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High end audio from Bolero 2016 unit maby others to.

Astro888
in Skoda Fabia Mk3 (2014-2021)

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Hi. im in to hi end car audio.

And i was a little dissepointed in the Bolero head unit in my Skoda Fabia III 2016.

I decided to open it up and maby do some mods to it. Adding RCA outputs if possible.

 

To my complete suprice was that the amplifier chip is not just an 4x mosfet amplifier but a 24bit/DAC also with selectable gain for high end low level output.

There must be some kind of mod or setting to do. Enabeling this function. So you can get high end low level outputs to a good amp, think no high level speaker converter anymore.

Be glad to hear some suggestions on this matter.

 

Best Regards,

Peter.

 

Here are the specs for the chip:

4-bit resolution
110 dB dynamic range (A-weighted)
SB-I (SB - improved) high efficiency operation
the highest ’non - class D’ efficiency
1 Ohm driving capability (only in PowerSO36
package)
– High output power capability:
4 x 28 W 4
Ω
@ 14.4 V, 1 kHz, THD = 10 %
– Max output power: 4 x 72 W 2
Ω
Flexible mode control:
– Full I
2
C bus driving 1.8 V/3.3 V) with four
addresses selectable (only for PowerSO36
package option)
– Independent front/rear play/ mute
– Four selectable gains for very-low noise
line-out function
– Digital diagnostic with DC and AC load
detections
Optional H/W control (no I
2
C bus)
Start-stop compatibility (operation down to 6 V)
Sample rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
Flexible serial data port (1.8 V / 3.3 V):
–I
2
S standard, TDM 4Ch, TDM 8Ch,
TDM 16Ch
Offset detector (play or mute mode)
Independent front/rear clipping detector
Programmable diagnostic pin
CMOS compatible enable pin
Thermal protection

 

Attatching a pdf also.

en.DM00090867.pdf

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