TDA8929T Datasheet, PDF (27/36 Pages) NXP Semiconductors – Controller class-D audio amplifier

Philips Semiconductors
Controller class-D audio amplifier
Preliminary specification
TDA8929T
handbook,²h⁵alfpage
P
(W)
20
MLD609
15
(1)
(2)
10
(3)
5
010_−2
10^−1
1
10
10²
10³
Po (W)
V_P = ±25 V; f_i = 1 kHz:
(1) 2 × 4 Ω SE.
(2) 1 × 8 Ω BTL.
(3) 2 × 8 Ω SE.
Fig.22 Power dissipation as a function of output
power.
100
handbook, halfpage
η
(3)
(%)
80
(1)
(2)
MLD610
60
40
20
0
0
30
60
90
120
150
Po (W)
V_P = ±25 V; f_i = 1 kHz:
(1) 2 × 4 Ω SE.
(2) 1 × 8 Ω BTL.
(3) 2 × 8 Ω SE.
Fig.23 Efficiency as a function of output power.
handboo²k,⁰h⁰alfpage
Po
(W)
160
120
(1)
80
40
MLD611
(2)
(3)
(4)
0
10
15
20
25
30
35
VP (V)
THD + N = 0.5%; f_i = 1 kHz:
(1) 1 × 4 Ω BTL.
(2) 1 × 8 Ω BTL.
(3) 2 × 4 Ω SE.
(4) 2 × 8 Ω SE.
Fig.24 Output power as a function of supply
voltage.
2001 Dec 11
handboo²k,⁰h⁰alfpage
Po
(W)
160
MLD612
(2)
120
(1)
(3)
80
(4)
40
0
10
15
20
25
30
35
VP (V)
THD + N = 10%; f_i = 1 kHz:
(1) 1 × 4 Ω BTL.
(2) 1 × 8 Ω BTL.
(3) 2 × 4 Ω SE.
(4) 2 × 8 Ω SE.
Fig.25 Output power as a function of supply
voltage.
27