TDA8551_T_15 Datasheet, PDF (11/18 Pages) NXP Semiconductors – 1 W BTL audio amplifier with digital volume control

NXP Semiconductors
1 W BTL audio amplifier with digital volume
control
Product specification
TDA8551
handbook,²h⁰alfpage
Gv
(dB)
0
MGM553
−20
−40
−60
−80
0
20
40
60 _nvol 80
Fig.12 Volume gain as a function of volume steps.
3
handbook, halfpage
Po
(W)
2
1
MGM558
(1)
(2)
0
0
2
4 _{VP (V)} 6
THD = 10 %.
(1) R_L = 4 Ω.
(2) R_L = 8 Ω.
P_o(max) is limited by P_tot and a
maximum available repetitive
peak output current of 1 A.
Fig.13 Output power as a function of supply
voltage.
handbook¹, ^.h⁵alfpage
P
(W)
1
MGM556
(1)
handbook¹, ^.h⁵alfpage
P
(1)
(W)
1
MGM557
(2)
0.5
(3)
0
0
2
4 _{VP (V)} 6
(1) R_L = 4 Ω.
(2) R_L = 8 Ω.
(3) R_L = 16 Ω.
Fig.14 Power dissipation as a function of supply
voltage.
0.5
0
0
(2)
(3)
(4)
(5)
0.4
0.8
1.2
1.6
2.0
Po (W)
(1) V_P = 5 V; R_L = 4 Ω.
(2) V_P = 5 V; R_L = 8 Ω.
(3) V_P = 3.3 V; R_L = 4 Ω.
(4) V_P = 5 V; R_L = 16 Ω.
(5) V_P = 3.3 V; R_L = 8 Ω.
Fig.15 Power dissipation as a function of output
power.
1998 Feb 23
11