TA2131FNG - Toshiba Semiconductor

TA2131FNG Low Current Consumption Headphone Amplifier

of Operation TA2131FNG has a bass boost function for bass sound reproduction built-in to the power amplifier. With the bass boost function, at medium levels and lower, channel A and channel B are added for the low frequency component, and output to BST amplifier 2 (BST2) in negative phase. That signal is inverted and added before being subjected to bass boos.

Features

a built-in bass boost function with AGC, and is capable of bass amplification of DAC output and analog signals such as tuner. Features
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• Low current consumption: ICCQ (VCC1) = 0.55 mA (typ.) ICCQ (VCC2) = 0.20 mA (typ.) Output power: Po = 8 mW (typ.) (VCC1 = 2.8 V, VCC2 = 1.2 V, f = 1 kHz, THD = 10%, RL = 16 Ω) Low noise: Vno = −102dBV (typ.) Built-in low-pass boost (with AGC) I/O pin for beep sound Outstanding ripple rejection ratio Built-in power mute Built-in power ON/OFF switch Operating supply voltage range (Ta = 25°C): VCC1 = 1.8~4.5 V VCC2 = 0.9~4.5 V Weight: 0.14 g (ty.