NXP stereo-
channel Class-D
audio amplifier
TDF8597TH
Ultra-efficient 2-channel Class-D amplifier
for seamless audio in hybrid cars
With support for 6 V stop-start applications, this ultra-efficient device delivers audiophile
sound quality in a proven, compact format.
KEY FEATURES
`
Outstanding sound performance confirmed by customer
feedback
- Harmonics
- THD
- Plop
- Noise level
- Frequency range
`
Energy efficiency and start-stop support
- Ultra-efficient 2-channel Class-D amplifier
• Output power: 2 x 70 W
• Supply voltage: 6 to 24 V
- Uninterrupted sound experience in cars with start-stop
systems
- Low operating voltage: down to 6 V
- Differential Inputs for reduce noise
`
Protection and diagnostics for automotive robustness
- Thermal fold-back in hardware for optimal sound under
maximum power conditions
- Protection against slamming a door or the trunk lid
- Full range of diagnostics increases quality, reduces yield
loss, and lowers screening costs
`
AEC-Q100 ensuring automotive quality
`
Small HSOP36 package (SOT851-2)
APPLICATIONS
`
Automotive head-unit radios
`
Automotive sound systems
`
Consumer hi-fi applications
NXP’s highly integrated, high-performance Class-D amplifiers
for automotive applications bring concert-quality sound to
in-car entertainment systems. The TDF8597, one of the latest
additions to NXP’s portfolio, is an ultra-efficient, quad-channel
Class-D audio amplifier that supports the 6 V requirement
for start-stop vehicles. It enables a rich, seamless audio
experience in hybrid electric vehicles, micro-hybrids, mild
hybrids, and other energy-saving vehicles that use start-stop
systems.
The TDF8597 is optimized for use in the head-unit radio and
in sound-system platforms. It also supports new applications,
such as ambient sound systems, which generate engine sounds
in electric vehicles, and active noise-cancellation systems.
The TDF8597 is an ultra-efficient device, generating
70 W per channel at the maximum supply voltage of 24 V.
It delivers optimal sound under maximum power conditions,
offers outstanding EMC performance, and uses a thermal
fold-back, integrated in hardware, to protect the device from
overheating.
A full range of diagnostics and protections ensure full
robustness in the harsh automotive environment. Controlled
by the I
2
C bus, the diagnostics cover familiar functions such
as speaker protection, clip detection, and AC load tweeter
detection, and also include unique features for start-up
functions.
Block diagram
www.nxp.com
© 2013 NXP Semiconductors N.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The
information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and
may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof
does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Date of release: April 2013
Document order number: 9397 750 17409
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