Texas Instruments TPA6205A1 1.25W Mono Fully Differential Amplifier
Texas Instruments TPA6205A1 1.25W Mono Fully Differential Amplifier is designed to drive a speaker with at least 8Ω impedance while consuming less than 37mm2 (ZQV package option) total printed-circuit-board (PCB) area in most applications. This device operates from 2.5V to 5.5V, drawing only 1.7mA of quiescent supply current. The TPA6205A1 is available in the space-saving 2mm × 2mm MicroStar Junior BGA package and the space-saving 3mm × 3mm QFN (DRB) package. Features like 85dB PSRR from 90Hz to 5kHz, improved RF-rectification immunity, and a small PCB area makes the Texas Instruments TPA6205A1 ideal for wireless handsets. A fast start-up time of 4µs with minimal pop makes the TPA6205A1 ideal for PDA applications.
Features
- 1.25W into 8Ω from a 5V supply at THD = 1% (typical)
- The shutdown pin has 1.8V compatible thresholds
- Only five external components
- Improved PSRR (90dB) and wide supply voltage (2.5V to 5.5V) for direct battery operation
- Fully differential design reduces RF rectification
- Improved CMRR eliminates two input coupling capacitors
- C(BYPASS) is optional due to fully differential design and high PSRR
- 1.7mA typical low supply current
- Shutdown current < 10µA
- Available in a 3mm × 3mm QFN package (DRB)
- Available in an 8-pin PowerPAD™ MSOP (DGN)
- Available in a 2mm x 2mm MicroStar Junior™ BGA package (ZQV)
Applications
- Designed for wireless handsets, PDAs, and other mobile devices
- Compatible with low power (1.8V logic) I/O threshold control signals
Functional Block Diagram
Published: 2021-04-26
| Updated: 2022-03-11