Overview
The NXP TDF8534HH/N2K is a member of the TDF853x family of ultra-efficient Class-D amplifiers designed to deliver high-quality audio in automotive applications. These amplifiers are optimized for use in vehicles that support 5.5 V stop-start requirements, ensuring a seamless audio experience. The TDF8534HH/N2K is particularly suited for automotive head-unit radios, sound systems, and engine sound design, including active noise-cancellation systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 5 |
| Supply Voltage | 5.5 V to 25 V |
| Maximum Output Power per Channel | 80 W |
| Total Harmonic Distortion + Noise (THD+N) | 0.005% |
| Noise Floor | 26 µV |
| Idle Power Dissipation | 3.5 W |
| Load Impedance | 2 or 4 Ω |
| Interleaved Mode | Yes |
Key Features
- Three, four, or five 2 or 4 Ω load Class-D BTL channels, with the ability for two BTL channels to combine and drive a 1 Ω load.
- Feedback after low-pass filter for lower BOM cost and better audio quality.
- Digital input in TDM/I²S format for easy board layout.
- Line-driver mode to drive an external amplifier via direct loudspeaker cable.
- Quality in accordance with AEC-Q100 standards.
- Diagnostic features including startup diagnostic for AC and DC coupled loads, supply voltage feedback with 8-bit resolution, selectable clip detection, and IEEE 1194.1-compliant board-level boundary scan.
- Protection features such as independent output current per channel with selectable thresholds, load dump protection (50 V), over- and undervoltage protection, thermal fold-back, and thermal protection.
- Optional interleaved power stages for improved EMC and reduced output-filter cost/complexity.
Applications
- Automotive head-unit radios.
- Automotive sound systems.
- Automotive-engine sound design, including active noise-cancellation systems and generating ambient and/or engine sounds in electric vehicles.
Q & A
- What is the TDF8534HH/N2K used for?
The TDF8534HH/N2K is used in automotive applications for high-quality audio in head-unit radios, sound systems, and engine sound design.
- How many channels does the TDF8534HH/N2K have?
The TDF8534HH/N2K has five Class-D BTL channels.
- What is the supply voltage range for the TDF8534HH/N2K?
The supply voltage range is from 5.5 V to 25 V.
- What is the maximum output power per channel?
The maximum output power per channel is 80 W.
- What is the Total Harmonic Distortion + Noise (THD+N) for the TDF8534HH/N2K?
The THD+N is 0.005%.
- Does the TDF8534HH/N2K support interleaved mode?
Yes, it supports interleaved mode.
- What are the key diagnostic features of the TDF8534HH/N2K?
The key diagnostic features include startup diagnostic for AC and DC coupled loads, supply voltage feedback with 8-bit resolution, selectable clip detection, and IEEE 1194.1-compliant board-level boundary scan.
- What protection features does the TDF8534HH/N2K have?
The protection features include independent output current per channel with selectable thresholds, load dump protection (50 V), over- and undervoltage protection, thermal fold-back, and thermal protection.
- Is the TDF8534HH/N2K compliant with any automotive standards?
Yes, it is compliant with AEC-Q100 standards.
- Can the TDF8534HH/N2K be used in active noise-cancellation systems?
Yes, it is ideally suited for use in active noise-cancellation systems.
