LV4991M - Monaural BTL Power Amplifier

Product Overview

Sanyo Semicon Device

Datasheet Details

Part number	LV4991M
Manufacturer	Sanyo Semicon Device
File Size	234.00 KB
Description	Monaural BTL Power Amplifier
Datasheet	LV4991M Datasheet
Additional preview pages of the LV4991M datasheet.

Product details

Description

Pin voltage Pin No. Standby mode at 0 to 0.3V Operation mode at 1.9 to VCC VCC 2 21kΩ 121.4kΩ 40.7kΩ GND 3 VREF 1.81 Ripple filter pin (For connection of capacitor for filter) VCC 100kΩ VCC 3 450kΩ 101kΩ GND 4 CNT Second amplifier stop control pin Second amplifier stopped at 0 to 0.3V VCC 4 11kΩ 100kΩ 20µA GND 5 8 OUT2 OUT1 1.81 Power amplifi

Features

as above described. 3. Pin 4 control (second amplifier stop control function) Pin 4 is a pin to turn ON/OFF the operation of second amplifier. By using this function, the pop sound at startup can be reduced. Note that pin 4 can be controlled by applying the voltage described below : Second amplifier ON ⇒ V4 = 1.6 to VCCV or OPEN Second amplifier OFF ⇒ V4 = 0 to 0.3V When the pin-3 capacitor C4 is downsized, the pop sound becomes louder. The pop sound can be reduced by providing the time Tmu to s.

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Published: Jan 4, 2012 |