TPA2034D1中文资料具有固定 4V/V 增益的 2.75W 单声道、模拟输入 D 类音频放大器数据手册TI规格书

描述 Description

The TPA2032D1 (2V/V gain), TPA2033D1 (3V/V gain), and TPA2034D1 (4V/V gain) are 2.75–W high efficiency filter–free class–D audio power amplifiers, each in an approximately 1.5–mm × 1.5–mm wafer chip scale package (WCSP) that requires only one external component. The pinout is the same as the TPA2010D1 except that the external gain setting input resistors required by the TPA2010D1 are integrated into the fixed gain TPA203xD1 family. Features like –75dB PSRR and improved RF–rectification immunity with a very small PCB footprint (WCSP amplifier plus single decoupling cap) make the TPA203xD1 family ideal for wireless handsets. A fast start–up time of 3.2 ms with minimal pop makes the TPA203xD1 family ideal for PDA applications. In wireless handsets, the earpiece, speaker phone, and melody ringer can each be driven by a TPA203xD1. The TPA203xD1 family has a low 27–µV noise floor, A–weighted.

特性 Features

• Maximize Battery Life and Minimize Heat
• 3.0–mA Quiescent Current
• 88% at 400mW at 8
• Three Fixed Gain Versions
• TPA2033D1 has a gain of 3 V/V (9.5dB)
• Only One External Component Required
• Optimized PWM Output Stage Eliminates LC Output Filter
• Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
• Thermal and Short–Circuit Protection
• Wafer Chip Scale Packaging (WCSP)
• APPLICATIONS
• Ideal for Wireless Handsets, PDAs, and other mobile devices