SA58672 NXP Semiconductors, SA58672 Datasheet - Page 17

• Manufacturer Part Number: SA58672
• Manufacturer: NXP Semiconductors

NXP Semiconductors
12. Test information
SA58672_4
Product data sheet
12.1 Test setup for typical characterization curves
The SA58672 demo board shown in
are used to provide the characterization curves. The test setup diagram in
shows the setup details. The output load configuration is comprised of 2
inductors and precision power load resistor. This passive load emulates a small, low
power speaker; it facilitates efficiency measurements. A speaker may be substituted for
the passive load to yield similar results.
Fig 15. SA58672 test setup block diagram
(1) DUT is the SA58672 evaluation demo board.
ANALYZER
AUDIO
AP585
Rev. 04 — 8 June 2009
INP
INM
SUPPLY
POWER
+
Figure 14
DUT
OUTM
OUTP
and the APA (Audio Precision Analyzer)
15 H
15 H
3.0 W mono class-D audio amplifier
R L
LOW-PASS FILTER
MEASUREMENT
AUX0025
INPUTS
30 kHz
AP585
002aad855
SA58672
© NXP B.V. 2009. All rights reserved.
Figure 15
15 H power
17 of 27