Overview
The TDF8546TH/N2,118 is a high-performance, I2C-bus controlled, quad-channel audio amplifier produced by NXP USA Inc. This integrated circuit is designed to deliver exceptional audio quality and efficiency, making it suitable for a variety of audio applications. The amplifier features a Class AB architecture and is capable of delivering up to 45 watts of output power per channel. It is known for its best-in-class efficiency, reducing heat generation and enhancing overall system reliability.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Supply Voltage (VP) | RL = 4 Ω | 6 | 14.4 | 18 | V |
| Operating Supply Voltage (VP) | RL = 2 Ω | 6 | 14.4 | 16 | V |
| Quiescent Current (Iq) | No load; VP = 7 V | - | 190 | - | mA |
| Off-state Current (Ioff) | VSTB = 0.4 V | - | 4 | 10 | μA |
| Output Power (Po) | RL = 4 Ω; VP = 14.4 V; THD = 0.5% | 18 | 20 | - | W |
| Output Power (Po) | RL = 4 Ω; VP = 14.4 V; THD = 10% | 23 | 25 | - | W |
| Output Power (Po) | RL = 2 Ω; VP = 14.4 V; THD = 0.5% | 29 | 32 | - | W |
Key Features
- I2C-bus control for flexible configuration and diagnostics.
- Quad-channel Class AB amplifier with up to 45 watts of output power per channel.
- High efficiency, reducing heat generation and enhancing system reliability.
- Support for various operating modes, including high gain/low gain and line driver modes.
- Start-up diagnostics and amplifier switch-off time control via I2C-bus.
- Operating temperature range from -40°C to +150°C.
Applications
The TDF8546TH/N2,118 is suitable for a wide range of audio applications, including:
- Automotive audio systems.
- Home audio equipment.
- Professional audio systems.
- Consumer electronics requiring high-quality audio amplification.
Q & A
- What is the maximum output power per channel of the TDF8546TH/N2,118?
The maximum output power per channel is up to 45 watts. - What is the operating supply voltage range for the TDF8546TH/N2,118?
The operating supply voltage range is from 6 V to 18 V for RL = 4 Ω and from 6 V to 16 V for RL = 2 Ω. - How is the TDF8546TH/N2,118 controlled?
The TDF8546TH/N2,118 is controlled via the I2C-bus, allowing for flexible configuration and diagnostics. - What are the different operating modes supported by the TDF8546TH/N2,118?
The amplifier supports high gain/low gain and line driver modes. - What is the quiescent current of the TDF8546TH/N2,118?
The quiescent current is typically 190 mA at no load with VP = 7 V. - What is the off-state current of the TDF8546TH/N2,118?
The off-state current is typically 4 μA with VSTB = 0.4 V. - What is the temperature range for the TDF8546TH/N2,118?
The operating temperature range is from -40°C to +150°C. - What are some common applications for the TDF8546TH/N2,118?
Common applications include automotive audio systems, home audio equipment, professional audio systems, and consumer electronics requiring high-quality audio amplification. - How does the TDF8546TH/N2,118 manage start-up diagnostics?
The start-up diagnostics are managed via the I2C-bus, allowing for comprehensive diagnostic checks during start-up. - What is the amplifier switch-off time for the TDF8546TH/N2,118?
The amplifier switch-off time is typically between 250 ms to 750 ms via the STB pin.
