TFA9881_1104 PHILIPS [NXP Semiconductors], TFA9881_1104 Datasheet - Page 16

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

NXP Semiconductors
Table 17.
All parameters are guaranteed for V
T
[1]
[2]
TFA9881
Product data sheet
Symbol
Output power
P
Performance
η
THD+N
V
S/N
PSRR
V
Power-up, power-down and propagation times
t
t
t
d(on)
d(off)
PD
amb
po
o(RMS)
n(o)
oM
R
Inversely proportional to f
= 25
L
= load resistance; L
°
C; default settings, unless otherwise specified.
AC characteristics
signal-to-noise ratio
power supply rejection ratio
Parameter
RMS output power
output power efficiency
total harmonic distortion-plus-noise P
output noise voltage
peak output voltage
turn-on delay time
turn-off delay time
propagation delay
12.2 AC characteristics
L
= load inductance.
clk
.
TEST
= V
All information provided in this document is subject to legal disclaimers.
DDP
= 3.6 V; V
Conditions
THD + N = 1 %
THD + N = 1 %; R
THD + N = 10 %
THD + N = 10 %; R
P
A-weighted
V
V
At −6 dBFS (peak) digital input
o(RMS)
o(RMS)
DDP
ripple
V
V
V
V
V
V
V
V
gain = −3 dB; V
R
gain = 0 dB; V
R
gain = +3 dB; V
R
Rev. 2 — 1 April 2011
DDP
DDP
DDP
DDP
DDP
DDP
DDP
DDP
L
L
L
= 4 Ω; L
= 4 Ω; L
= 8 Ω; L
= 5 V; V
= 200 mV; f
= 3.6 V, f
= 5.0 V, f
= 3.6 V, f
= 5.0 V, f
= 3.6 V, f
= 5.0 V, f
= 3.6 V, f
= 5.0 V, f
= 1.4 W
= 100 mW
DDD
= 1.8 V; R
L
L
L
o
= 20 μH
= 20 μH
= 44 μH
= 3.4 V (RMS); A-weighted
DDP
i
i
i
i
i
i
i
i
DDP
= 100 Hz
= 100 Hz
= 100 Hz
= 100 Hz
= 100 Hz
= 100 Hz
= 100 Hz
= 100 Hz
ripple
DDP
L
L
= 8 Ω; L
= 3.6 V
= 8 Ω; L
= 3.6 V
= 5.0 V
= 217 Hz
L
= 4
3.4 W PDM input class-D audio amplifier
L
Ω
L
= 44 μH
[1]
= 44 μH
; L
L
= 20
μ
H
[2]
[2]
[2]
[1]
; f
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3.1
-
-
-
-
i
= 1 kHz; f
Typ
1.4
2.7
0.75
1.45
1.75
3.4
0.95
1.85
90
0.02
24
103
85
2.3
3.3
4.7
-
-
-
TFA9881
© NXP B.V. 2011. All rights reserved.
clk
= 6.144 MHz;
Max
-
-
-
-
-
-
-
-
-
0.1
-
-
-
-
3.5
-
2
5
55
16 of 32
dB
Unit
W
W
W
W
W
W
W
W
%
%
μV
dB
V
V
V
ms
μs
μs