TS2007

TS2007 3W filter-free Class D audio power amplifer with 6-12dB fixed gain select Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ www.DataSheet4U.com Operating range from VCC=2.4V to 5.5V Standby mode active low Output power: 1.4W @5V or 0.45W @ 3.0V into 8Ω with 1% THD+N max. Output power: 2.3W @5V or 0.75W @ 3.0V into 4Ω with 1% THD+N max. Fixed gain select: 6dB or 12dB Low current consumption Efficiency: 88% typ. Signal-to-noise ratio: 94dB typ. PSRR: 63dB typ @ 217Hz with 6dB gain. PWM base frequency: 280kHz Low pop & click noise Thermal shutdown protection DFN8 3x3mm package TS2007IQT - DFN8 TS2007IQT - DFN8 ■ ■ 1 2 3 4 8 7 6 5 Applications ■ ■ ■ Cellular phone PDA Notebook PC Description The TS2007 is a class D power audio amplifier. Able to drive up to 1.4W into an 8 Ω load at 5V, it achieves outstanding efficiency compared to typical class AB audio power amplifier. This device allows to switch between two different gains: 6 or 12dB via a logic signal on the GS pin. A pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5ms. A standby function (active low) allows to lower the current consumption down to 10nA typ. The TS2007 is available in DFN8 3x3mm leadfree packages. May 2007 Rev 2 1/29 www.st.com 29 Contents TS2007 Contents 1 2 3 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electri...