TA2131FLG

TA2131FLG TOSHIBA Bipolar Linear IC Silicon Monolithic TA2131FLG www.datasheet4u.com Low Current Consumption Headphone Amplifier for Portable MD Player (With Bass Boost Function) The TA2131FLG is a low current consumption headphone amplifier developed for portable digital audio. It is particularly well suited to portable MD players that are driven by a single dry cell. It also features a built-in bass boost function with AGC, and is capable of bass amplification of DAC output and analog signals such as tuner. An ultra-compact QON package is utilized, enabling sets to be compacted. Features 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: 0.05 g (typ.) Actual product display name: 2131 1 2006-04-19 TA2131FLG Block Diagram VCC1 VCC1 BEEP OFF ON PW SW OFF ON MT SW OFF ON BST SW BEEP IN 15 BEEP GND Vref IN 13 Vref Vref www.datasheet4u.com 18 MT TC 19 VCC1 VCC (2.8 V) 20 PW SW 17 16 14 MUTE SW BOOST SW 12 LPF1 11 ADD BST NF1 10 Vref INB 21 DAC OUT Vref BST1 Vref LPF2 22 INA BEEP OUTB BEEP OUTA BST2 PW A PW B 9 BST NF2 8 BST OUT Vref 23 Vref 24 BST AGC 1...