BH3544F Datasheet | ROHM

Description BH3544F, BH3547F, BH3548F are headphone amplifiers suitable for portable products. BH3544F, BH3547F, BH3548F has a fixed gain of 6 d B. External resistors for gain setting are not needed. Package of BH3544F, BH3547F, BH3548F is pin-to-pin patible (SOP8), enable to replace each other easily. BH3544F, BH3547F, BH3548F also has mute functions that make it easy to prevent pop noise when power supply turns on/off. Moreover, thermal shutdown function is built-in.BH3544F, BH3547F can drive 16/32Ω load, BH3548F can drive 8/16/32Ω. So, BH3548F is suitable for 8Ω receiver. - Features 1) Built-in mute function for preventing pop noise when power supply turns on/off 2) Built-in thermal shutdown function 3) BH3544F, BH3547F, BH3548F are pin-to-pin patible 4) SOP8 small package - Applications TV, Desktop PC, Notebook PC, Camcorder and other equipment having headphone output - Line up Part No. Supply voltage Quiescent current Amplifier gain Output [RL=16Ω] load impedance Operating temperature range BH3547F +2.8 ～ +6.5 +4.5 ～ +6.5 7.0 3.7 62 77 16 / 32 -25 ～ +75 BH3548F +4.0 ～ +5.5 62 8/16/32 -40 ～ +85 Unit V m A d B m W Ω ℃ - Absolute maximum ratings(Ta=25°C) Parameter Symbol Ratings BH3544F,BH3547F,BH3548F Applied voltage Power dissipation Pd - 1 Storage temperature Tstg -55～+125 - 1 Derating is done at 5.5m W/°C above Ta=25°C. (When mounted on a 70mm×70mm×1.6mm PCB board, FR4) - Operating conditions (Ta=25°C) Parameter Symbol Limits BH3547F Supply...