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TDA8922 Datasheet, PDF (22/36 Pages) NXP Semiconductors – 2 x 25 W class-D power amplifier
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Philips Semiconductors
2 × 25 W class-D power amplifier
Objective specification
TDA8922
16.12 Curves measured in reference design
The curves illustrated in Figs 20 and 21 are measured with
a specified load impedance. Spread in ZL (e.g. due to the
frequency characteristics of the loudspeaker) can trigger
the maximum current protection circuit; see Section 16.6.
The curves illustrated in Figs 30 and 31 show the effects
of supply pumping when only one single-ended channel is
driven with a low frequency signal; see Section 16.7.
102
handbook, halfpage
THD + N
(%)
10
MGX324
1
10 −1
10 −2
10 −3
10 −2
10 −1
(1)
(2)
(3)
1
10
102
Po (W)
2 × 8 Ω SE; VP = ±20 V.
(1) 10 kHz.
(2) 1 kHz.
(3) 100 Hz.
Fig.12 THD + N as a function of output power.
102
handbook, halfpage
THD + N
(%)
10
1
10 −1
10 −2
10 −3
10
102
MGX327
(1)
(2)
103
104
105
fi (Hz)
2 × 8 Ω SE; VP = ±20 V.
(1) Po = 10 W.
(2) Po = 1 W.
Fig.13 THD + N as a function of input frequency.
2003 Mar 20
22
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