MC44BS373CAFC

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MC44BS373CAFC

+BOM

IC NTSC/PAL MODULATOR 20QFN

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Specifications

Attribute Value
Package Tray
ProductStatus Obsolete
Type NTSC/PAL Modulator
Applications Audio/Video, VCR's, Set-Top Boxes
MountingType Surface Mount
Package/Case 20-VQFN Exposed Pad

Overview

Description

The MC44BS373CAFC is a highly integrated radio frequency (RF) modulator designed by Freescale Semiconductor, primarily used in consumer electronics to modulate audio and video signals for transmission over standard RF coaxial cables. This chip is commonly employed in devices like VCRs, DVD players, and video game consoles to output signals that can be tuned by a television's RF input.
The MC44BS373CAFC supports both PAL and NTSC television standards, making it versatile for global applications. It operates within the VHF and UHF frequency bands, providing flexibility in channel selection. Key features include adjustable output levels, low power consumption, and a small form factor, making it suitable for compact and energy-efficient designs.
Additionally, the device includes a programmable phase-locked loop (PLL) for frequency synthesis, ensuring precise and stable channel allocation. The integration of an audio subcarrier modulator allows for stereo sound transmission. The MC44BS373CAFC is valued for its reliability, ease of use, and the ability to provide high-quality signal modulation in a cost-effective manner.

Equivalent

The MC44BS373CAFC is a single-chip multi-standard video modulator used in consumer electronics. Equivalent products might include other video modulators with similar features. Examples are the Philips TDA8290, TDA8295, or the Sony CXA2025 series. When looking for equivalents, ensure compatibility with your specific requirements like frequency range, output power, and modulation standards. Always consult datasheets for detailed specifications to ensure compatibility.

Features

The MC44BS373CAFC is a PLL-tuned VHF/UHF transmitter IC designed for low-power communication applications. Key features include:
1. Frequency Range: Operates within the VHF and UHF bands, allowing flexibility in frequency selection.
2. PLL Tuning: Phase-Locked Loop (PLL) technology ensures stable and precise frequency generation.
3. Modulation Capability: Supports AM/FM modulation, suitable for audio and video signal transmission.
4. Low Power Consumption: Designed for applications requiring minimal power, making it ideal for portable devices.
5. Compact Package: Available in a compact form factor, facilitating integration into space-constrained designs.
6. Built-in Amplifier: Includes an RF amplifier to enhance signal strength, improving transmission range.
7. Temperature Range: Operates effectively across a wide temperature range, suitable for various environmental conditions.
8. Programming Interface: Features a simple programming interface for frequency and modulation settings.
These features make the MC44BS373CAFC suitable for applications such as wireless audio/video transmission, remote controls, and other communication devices requiring robust performance and reliability.

Pinout

The MC44BS373CAFC is a multi-frequency VHF/UHF TV modulator IC. It typically comes in a 16-pin TSSOP package. Here is a brief overview of the pin functions:
1. GND: Ground reference for the circuit.
2. VCC: Supply voltage for the IC.
3. REF: Reference frequency input, usually from a crystal or oscillator.
4. SDA: Serial data line for I2C communication.
5. SCL: Serial clock line for I2C communication.
6. VIDEO: Video input for modulation.
7. AUDIO: Audio input for modulation.
8. VTUNE: Voltage tune output for PLL control.
9. SPLL_EN: Enable for synthesizer PLL.
10. TVOUT: Modulated RF output.
11. XTAL: Crystal oscillator connection.
12. LAPC: Loop amplitude control.
13. PLL_LF: Loop filter for PLL.
14. GND: Additional ground pin.
15. MOD_EN: Modulator enable.
16. PWR_SD: Power shutdown.
These pins collectively handle power, control, signal input, and RF output functions necessary for TV signal modulation.

Manufacturer

The MC44BS373CAFC is manufactured by NXP Semiconductors. NXP is a global semiconductor company headquartered in Eindhoven, Netherlands. It was originally a part of Philips Electronics but became an independent company in 2006. NXP specializes in the design and manufacture of semiconductors for a wide range of applications, including automotive, industrial, mobile, and communication infrastructure. The company is well-known for its expertise in high-performance mixed-signal electronics, with a strong focus on innovation and security solutions.

Application

The MC44BS373CAFC is a low-power, single-chip RF modulator designed for consumer electronics applications. Its primary application areas include:
1. Cable and Broadcast TV: Converts baseband video and audio signals into RF signals for home television sets.
2. VCRs and DVD Players: Used to output RF signals for devices lacking advanced connectivity options.
3. Video Game Consoles: Facilitates connection to older TVs by modulating video game output.
4. Set-top Boxes: Enables RF output for digital TV converters or satellite receivers.
5. Home Security Systems: Modulates security camera feeds for viewing on standard TVs.
These applications leverage the chip’s capability to provide interference-free modulation and low power consumption.

Package

The MC44BS373CAFC is typically available in a TSSOP (Thin Shrink Small Outline Package) form. This type of package is designed to save space while allowing for surface mounting on printed circuit boards, making it suitable for compact electronic applications.

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