MC44BC375UAEF

Video Processing Overview

The MC44BC375UAEF is a high-integration CMOS PLL-tuned VHF audio/video modulator manufactured by Freescale Semiconductor. It supports multiple broadcast standards including PAL, SECAM, and NTSC formats via programmable I2C bus control. The device integrates an on-chip LC tank circuit and sound subcarrier oscillator, eliminating the need for external varicap diodes or inductors. It operates with a digital supply voltage range of 1.62 V to 1.98 V and an analog supply range of 2.97 V to 3.63 V. The component is housed in a 32-LQFP surface-mount package.

Video Processing Feature Summary

• Integrates a programmable internal PLL with an on-chip LC tank circuit covering the full UHF range, removing the requirement for external tuned components.
• Features an on-chip programmable sound subcarrier oscillator that covers all broadcast standards without external adjustments.
• Supports multiple video standards (PAL, SECAM, NTSC) through high-speed I2C bus programming.
• Includes a power save function that disables internal VCOs and mixers while activating a logic output port.

Video Processing Applications

• Video Cassette Recorders (VCRs)
• Set-top boxes
• Similar consumer electronic devices requiring RF modulation

Video Processing Procurement Notes

Verify the specific suffix 'AEF' against official NXP/Freescale documentation to confirm pinout and packaging details. Ensure compatibility with existing PCB layouts designed for the base MC44CC373 series. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Cross-reference the manufacturer's current product status to ensure availability.

Video Processing Selection Notes

Select this component for applications requiring a drop-in replacement for legacy MC44BS373/4 series devices with reduced external component counts. The integrated PLL and sound oscillator simplify PCB design by minimizing external adjustments. Verify that the system architecture supports I2C programming for standard selection and channel tuning.

Video Processing Part Context

This part belongs to the MC44CC373/MC44CC374 CMOS family of RF modulators from Freescale Semiconductor. It represents the latest generation of legacy devices, offering functional equivalence to the MC44BS373/4 series but with enhanced integration. The family is designed to reduce PCB complexity by incorporating previously external passive components onto the silicon die.

Video Processing Replacement Considerations

Functionally equivalent to the MC44BS373/4 series. Verify pin-to-pin compatibility before substitution.