise summary of the pin functions for the HT9170D:
1. IN+: Non-inverting input for the differential input amplifier.
2. IN-: Inverting input for the differential input amplifier.
3. GS: Gain selector for the preamplifier.
4. VREF: Reference voltage output.
5. PWDN: Power down control pin.
6. OSC1: Oscillator pin 1, for crystal or external clock input.
7. OSC2: Oscillator pin 2, used with OSC1 to connect a crystal.
8. DVSS: Digital ground pin.
9. DR: Data valid output, indicates when the output data is valid.
10. D0-D3: Four data output pins for the decoded DTMF signals.
14. EST: Early steering output, indicates early detection of valid tones.
15. StD: Delayed steering output, indicates stable detection.
16. VDD: Positive power supply pin.
17. VSS: Ground pin.
18. TOE: Three-state output enable for the data outputs.
These pins collectively support the function of decoding DTMF tones into binary representations.
Manufacturer
The HT9170D is manufactured by Holtek Semiconductor. Holtek is a semiconductor company based in Taiwan. It specializes in the design and production of a wide range of integrated circuits (ICs) for various applications, including consumer electronics, home appliances, and industrial control. Holtek is particularly known for its microcontroller units (MCUs) and various peripheral ICs. The company focuses on providing cost-effective and innovative solutions for its customers, supporting industries with technology that enhances the performance and efficiency of electronic products.
Package
The HT9170D is typically available in a Dual In-line Package (DIP), specifically a 18-pin DIP package. This form factor is commonly used for integrated circuits and is suitable for through-hole mounting on printed circuit boards.
