BA1442A Datasheet PDF (AM radio / FM IF stereo system IC)

BA1442A - AM radio / FM IF stereo system IC

Description

338 Audio ICs BA1442A 339 Audio ICs BA1442A 340 Audio ICs BA1442A FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 5V, FM IF MPX: fin = 10.7MHz, 400Hz modulation, 22.5kHz dev (30%), 19kHz 7.5kHz dev (10%) AM: fin = 1000kHz, fm = 400Hz 30%) FMeasurement circuit 341

Features

1) The “S” curve characteristic of the FM detector can be used for upper heterodyne (“N” curve) operation. 2) Audio high cut and low cut can be used to improve the AM fidelity. 3) A reference voltage supply is provided to ensure good frequency stability in the shortwave bands. 4) Good FM stability. 5) Built-in damping resistor (3.3kΩ) for the quadrature coil. 6) The FM MPX uses a Laser Locked Loop, making adjustment of the VCO and addition of external components unnecessary. 7) Built-in forced.

Datasheet Details

Part number	BA1442A
Manufacturer	ROHM
File Size	371.29 KB
Description	AM radio / FM IF stereo system IC
Datasheet	BA1442A Datasheet
Additional preview pages of the BA1442A datasheet.

📁 Similar Datasheet

BA147-25 - Silicon Diode (Telefunken)

BA1.5WK - MINIATURE RELAY (Fujitsu)

BA101WS1-100 - TFT LCD (BOE)

BA103 - DC to DC Converter (XP Power)

BA104S01-100 - 10.4SVGA(PS) TFT-LCD (BOE)

BA121S01-100 - 12.1 SVGA TFT-LCD (BOE)

BA128 - General Purpose Diodes (Fairchild Semiconductor)

BA1282 - Silicon Planar Diodes (Vishay Telefunken)

BA1283 - Silicon Planar Diodes (Vishay Telefunken)

BA129 - High Voltage Low Leackge Diodes (Fairchild Semiconductor)

Full PDF Text Transcription

Click to expand full text

Audio ICs AM radio / FM IF stereo system IC BA1442A The BA1442A is an AM radio and FM IF stereo system IC developed for radio cassette players. The FM circuit is comprised of a differential IF amplifier, a double-balance type quadrature detector, and a PLL-type stereo MPX circuit. The AM circuit is comprised of a local oscillator, a double-balanced mixer, an IF amplifier, a detector, and an AGC circuit. FApplications Radio cassette players FFeatures 1) The “S” curve characteristic of the FM detector can be used for upper heterodyne (“N” curve) operation. 2) Audio high cut and low cut can be used to improve the AM fidelity. 3) A reference voltage supply is provided to ensure good frequency stability in the shortwave bands. 4) Good FM stability. 5) Built-in damping resistor (3.

Published: Apr 1, 2005 |