TDA8551_T_15 Datasheet, PDF (10/18 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
10
handbook, halfpage
THD
(%)
1
(1)
10^−1
(2)
(3)
MGM550
10^−2
10
10²
10³
10⁴ _{f (Hz)} 10⁵
P_o = 0.1 W.
(1) G_v = 0 dB.
(2) G_v = 7 dB.
(3) G_v = 20 dB.
Fig.8 Total harmonic distortion as a function of
frequency at different gains.
handbook, h⁰alfpage
SVRR
(dB)
(1)
−20
(2)
(3)
MGM549
−40
(4)
(5)
(6)
−60
10
10²
10³
10⁴ _{f (Hz)} 10⁵
V_ripple = 100 mV.
R_source = 0 Ω.
(1) C2 = 10 μF; G_v = 20 dB.
(2) C2 = 10 μF; G_v = 7 dB.
(3) C2 = 100 μF; G_v = 20 dB.
(4) C2 = 10 μF; G_v = −10 dB.
(5) C2 = 100 μF; G_v = 7 dB.
(6) C2 = 100 μF; G_v = −10 dB.
Fig.9 Supply voltage ripple rejection as a function
of frequency.
handbo_Vo_ik², h^.4alfpage
(V)
2.0
1.6
1.2
0.8
0.4
0
−60
−40
−20
MGM559
0
20
Gv (dB)
1
handboo_Vk_o, halfpage
(V)
10^−1
10^−2
10^−3
10^−4
10^−5
0
1
(1)
2
3
MGM555
(2)
4
5
VMODE
THD = 1 %.
Fig.10 Input voltage as a function of voltage gain.
(1) V_P = 3 V.
(2) V_P = 5 V.
Fig.11 Output voltage as a function of mode select
input voltage at different supply voltages.
1998 Feb 23
10