700 - mW的MONO低压音频功率放大器 700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER
description
The TPA711 is a bridge-tied load BTL or single-ended SE audio power amplifier developed especially for low-voltage applications where internal speakers and external earphone operation are required. Operating with a 3.3-V supply, the TPA711 can deliver 250-mW of continuous power into a BTL 8-Ω load at less than 0.6% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation is optimized for narrower band applications such as wireless communications.
Fully Specified for 3.3-V and 5-V Operation
Wide Power Supply Compatibility
2.5 V – 5.5 V
Output Power
– 700 mW at VDD= 5 V, BTL, RL= 8 Ω
– 85 mW at VDD= 5 V, SE, RL= 32 Ω
– 250 mW at VDD= 3.3 V, BTL, RL= 8 Ω
– 37 mW at VDD= 3.3 V, SE, RL= 32 Ω
Shutdown Control
– IDD= 7 µA at 3.3 V
– IDD= 50 µA at 5 V
BTL to SE Mode Control
Integrated Depop Circuitry
Thermal and Short-Circuit Protection
Surface-Mount Packaging
– SOIC
– PowerPADMSOP