LA4814JA数据手册ONSEMI中文资料规格书

描述 Description

The LA4814JA buili-in the power amplifier circuit capable of low-voltage (2.7V and up) operation and has additionally a standby function to reduce the current drain. It is a power amplifier IC optimal for speaker drive used in battery-driven portable equipment and other such products.

特性 Features

• On-chip 2-channel power amplifierOutput power 1 = 350mW typ. (VCC = 5.0V, RL = 4Ω, THD = 10%)Output power 2 = 150mW typ. (VCC = 3.6V, RL = 4Ω, THD = 10%)
• Enables monaural BTL output system by changing externally connected componentsOutput power 3 = 700mW typ. (VCC = 5.0V, RL = 8Ω, THD = 10%)Output power 4 = 320mW typ. (VCC = 3.6V, RL = 8Ω, THD = 10%)
• Low-voltage operation possibleVCC =2.7V and up
• Standby functionCurrent drain at standby = 0.1µA typ. (VCC = 5V)
• Voltage gain setting possibleVoltage gain = 3 to 20dB
• Second amplifier stop control functionReducing the pop noise at startup (in BTL mode)

应用 Application

• Mini radio cassette players/recorders, portable radios, transceivers and other portable audio devices