TA8200AH

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8200AH Dual Audio Power Amplifier TA8200AH The TA8200AH is dual audio power amplifier for consumer applications. This IC provides an output power of 13 watts per channel (at VCC = 28 V, f = 1 kHz, THD = 10%, RL = 8 Ω). It is suitable for power amplifier of TV and home stereo. Features · High output power: Pout = 13 W/channel (Typ.) (VCC = 28 V, RL = 8 Ω, f = 1 kHz, THD = 10%) · Low noise: Vno = 0.14 mVrms (Typ.) (VCC = 28 V, RL = 8 Ω, GV = 34dB, Rg = 10 kΩ, BW = 20 Hz~20 kHz) · Very few external parts · Built in audio muting circuit · Built in thermal shut down protector circuit · Operating supply voltage range: VCC (opr) = 10~37 V (Ta = 25°C) Weight: 4.04 g (typ.) 1 2002-02-13 Block Diagram IN1 IN2 6 Ripple Filter IN1 4 AMP1 5 400 W 3 Pre-GND 1 400 W 20 kW 20 kW 2 IN2 AMP2 9 VCC OUT1 7 PW-GND 10 OUT2 12 8 11 TA8200AH VCC RL RL Application Information 1. Voltage gain The closed loop voltage gain is determined by R1, R2. GV = 20log R1 + R2 R2 (dB) = 20log 20 kW + 400 400 W W = 34(dB) = 34 (dB) Amplifier with gain < 34dB GV = 20log R1 + R2 + R3 R2 + R3 (dB) When R3 = 220 W GV ~- 30 (dB) is given. Input 4/2 7/12 R2 5/1 R1 400 W 20 kW Output Figure 1 Input 4/2 R3 5/1 R2 R1 400 W 20 kW 7/12 Output Figure 2 2 2002-02-13 TA8200AH 2. Muting (1) Audio muting This IC is possible to make audio muting operation by using 11 pin muting terminal. In Fig. 3, the equivalent ci...