Philips TDA1562Q - Differential Inputs; 3 Switch On;Off Behavior

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 14 of 62
Fig 6. Temperature diagnostics
2.4 Differential inputs
The TDA1562Q has differential (symmetrical) inputs. A symmetrical input has the
advantage that common mode interference that is picked up in the input lines is
effectively suppressed.
Especially in an automotive application where there is much interference by external
sources, the suppression of noise is very important.
3. Switch on/off behavior
When the amplifier is switched on, it should be kept in the mute condition long enough to
ensure that the input capacitors are fully biased. When the amplifier is switched from