Philips UM10155 - Printed-circuit Board Layout

UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
User manual Rev. 02 — 5 September 2006 5 of 12
Philips Semiconductors
UM10155
Discrete Class D High Power Audio Amplifier
3. Printed-circuit board layout
Table 1. Connections
Connector Function Remarks
J1 audio in - signal use together with J2
J2 audio in - ground use together with J1
J3 amplifier enable when connected to ground (J4)
the amplifier is enabled
J4 ground use together with J3
J5 positive supply voltage 30 V to 45 V (no need for a
stabilized power supply)
J6 positive current sense can optionally be used in an
overcurrent protection scheme
J7 power supply ground 0 V
J8 negative current sense can optionally be used in an
overcurrent protection scheme
J9 negative supply voltage −30 V to −45 V (no need for a
stabilized power supply)
J10 loudspeaker output use together with J11
J11 loudspeaker ground use together with J10
Fig 3. Top copper layout Fig 4. Bottom copper layout
001aaf150
001aaf151