Description
The TS4851 is a low power audio amplifier that can drive either both a mono speaker or a stereo headset. To the speaker, it can deliver 400 mW (typ.) of continuous RMS output power into an 8Ω load with a 1% THD+N value. To the headset driver, the amplifier can deliver 30 mW (typ.) per channel of continuous average power into a stereo 32 Ω bridged-tied load with 0.5% THD+N @ 3.3V.
   
■ Operating from VCC = 3V to 5.5V
■ Rail to rail input/output
■ Speaker driver with 1 W output @ Vcc = 5V,
    THD+N = 1%, F = 1kHz, 8Ω load
■ Headset drivers with 160 mW output @
    Vcc = 5V, THD+N = 1%, F = 1kHz, 32Ω load
■ Headset output is 30mW in stereo @
    Vcc = 3V
■ THD+N < 0.5% Max @ 20mW into 32Ω BTL,
    50Hz < Frequency < 20kHz
■ 32-step digital volume control from -
    34.5dB to +12dB
■ +6dB power up volume and full standby
■ 8 different output modes
■ Pop & click reduction circuitry
■ Low shutdown current (< 100nA)
■ Thermal shutdown protection
■ Flip-chip package 18 x 300µm bumps
   
Applications
■ Mobile Phones