TPA3100D2-Q1_15 Datasheet, PDF (30/38 Pages) Texas Instruments – 20-W STEREO CLASS-D AUDIO POWER AMPLIFIER

TPA3100D2-Q1
SLOS557 – SEPTEMBER 2008 ......................................................................................................................................................................................... www.ti.com
Table 3 shows recommended values of R_FILT and C_FILT based on common component values. The value of f_C
was originally calculated to be 28 kHz for an f_MAX of 20 kHz. C_FILT, however, was calculated to be 57,000 pF, but
the nearest values of 56,000 pF and 51,000 pF were not available. A 47,000-pF capacitor was used instead, and
f_C is 34 kHz, which is above the desired value of 28 kHz.
Table 3. Typical RC Measurement Filter Values
MEASUREMENT
Efficiency
All other measurements
R_FILT
(Ω)
1000
100
C_FILT
(pF)
5,600
56,000
30
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