Datasheet4U Logo Datasheet4U.com

U4454B - Quasi-Split-Sound Processing and AM-Demodulator

General Description

The U4454B quasi-split-sound processor is a bipolar integrated circuit for all FM-TV standards and NICAM sound systems.

For FM/NICAM the IC operates as QSS-mixer.

In case of AM sound the circuit can be used as AM demodulator.

Key Features

  • D PLL intercarrier-mixer for all FM standards (incl. NICAM sound system) D High grade signal processing for FM/NICAM sound systems D Also suitable as AM-demodulator D Gain controlled wideband amplifier D AGC operates as a peak- and mean-level detector D High input sensitivity D Wide supply voltage range (6.8 V up to 13 V) D Low power consumption D ESD protection Case: 16-pin DIL plastic Block Diagram VCO Tank Loop filter 93 7653 12 Lock detector 16 IF Input 1 Video 11 8 9 VCO 90° 0° Inte.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
U440 N-Channel JFET Monolithic Dual Calogic LLC
U440 Low Leakage Micross
U440 dual n-channel JFET Siliconix
U441 N-Channel JFET Monolithic Dual Calogic LLC
U441 Low Leakage Micross

Other Datasheets by TEMIC Semiconductors (now Microchip)

Part Number Description
U4459B IF Amplifier
U4488B Quasi-Split Sound Circuit and AM Demodulator

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com U4454B Quasi-Split-Sound Processing and AM-Demodulator Description The U4454B quasi-split-sound processor is a bipolar integrated circuit for all FM-TV standards and NICAM sound systems. For FM/NICAM the IC operates as QSS-mixer. In case of AM sound the circuit can be used as AM demodulator. Features D PLL intercarrier-mixer for all FM standards (incl. NICAM sound system) D High grade signal processing for FM/NICAM sound systems D Also suitable as AM-demodulator D Gain controlled wideband amplifier D AGC operates as a peak- and mean-level detector D High input sensitivity D Wide supply voltage range (6.