TS4962中文资料3W无滤波D类音频功率放大器，支持低电平有效待机模式数据手册ST规格书

描述 Description

The TS4962 is a differential class-D BTL power amplifier. It can drive up to 2.2 W into a 4 Ω load and 1.4 W into an 8 Ω load at 5 V. It achieves outstanding efficiency (88% typ.) compared to standard AB-class audio amps.

The gain of the device can be controlled via two external gain setting resistors. Pop and click reduction circuitry provides low on/off switch noise while allowing the device to start within 5 ms. A standby function (active low) enables the current consumption to be reduced to 10 nA typical.

特性 Features

• Operating from VCC = 2.4 V to 5.5 V
• Standby mode active low
• Output power: 2.8 W into 4 Ω and 1.7 W into 8 Ω with 10 % THD+N maximum and 5 V power supply
• Output power: 2.2 W at 5 V or 0.7 W at 3.0 V into 4 Ω with 1 % THD+N maximum
• Output power: 1.4 W at 5 V or 0.5 W at 3.0 V into 8 Ω with 1 % THD+N maximum
• Adjustable gain via external resistors
• Low current consumption 2 mA at 3 V
• Efficiency: 88 % typical
• Signal to noise ratio: 85 dB typical
• PSRR: 63 dB typical at 217 Hz with 6 dB gain
• PWM base frequency: 280 kHz
• Low pop and click noise
• Available in DFN8 3 x 3 mm package