LV4991TT - Monaural BTL Power Amplifier

Sanyo Semicon Device

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Datasheet Details

Part number	LV4991TT
Manufacturer	Sanyo Semicon Device
File Size	251.48 KB
Description	Monaural BTL Power Amplifier
Datasheet	LV4991TT_SanyoSemiconDevice.pdf

LV4991TT 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 ampl

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 |