TDA8922C Datasheet, PDF (27/40 Pages) NXP Semiconductors – 2 X 75 W class-D power amplifier

NXP Semiconductors
TDA8922C
2 × 75 W class-D power amplifier
30
P_D
(W
20
10
010aaa573
(1)
(2)
(3)
0
10^−2
10^−1
1
10¹
10²
10³
P_o (W)
f_i = 1 kHz; f_osc = 350 kHz (external oscillator).
(1) 2 × 6 Ω SE configuration; V_DD = 32 V; V_SS = −32 V.
(2) 2 × 8 Ω SE configuration; V_DD = 32 V; V_SS = −32 V.
(3) 1 × 8 Ω BTL configuration; V_DD = 25 V; V_SS = −25 V.
Fig 19. Power dissipation as a function of output power per channel, SE configuration
100
η
(%)
80
(1)
(2)
010aaa574
(3)
60
40
20
0
0
20
40
60
80
100
120
140
160
P_o (W)
f_i = 1 kHz, f_osc = 350 kHz (external oscillator).
(1) 2 × 8 Ω SE configuration; V_DD = 32 V; V_SS = −32 V.
(2) 2 × 6 Ω SE configuration; V_DD = 32 V; V_SS = −32 V.
(3) 1 × 8 Ω BTL configuration; V_DD = 25 V; V_SS = −25 V.
Fig 20. Efficiency as a function of output power per channel, SE configuration
TDA8922C_1
Product data sheet
Rev. 01 — 7 September 2009
© NXP B.V. 2009. All rights reserved.
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