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TA2131FN

Toshiba Semiconductor
Part Number TA2131FN
Manufacturer Toshiba Semiconductor
Description Low Current Consumption Headphone Amplifier
Published May 29, 2009
Detailed Description TA2131FN TOSHIBA Bipolar Linear IC Silicon Monolithic TA2131FN Low Current Consumption Headphone Amplifier for Portable...
Datasheet PDF File TA2131FN PDF File

TA2131FN
TA2131FN

Overview
TA2131FN TOSHIBA Bipolar Linear IC Silicon Monolithic TA2131FN Low Current Consumption Headphone Amplifier for Portable MD Player (With Bass Boost www.
datasheet4u.
com Function) The TA2131FN 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.
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.
14 g (typ.
) 1 2002-04-19 TA2131FN Block Diagram BEEP OFF www.
datasheet4u.
com Vref Vref VCC1 VCC1 DAC OUT (2.
8 V) ON Vref IN 22 Vref BST BEEP GND IN SW 21 20 19 18 OFF ON OFF ON BST NF1 LPF1 24 23 Vref MT SW 17 PW SW 16 PW SW MT TC VCC1 15 14 INB 13 Vref BEEP BOOST MUTE SW SW BST1 BST2 BST AGC PW B PW A LPF2 1 BST NF2 2 BST OUT 3 AGC IN 4 DET 5 OUTB 6 PWR GND 7 OUTA 8 VCC2 9 BEEP OUTA 10 BEEP OUTB 11 INA 12 Vref RL Vref Vref RL +B (1.
2 V) DAC OUT 2 2002-04-19 TA2131FN Terminal Explanation (Terminal voltage: Typical terminal voltage at no signal with test circuit, VCC1 = 2.
8 V, VCC2 = 1.
2 V, Ta = 25°C) Terminal No.
Terminal Explanation Internal Circuit Terminal Voltage (V) www.
datasheet4u.
com 12 ADD 20 kW 20 kW 1 LPF2 BST amplifier 1 output (filter terminal) PWA AGC BST1 0.
61 BST2 AMP 23 20 kW 10 kW 12 kW 23 LPF1 ADD amplifier output (filter terminal) 13 PWB 2 kW 30 kW 0.
61 24 24 BST NF1 BST amplifier 1 NF Vref BST amplifier 2 NF ter...


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