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TDA8552T Datasheet, PDF (17/28 Pages) NXP Semiconductors – 2 x 1.4 W BTL audio amplifiers with digital volume control and headphone sensing
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Philips Semiconductors
2 × 1.4 W BTL audio amplifiers with digital
volume control and headphone sensing
Preliminary specification
TDA8552T; TDA8552TS
handbook,2h0alfpage
IDD
(mA)
15
MGR005
10
5
0
2
3
4
5
6
VDD (V)
RL = ∞.
Fig.6 IDD as a function of VDD.
handbook,4h0alfpage
G
(dB)
20
MGR006
0
(1)
−20
(2)
−40
−60
0
20
40
60
80
volume steps
VDD = 5 V; RL = 8 Ω.
(1) Gv = 30 dB (max.).
(2) Gv = 20 dB (max.).
Fig.7 Gain as a function of volume steps.
10
handbook, halfpage
THD
(%)
1
(1)
(2)
10−1
(3)
MGR007
10
handbook, halfpage
THD
(%)
1
10−1
MGR008
(1)
(2)
(3)
(4)
10−2
10−2
10−1
1 Po (W) 10
VDD = 5 V; RL = 8 Ω; f = 1 kHz; Gv = 20 dB (max.).
(1) Gv = 0 dB.
(2) Gv = 7 dB.
(3) Gv = 20 dB.
Fig.8 THD as a function of Po.
1998 Jun 02
10−2
10−2
10−1
1 Po (W) 10
VDD = 5 V; RL = 8 Ω; f = 1 kHz; Gv = 30 dB (max.).
(1) Gv = 0 dB.
(2) Gv = 7 dB.
(3) Gv = 20 dB.
(4) Gv = 30 dB.
Fig.9 THD as a function of Po.
17
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