MC44BC375UA - Freescale Semiconductor

MC44BC375UA PLL Tuned VHF (Channel 3 / 4)Audio / Video Modulator

CHS PSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SFS PLLFLT TVOVCC TVOUT GND VCCA VIDEO PSave/LO LOP XTAL GND PREEM AUDIO SPLFLT SOIC16 pin package Figure 1. Pin Connections Table 1. Package Pin Descriptions Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name CHS PSS LOP XTAL GND PREEMP AUDIOIN SPLFLT PSAVE/LO VIDEOIN VCC GND RFOUT RFOVCC PLLFL.

Features

• Two RF output power levels offered:
• MC44BC375U has typical RFOUT power of 76 dBµV
• MC44BC375UA has typical RFOUT power of 80 dBµV U.S. broadcast frequency for Channel 3 or 4 operation is selected by CHS pin Programmable VHF oscillator and sound subcarrier oscillator. No external varicaps, diodes/inductors, or tuned components required. Programmable Picture/Sound Carrier Ratio (14 dB or 16 dB) is selected by PSS pin Programmable Sound Subcarrier Oscillator (4.5 or 5.5 MHz) is selected by SFS pin) Peak White Clip Low-power standby mode is selected by the Psave/LO pin Logic Output Port is se.