Philips TDA1562Q - Page 54

Philips Semiconductors
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TDA1562Q application note
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©
Koninklijke Philips Electronics N.V.
2004
. All rights reserved.
Application note Rev. 01.02 — 05 May 2006 54 of 62
Finally, adding a 50mΩ resistor between the output and the diode gave some more
improvement.
The total circuitry needed for optimum reliability in dual voice coil applications is shown in
fig.43.
(1)
Fig 42. Protection against positive pulses at the output.
Parasitic
Clift
Vsupply
Pgnd
SPEAKER
1N4007
Schottky
ROHM RSX301L