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BA7042 - VCO with sensitivity adjustment function

Description

(1) Control amplifier (pin 1, pin 7, pin 8) The differential amplifier’s positive input is pin 1, its negative input pin 8, and its output pin 7.

Set the input bias voltage so that the pin 7 voltage is VCC / 2.

The amplification degree is determined by the external constant.

Features

  • 1) The number of external components is minimized. 2) Internal control amplifier for the VCO. 3) Oscillation frequency can be set with an external constant. 4) Maximum oscillation frequency of 18MHz. 5) DIP 8-pin package. FBlock diagram 108 Optical disc ICs FAbsolute maximum ratings (Ta = 25_C) BA7042 FRecommended operating conditions FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC=5.0V) 109 Optical disc ICs FMeasurement circuit BA7042 F.

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Datasheet Details

Part number BA7042
Manufacturer ROHM
File Size 64.66 KB
Description VCO with sensitivity adjustment function
Datasheet download datasheet BA7042 Datasheet
Additional preview pages of the BA7042 datasheet.

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Full PDF Text Transcription

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Optical disc ICs VCO with sensitivity adjustment function BA7042 The BA7042 is a monolithic IC comprising a VCO (voltage controlled oscillator) with sensitivity adjusting capabilities. The oscillation frequency can be set with an external constant, and is controlled according to the control voltage. The BA7042 can be used to produce high-modulation-factor FM signals by superimposing its control voltage with AC signals, and to configure a PLL circuit just by attaching a frequency divider and a phase comparator. FApplications FM intercom FM wireless microphone FSK modem FFeatures 1) The number of external components is minimized. 2) Internal control amplifier for the VCO. 3) Oscillation frequency can be set with an external constant. 4) Maximum oscillation frequency of 18MHz.
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