CS9370DGP DTMF decoder chip dual-tone multi-frequency [Original]

CS9370DGP DTMF Decoder Chip - Dual-Tone Multi-Frequency Receiver IC

The CS9370DGP is an integrated circuit designed for Dual Tone Multi Frequency (DTMF) reception. It combines a digital decoder with bandsplit filter functions. This IC precisely detects and decodes all 16 standard DTMF tone pairs. Digital counting techniques are employed for decoding. A 4-bit output simplifies system integration. High-accuracy switched capacitor filters separate low and high group signals. A built-in dial tone rejection circuit eliminates the need for external pre-filtering. This minimizes external components, board space, and overall cost. The device operates across a wide voltage range and exhibits low standby current. It is suitable for telecommunication and control systems.

Specifications:

• Model: CS9370DGP
• Function: DTMF Receiver / Decoder
• Decoding Capability: 16 DTMF tone pairs
• Output: 4-bit code
• Filtering: Switched capacitor filters
• Special Feature: Built-in dial tone rejection
• Package Type: 18-pin DIP IC
• Operating Voltage: Wide range
• External Components: Minimal
• Standby Current: Low

Key features and benefits:

• Wide Operating Voltage Range
• Minimal External Component Requirement
• No External Pre-filtering Needed
• Low Standby Current Consumption
• Precise 16 DTMF Tone Pair Decoding
• Integrated Digital Decoder and Bandsplit Filter
• 18-pin DIP Package
• Built-in Dial Tone Rejection Circuit

Applications:

• Telecommunication Systems
• Remote Control Applications
• Interactive Voice Response (IVR) Systems
• Security and Access Control
• Modem and Data Communication
• Audio Signal Processing

Frequently Asked Questions:

Q: What is the package type of the CS9370DGP?
A: The CS9370DGP is supplied in an 18-pin DIP (Dual In-line Package) IC.

Q: Does the CS9370DGP require external filters for dial tone rejection?
A: No, the CS9370DGP features a built-in dial tone rejection circuit, eliminating the need for external pre-filtering.

Q: What is the output format of the decoded DTMF tones?
A: The decoded DTMF tones are provided as a 4-bit output code.

Q: Can the CS9370DGP operate with varying supply voltages?
A: Yes, the CS9370DGP is designed for a wide operating voltage range.

Q: How many DTMF tone pairs can this chip decode?
A: The CS9370DGP can precisely detect and decode all 16 standard DTMF tone pairs.

Package Includes:

*Image shown is a representation only.

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