TDA8542 Datasheet, PDF (13/20 Pages) NXP Semiconductors – 2 x 1 W BTL audio amplifier

Philips Semiconductors
2 × 1 W BTL audio amplifier
handbook^−,²h⁰alfpage
α_cs
(dB)
−40
−60
−80
MGD901
(1)
(2)
(3)
(4)
(5)
−100
10
10²
10³
V_o = 1 V, G_v = 20 dB.
(1) V_CC = 5 V, R_L = 32 Ω, to buffer.
(2) V_CC = 7.5 V, R_L = 4 Ω.
(3) V_CC = 9 V, R_L = 8 Ω.
(4) V_CC = 12 V, R_L = 16 Ω.
(5) V_CC = 5 V, R_L = 32 Ω.
10⁴
10⁵
f (Hz)
Fig.17 Channel separation as a function of
frequency.
Product specification
TDA8542
handbook^−,²h⁰alfpage
SVRR
(dB)
−40
−60
MGD902
(1)
(2)
(3)
−80
10
10²
10³
10⁴
10⁵
f (Hz)
V_CC = 7.5 V, R_L = 4 Ω,R_s = 0 Ω, V_r = 100 mV.
(1) G_v = 24 dB.
(2) G_v = 20 dB.
(3) G_v = 0 dB.
Fig.18 SVRR as a function of frequency.
handbook, h²alfpage
Po
(W)
1.6
1.2
0.8
MGD903
(1)
(2)
(3)
0.4
0
0
4
8
12
16
VCC (V)
THD = 10%.
(1) R_L = 4 Ω.
(2) R_L = 8 Ω.
(3) R_L = 16 Ω.
Fig.19 P_o as a function of V_CC.
1998 Apr 01
handbook, h³alfpage
P
(W)
2
MGD904
(1) (2)
(3)
1
0
0
4
(1) R_L = 4 Ω.
(2) R_L = 8 Ω.
(3) R_L = 16 Ω.
8
12 _{VCC (V)} 16
Fig.20 Worst case power dissipation as a function
of V_CC.
13