Overview
The TBA820M is a monolithic integrated audio amplifier produced by STMicroelectronics. It is designed for use as a low-frequency class B power amplifier and is packaged in an 8-lead dual-in-line plastic package. This amplifier is suitable for a wide range of applications, including portable radios, cassette recorders, and players, due to its wide operating supply voltage range of 3 to 16V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vs) | 3 to 16 | V |
| Output Power (Po) | 2W at 12V/8Ω, 1.6W at 9V/4Ω, 1.2W at 9V/8Ω | W |
| Output Peak Current (Io) | 1.5 A | A |
| Quiescent Drain Current (Id) | 4 mA (typ) | mA |
| Input Resistance (Ri) | 5 MΩ | Ω |
| Frequency Response | 25 to 7,000 Hz (RL = 8Ω, C5 = 1000 μF, Rf = 120Ω, CB = 680 pF) | Hz |
| Harmonic Distortion | 0.4% (typ) at Po = 500 mW, RL = 8Ω, f = 1 kHz, Rf = 120Ω | % |
| Thermal Resistance (Rth-j-amb) | 100 °C/W | °C/W |
| Storage and Junction Temperature | -40 to 150 °C | °C |
Key Features
- Wide operating supply voltage range: 3 to 16V
- Low quiescent circuit current: 4 mA (typ)
- Good ripple rejection
- Minimum number of external components required
- No cross-over distortion
- Low power dissipation
- Low harmonic distortion: 0.2% typical
- Performance specifications within 0 to 70°C operating temperature range
Applications
The TBA820M is commonly used in various audio amplifier applications, including:
- Portable radios
- Cassette recorders and players
- Portable speakers
- Musical instruments
- Small audio systems
Q & A
- What is the TBA820M?
The TBA820M is a monolithic integrated audio amplifier designed for use as a low-frequency class B power amplifier.
- Who manufactures the TBA820M?
The TBA820M is manufactured by STMicroelectronics.
- What is the supply voltage range of the TBA820M?
The supply voltage range of the TBA820M is 3 to 16V.
- What is the maximum output power of the TBA820M?
The maximum output power of the TBA820M is 2W at 12V/8Ω, 1.6W at 9V/4Ω, and 1.2W at 9V/8Ω.
- What is the quiescent drain current of the TBA820M?
The quiescent drain current of the TBA820M is 4 mA (typ).
- Does the TBA820M have good ripple rejection?
Yes, the TBA820M has good ripple rejection.
- What is the harmonic distortion of the TBA820M?
The harmonic distortion of the TBA820M is typically 0.4% at Po = 500 mW, RL = 8Ω, f = 1 kHz, Rf = 120Ω.
- What is the operating temperature range of the TBA820M?
The operating temperature range of the TBA820M is 0 to 70°C.
- What are some common applications of the TBA820M?
The TBA820M is commonly used in portable radios, cassette recorders, portable speakers, musical instruments, and small audio systems.
- Is the TBA820M available in other packages besides DIP-8?
No, the TBA820M is primarily available in an 8-lead dual-in-line plastic package (DIP-8).
