TS2007 数据手册 ( 数据表 ) - STMicroelectronics

Description
The TS2007 is a class D power audio amplifier. Able to drive up to 1.4 W into an 8 Ω load at 5 V, it achieves outstanding efficiency compared to typical class AB audio power amplifiers.
This device allows switching between two different gains: 6 or 12dB via a logic signal on the GS pin. A pop & click reduction circuitry provides low on/off switching noise while allowing the device to start within 5 ms. A standby function (active low) allows lowering the current consumption down to 10 nA typ.
The TS2007 is available in DFN8 3 x 3 mm lead-free packages.

FEATUREs
■ Operating range from VCC = 2.4 V to 5.5 V
■ Standby mode active low
■ Output power: 1.4 W at 5 V or 0.45 W at 3.0 V
   into 8 Ω with 1% THD+N max.
■ Output power: 2.3 W at 5 V or 0.75 W at 3.0 V
   into 4 Ω with 1% THD+N max.
■ Fixed gain select: 6 dB or 12 dB
■ Low current consumption
■ Efficiency: 88% typ.
■ Signal-to-noise ratio: 94 dB typ.
■ PSRR: 63 dB typ at 217 Hz with 6 dB gain
■ PWM base frequency: 280 kHz
■ Low pop & click noise
■ Thermal shutdown protection
■ DFN8 3 x 3 mm package

APPLICATIONs
■ Cellular phones
■ PDAs
■ Notebook PCs