TPA2013D1_16 Datasheet, PDF (13/40 Pages) Texas Instruments – Constant Output Power Class-D Audio Amplifier

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TPA2013D1
SLOS520A – AUGUST 2007 – REVISED MARCH 2016
8 Parameter Measurement Information
All parameters are measured according to the conditions described in Specifications. Figure 31 shows the setup
used for the typical characteristics of the test device.
C_I
+
Measurement
Output
C_I
–
TPA2013D1
IN+ OUT+
IN
V_DD
OUT–
GND
Load
30 kHz
Low-Pass
Filter
+
Measurement
Input
–
+
V_DD
–
1 mF
(1) C_I was shorted for any common-mode input voltage measurement. All other measurements were taken with a 1-μF C_I
(unless otherwise noted).
(2) A 33-μH inductor was placed in series with the load resistor to emulate a small speaker for efficiency measurements.
(3) The 30-kHz low-pass filter is required, even if the analyzer has an internal low-pass filter. An RC low-pass filter (100-
Ω, 47-nF) is used on each output for the data sheet graphs.
(4) L = 4.7 μH is used for the boost converter unless otherwise noted.
Figure 31. Test Set-Up for Graphs
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