Overview
The TDF8546JS/N1,512 is a high-performance, I2C-bus controlled, 4-channel (quad) audio power amplifier designed by NXP USA Inc. This component is part of a new generation of complementary quad Bridge-Tied Load (BTL) audio power amplifiers, specifically intended for automotive applications. It offers advanced features such as programmable gain, soft mute, and various protection mechanisms, making it a robust and versatile solution for automotive audio systems.
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 = 14.4 V | - | 260 | 350 | mA |
| Quiescent Current (Iq) | No load; VP = 7 V | - | 190 | - | mA |
| Off-State Current (Ioff) | VSTB = 0.4 V | - | 4 | 10 | μA |
| Output Voltage (VO) | DC amplifier on; high gain/low gain mode | 6.6 | 7.1 | 7.6 | V |
| Package | - | - | - | - | 27-PowerSMD Module (HSOP36) |
Key Features
- Programmable gain (26 dB and 16 dB) independently selectable for front and rear channels.
- Independent selectable soft mute of front and rear channels.
- AC load (tweeter) detection with low and high current mode.
- Programmable clip detect: 2%, 5%, or 10%.
- Programmable thermal pre-warning.
- Line driver mode supports engine start at a battery voltage as low as 6 V.
- Depop, short-circuit, and thermal protection.
Applications
The TDF8546JS/N1,512 is primarily designed for automotive audio systems. Its features and specifications make it suitable for a variety of applications within vehicles, including car stereos, infotainment systems, and other audio-related components. The amplifier's robust design and protection mechanisms ensure reliable operation in the demanding automotive environment.
Q & A
- What is the TDF8546JS/N1,512 used for?
The TDF8546JS/N1,512 is used in automotive audio systems, providing high-performance audio amplification with advanced control and protection features.
- What is the operating supply voltage range for the TDF8546JS/N1,512?
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.
- What are the programmable gain options for the TDF8546JS/N1,512?
The amplifier offers programmable gain options of 26 dB and 16 dB, independently selectable for front and rear channels.
- Does the TDF8546JS/N1,512 have protection mechanisms?
Yes, it includes depop, short-circuit, and thermal protection mechanisms.
- What is the package type of the TDF8546JS/N1,512?
The package type is 27-PowerSMD Module (HSOP36).
- Can the TDF8546JS/N1,512 operate at low battery voltages?
Yes, it supports engine start at a battery voltage as low as 6 V in line driver mode.
- How does the TDF8546JS/N1,512 handle AC load detection?
The amplifier includes AC load (tweeter) detection with low and high current mode.
- Is the TDF8546JS/N1,512 I2C-bus controlled?
Yes, it is controlled via the I2C-bus, allowing for various programmable features.
- What are the quiescent current values for the TDF8546JS/N1,512?
The quiescent current is typically 260 mA at VP = 14.4 V and 190 mA at VP = 7 V.
- Does the TDF8546JS/N1,512 have a soft mute feature?
Yes, it has an independent selectable soft mute feature for front and rear channels.
