器件名称:
TS4990
功能描述:
1.2 W audio power amplifier with active low standby mode
文件大小:
716.6KB 共32页
简 介:
TS4990 1.2 W audio power amplifier with active low standby mode Features ■ ■ ■ ■ ■ ■ ■ ■ TS4990IJT/TS4990EIJT - Flip-chip 9 bumps Operating range from VCC = 2.2 V to 5.5 V 1.2 W output power @ VCC = 5 V, THD = 1%, F = 1 kHz, with 8Ω load Ultra-low consumption in standby mode (10 nA) 62 dB PSRR at 217 Hz in grounded mode Near-zero pop and click Ultra-low distortion (0.1%) Unity gain stable Available in 9-bump flip-chip, miniSO-8 and DFN8 packages TS4990IST - MiniSO-8 VinGND BYPASS Vin+ VCC STBY VOUT1 GND VOUT2 Applications ■ ■ ■ ■ Mobile phones (cellular / cordless) Laptop / notebook computers PDAs Portable audio devices TS4990IQT - DFN8 STANDBY BYPASS VIN+ VIN- Description The TS4990 is designed for demanding audio applications such as mobile phones to reduce the number of external components. This audio power amplifier is capable of delivering 1.2 W of continuous RMS output power into an 8Ω load at 5 V. An externally controlled standby mode reduces the supply current to less than 10 nA. It also includes an internal thermal shutdown protection. The unity-gain stable amplifier can be configured by external gain setting resistors. 1 2 3 4 8 7 6 5 VOUT 2 GND Vcc VOUT 1 TS4990ID/TS4990IDT - SO-8 STBY BYPASS 1 8 VOUT2 GND VCC VOUT1 2 7 VIN+ VIN- 3 6 4 5 May 2008 Rev 12 1/32 www.st.com 32 Contents TS4990 Contents 1 2 3 4 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 Typical application schematics . . . . . . . . . . . . . .……
