Philips TDA8950 - Curves Measured in Reference Design

TDA8950_2 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 02 — 11 June 2009 23 of 39
NXP Semiconductors
TDA8950
2 × 150 W class-D power amplifier
13.8 Curves measured in reference design
V
P
= ±35 V, f
osc
= 345 kHz, 2 × 4 Ω SE configuration.
(1) f
i
= 6 kHz.
(2) f
i
= 1 kHz.
(3) f
i
= 100 Hz.
Fig 11. THD + N as a function of output power, SE configuration with 2 × 4 Ω load
V
P
= ±35 V, f
osc
= 345 kHz, 2 × 6 Ω SE configuration.
(1) f
i
= 6 kHz.
(2) f
i
= 1 kHz.
(3) f
i
= 100 Hz.
Fig 12. THD + N as a function of output power, SE configuration with 2 × 6 Ω load
010aaa553
10
−1
10
−2
1
10
THD
(%)
10
−3
P
o
(W)
10
−2
10
3
10
2
10
−1
110
(1)
(2)
(3)
010aaa554
10
−1
10
−2
1
10
THD
(%)
10
−3
P
o
(W)
10
−2
10
3
10
2
10
−1
110
(2)
(1)
(3)