metronom 2.0 for TDA1540 - TDA1541A

The metronom modules are installed beneath the D/A converters or used as a replacement for an existing socket. With their ultra-compact design, they can be used in all devices and significantly increase the linearity as well as the spatial precision of the audio signal.

Phase-locked clock coupling: The internal, free-running DEM oscillator of the converter is rigidly coupled to the bit clock of the shift register via an external circuit.
Elimination of beats: The synchronization avoids intermodulation distortion that would otherwise be caused by the frequency difference between the data stream and the DEM clock.
Low-level linearity improvement: The bit-precise control of the internal current sources reduces conversion errors at the zero crossing and improves linearity at low signal levels.
Timebase stabilization: The modification suppresses jitter-like artifacts and phase noise induced by a drifting oscillator within the chip architecture.
Optimized interference spectrum: Energy from switching operations is shifted into fixed, inaudible frequency ranges, facilitating the filtering of the output signal.

Instruments and voices gain sharper contours and a more stable position within a deeper soundstage. Especially during quiet musical passages, a subtle technical veil disappears, allowing the finest details and ambient information to emerge more clearly. The bass range benefits from more precise impulse response, resulting in a tighter and more powerful low-end reproduction.
The metronom modules can be used with or without a digital filter.

metronom 2.0 for TDA1540
• DEM synchronization
• BIT correction
• Frequency compensation
• Class A operation

• 2 metronom TDA1540 98�buy

metronom 2.0 for TDA1541A
• DEM synchronization
• BIT correction
• Class A operation

• 1 metronom TDA1541A - I2S 58�buy

A TDA1541 without an A has no function in the module.

• 1 metronom TDA1541A - sim 58�buy

I2S, simultaneous, and balanced data input are possible.

Notes
In the vast majority of cases, using the first metronom TDA1541A - I2S module is the better choice; only a vanishingly small number of devices utilize a different data mode.
While it is indeed possible to use a TDA1541 (without the 'A' suffix) in the metronom TDA1541A - sim module, the resulting performance falls short of that achieved with a TDA1541A. Due to an internal ceramic capacitor -the design of which, at the time, was still susceptible to aging- replacing the unit with a TDA1541A is recommended.

no oversampling bridge
OP-amp metronom