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TDA8547 Datasheet, PDF (14/24 Pages) NXP Semiconductors – 2 x 1 W BTL audio amplifier with output channel switching
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Philips Semiconductors
2 × 1 W BTL audio amplifier with output
channel switching
Preliminary specification
TDA8547
10
handbook, halfpage
THD
(%)
1
(1)
(2)
10−1
(3)
MGD899
10−2
10−2
10−1
1
10
Po (W)
f = 1 kHz; Gv = 20 dB.
(1) VCC = 7.5 V; RL = 4 Ω.
(2) VCC = 9 V; RL = 8 Ω.
(3) VCC = 12 V; RL = 16 Ω.
Fig.17 THD as a function of Po.
10
handbook, halfpage
THD
(%)
1
MGD900
10−1
10−2
10
(1)
(2)
(3)
102
103
104
105
f (Hz)
Po = 0.5 W; Gv = 20 dB.
(1) VCC = 7.5 V; RL = 4 Ω.
(2) VCC = 9 V; RL = 8 Ω.
(3) VCC = 12 V; RL = 16 Ω.
Fig.18 THD as a function of frequency.
handbook−,2h0alfpage
αcs
(dB)
−40
MGL244
−60
(1)
(2)
−80
(3)
(4)
−100
10
102
103
Vo = 1 V; Gv = 20 dB.
(1) VCC = 7.5 V; RL = 4 Ω.
(2) VCC = 9 V; RL = 8 Ω.
(3) VCC = 12 V; RL = 16 Ω.
(4) VCC = 5 V; RL = 32 Ω.
104
105
f (Hz)
Fig.19 Channel separation as a function of
frequency.
1997 Oct 07
handbook−,2h0alfpage
SVRR
(dB)
−40
−60
−80
10
102
MGD902
(1)
(2)
(3)
103
104
105
f (Hz)
VCC = 7.5 V; RL = 4 Ω; RS = 0 Ω; Vr = 100 mV.
(1) Gv = 24 dB.
(2) Gv = 20 dB.
(3) Gv = 0 dB.
Fig.20 SVRR as a function of frequency.
14
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