TDA8928J Datasheet, PDF (18/23 Pages) NXP Semiconductors – Power stage 2 x 10 or 1 x 20 W class-D audio amplifie

Philips Semiconductors
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
Preliminary specification
TDA8928J
100
handbook, halfpage
S/N
(dB)
80
60
40
20
0
10^−2
10^−1
1
MGX387
10
10²
Po (W)
2 × 8 Ω SE; V_P = ±12.5 V.
Fig.13 S/N as function of output power.
0
handboo_αk,_ch_salfpage
(dB)
−20
MGX388
−40
−60
(1)
(2)
−80
−100
10
10²
10³
10⁴
10⁵
fi (Hz)
2 × 8 Ω SE; V_P = ±12.5 V.
(1) P_o = 1 W.
(2) P_o = 10 W.
Fig.14 Channel separation as function of
frequency.
35
handbook, halfpage
G
(dB)
30
MDB624
25
20
15
10
10
10²
10³
10⁴
10⁵
fi (Hz)
2 × 8 Ω SE; V_P = ±12.5 V; V_i = 100 mV.
Fig.15 Gain as function of frequency.
2004 May 05
handbook,²h⁴alfpage
Po
(W)
20
MGX389
16
(1)
12
(2)
8
4
10
12
14
16
18
20
VP (V)
THD + N = 10 %; f_i = 1 kHz.
(1) 2 × 8 Ω SE.
(2) 2 × 16 Ω SE.
Fig.16 Output power as function of supply voltage.
18