TFA9881_1104 PHILIPS [NXP Semiconductors], TFA9881_1104 Datasheet - Page 23

• Manufacturer Part Number: TFA9881_1104
• Description: 3.4 W PDM input class-D audio amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
TFA9881
Product data sheet
Fig 17. Output power as a function of supply voltage
(W)
P
(1) THD+N = 10 %, R
(2) THD+N = 1 %, R
(3) THD+N = 10 %, R
(4) THD+N = 1 %, R
a. f
o
5
4
3
2
1
0
2
i
= 100 Hz, clip control off
3
L
L
Fig 16. S/N ratio as a function of output power
L
L
= 4 Ω, L
= 8 Ω, L
= 4 Ω, L
= 8 Ω, L
4
(1) A-weighted.
(2) 20 kHz brickwall filter.
L
L
V
L
L
= 20 μH.
= 44 μH.
DDP
= 20 μH.
= 44 μH.
5
= 5 V, R
All information provided in this document is subject to legal disclaimers.
V
001aam649
DDP
(1)
(2)
(3)
(4)
S/N ratio
(V)
L
(dB)
= 4 Ω, L
110
6
90
70
50
30
10
Rev. 2 — 1 April 2011
10
−3
L
= 20 μH, reference signal: 3.4 V (RMS).
10
−2
(1)
(2)
(W)
P
(1) THD+N = 10 %, R
(2) THD+N = 1 %, R
(3) THD+N = 10 %, R
(4) THD+N = 1 %, R
b. f
o
4
3
2
1
0
2
10
i
= 100 Hz, clip control on
−1
3.4 W PDM input class-D audio amplifier
3
1
001aam632
P
o
L
L
L
L
(W)
= 4 Ω, L
= 8 Ω, L
= 4 Ω, L
= 8 Ω, L
4
10
L
L
L
L
= 20 μH.
= 44 μH.
= 20 μH.
= 44 μH.
5
TFA9881
© NXP B.V. 2011. All rights reserved.
V
001aam650
DDP
(1)
(2)
(3)
(4)
(V)
6
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