Overview
The TPA6203A1DRBR is a 1.25-W mono fully differential audio power amplifier produced by Texas Instruments. This device is designed to drive a speaker with at least 8-Ω impedance, making it suitable for various portable and wireless applications. It operates from a supply voltage range of 2.5 V to 5.5 V and consumes a low quiescent supply current of 1.7 mA. The amplifier features a fully differential design, which reduces RF rectification and eliminates the need for two input coupling capacitors. It is available in several package options, including the 2 mm x 2 mm MicroStar Junior™ BGA package and the 3 mm x 3 mm QFN package.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage, VDD | 2.5 | 5.5 | V | |
| High-Level Input Voltage, VIH (SHUTDOWN) | 2 | V | ||
| Low-Level Input Voltage, VIL (SHUTDOWN) | 0.8 | V | ||
| Common-Mode Input Voltage, VIC | 0.5 | VDD-0.8 | V | |
| Operating Free-Air Temperature, TA | -40 | 85 | °C | |
| Load Impedance, ZL | 6.4 | 8 | Ω | |
| Output Offset Voltage (Differential) | 9 | mV | ||
| Power Supply Rejection Ratio (PSRR) | -90 | -70 | dB | |
| Common-Mode Rejection Ratio (CMRR) | -62 | -55 | dB |
Key Features
- Low Supply Current: 1.7 mA typical.
- Shutdown Control: Less than 10 µA.
- Improved PSRR: 90 dB from 90 Hz to 5 kHz.
- Fully Differential Design: Reduces RF rectification and eliminates the need for two input coupling capacitors.
- High CMRR: Eliminates two input coupling capacitors.
- Optional Bypass Capacitor: Due to fully differential design and high PSRR.
- Fast Start-Up Time: 4 µs with minimal pop.
- Space-Saving Packages: Available in 2 mm x 2 mm MicroStar Junior™ BGA and 3 mm x 3 mm QFN packages.
Applications
The TPA6203A1DRBR is ideal for various portable and wireless applications, including:
- Wireless handsets.
- Personal Digital Assistants (PDAs).
- Other battery-powered audio devices requiring low power consumption and high audio quality.
Q & A
- What is the typical supply current of the TPA6203A1DRBR?
The typical supply current is 1.7 mA.
- What is the shutdown current of the TPA6203A1DRBR?
The shutdown current is less than 10 µA).
- What is the power supply rejection ratio (PSRR) of the TPA6203A1DRBR?
The PSRR is 90 dB from 90 Hz to 5 kHz).
- What are the package options available for the TPA6203A1DRBR?
It is available in 2 mm x 2 mm MicroStar Junior™ BGA and 3 mm x 3 mm QFN packages).
- What is the common-mode rejection ratio (CMRR) of the TPA6203A1DRBR?
The CMRR is -62 dB to -55 dB depending on the supply voltage).
- What is the output offset voltage of the TPA6203A1DRBR?
The output offset voltage is typically 9 mV).
- What is the load impedance range for the TPA6203A1DRBR?
The load impedance range is 6.4 Ω to 8 Ω).
- What is the operating temperature range for the TPA6203A1DRBR?
The operating temperature range is -40°C to 85°C).
- What are some typical applications for the TPA6203A1DRBR?
Typical applications include wireless handsets, PDAs, and other battery-powered audio devices).
- How long does it take for the TPA6203A1DRBR to start up?
The start-up time is 4 µs with minimal pop).
