LMC567CMX NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The LMC567CMX NOPB is a low-power CMOS tone decoder IC from Texas Instruments, detecting a specific audio frequency tone within the range of 0.01 Hz to 500 kHz. It operates from -25°C to 100°C and is packaged in an 8-pin SOIC. Used in remote control receivers, communication decoders, and tone detection circuits requiring stable frequency discrimination.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LMC567CMX NOPB Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- CMOS tone decoder detecting specific frequencies from 0.01 Hz to 500 kHz
- Low power CMOS design suitable for battery-powered remote and communication systems
- 8-pin SOIC package with tape-and-reel packaging for automated PCB assembly
- Frequency range programmable via external resistor and capacitor network
- Wide temperature range: -25°C to 100°C for industrial operating environments
Applications
The LMC567CMX NOPB is used in audio tone decoders for remote control systems, DTMF signal detection, and carrier-detection circuits in industrial communication modems. It is suited for motor speed control feedback via tone signals, door bell tone detection, and narrowband communication receivers where a single programmable tone frequency must be reliably identified in the presence of other audio signals.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LMC567CMX NOPB:
Frequently Asked Questions
What frequency range can the LMC567CMX NOPB detect?
The LMC567CMX NOPB can detect tones across an extremely wide frequency range from 0.01 Hz to 500 kHz, set by an external resistor-capacitor network. This flexibility allows the same device to be programmed for low-frequency industrial tone signals or higher audio and ultrasonic frequencies in communication decoders and remote control systems.
How is the detection frequency programmed on the LMC567CMX NOPB?
The center frequency of the LMC567CMX NOPB is set by an external timing resistor and capacitor connected to dedicated pins. Changing these component values adjusts the phase-locked loop center frequency anywhere within the 0.01 Hz to 500 kHz operating range, enabling the same IC to be adapted to different tone frequencies without firmware changes.
What is the operating temperature range of the LMC567CMX NOPB?
The device is rated for operation from -25°C to 100°C, covering both industrial and consumer temperature grades. This range makes it suitable for use in outdoor industrial enclosures, factory automation equipment, and communication terminals operating in environments beyond standard commercial temperature specifications.
What package does the LMC567CMX NOPB use?
It is available in an 8-pin SOIC (Small Outline Integrated Circuit) package in tape-and-reel format, designated by the X and T/R suffixes in the part number. The 8-pin SOIC is a compact, well-supported surface-mount package that fits standard PCB land patterns and is compatible with automated SMT assembly processes.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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