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TDA8933B Datasheet, PDF (29/42 Pages) NXP Semiconductors – Class D audio amplifier
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NXP Semiconductors
TDA8933B
Class D audio amplifier
102
THD+N
(%)
10
010aaa505
102
THD+N
(%)
10
010aaa506
1
10−1
(1)
10−2
(2)
1
10−1
(1)
(2)
10−2
10−3
10
102
103
104
105
fi (Hz)
10−3
10
102
103
104
105
fi (Hz)
a. VP = 25 V; RL = 2 × 8 Ω SE
b. VP = 17 V; RL = 2 × 4 Ω SE
(1) Po = 7 W
(2) Po = 1 W
Fig 13. Total harmonic distortion-plus-noise as a function of frequency
40
Gv(cl)
(dB)
30
(2)
(1)
20
010aaa507
0
SVRR
(dB)
−20
−40
(2)
−60 (1)
010aaa508
10
10
102
103
104
105
fi (Hz)
Ri = 0 Ω; Vi = 100 mV (RMS); Cse = 1000 µF
(1) RL = 2 × 4 Ω SE at VP = 17 V
(2) RL = 2 × 8 Ω SE at VP = 25 V
Fig 14. Gain as a function of frequency
−80
10
102
103
104
105
fi (Hz)
Vripple = 500 mV (RMS) referenced to ground;
Shorted input; CHVPREF = 47 µF
(1) VP = 17 V; RL = 2 × 4 Ω SE
(2) VP = 25 V; RL = 2 × 8 Ω SE
Fig 15. Supply voltage ripple rejection as a function of
frequency
TDA8933B_1
Preliminary data sheet
Rev. 01 — 23 October 2008
© NXP B.V. 2008. All rights reserved.
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