SA58672 查看數據表（PDF） - NXP Semiconductors.
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SA58672 Datasheet PDF : 27 Pages
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NXP Semiconductors
SA58672
3.0 W mono class-D audio amplifier
9. Dynamic characteristics
Table 5. Dynamic characteristics
Tamb = 25 °C; RL = 8 Ω; unless otherwise specified[1].
Symbol Parameter
Conditions
Min
Typ
Max
Unit
Po
output power
f = 1 kHz; THD+N = 10 %
RL = 8 Ω; VDD = 5.0 V
RL = 8 Ω; VDD = 3.6 V
RL = 4 Ω; VDD = 5.0 V
RL = 4 Ω; VDD = 3.6 V
f = 1 kHz; THD+N = 1 %
-
1.7
-
W
-
800
-
mW
-
3.0
-
W
-
1.6
-
W
RL = 8 Ω; VDD = 5.0 V
-
1.6
-
W
RL = 8 Ω; VDD = 3.6 V
-
0.75 -
W
RL = 4 Ω; VDD = 5.0 V
-
2.4
-
W
RL = 4 Ω; VDD = 3.6 V
-
1.2
-
W
THD+N
total harmonic
distortion-plus-noise
VDD = 5 V; Gv = 6 dB; RL = 8 Ω;
-
0.08 -
%
f = 1 kHz; Po = 1 W
VDD = 3 V; RL = 3 Ω; Po = 1 W
-
3
-
%
ηpo
output power efficiency
Po(RMS) = 2.0 W; RL = 4 Ω
-
85
-
%
Po(RMS) = 1.3 W; RL = 8 Ω
-
90
-
%
SVRR
supply voltage ripple rejection Gv = 6 dB; f = 217 Hz
VDD = 5.0 V
-
−77
-
dB
VDD = 3.6 V
-
−73
-
dB
CMRR
common mode rejection ratio VDD = 5 V; Gv = 6 dB; f = 217 Hz
-
−69
-
dB
td(sd-startup) delay time from shutdown to
start-up
VDD = 3.6 V
-
7.0
-
ms
Vn(o)
output noise voltage
VDD = 3.6 V; f = 20 Hz to 20 kHz;
inputs are AC grounded
no weighting
-
35
-
µV
A weighting
-
27
-
µV
[1] VDD is the supply voltage on pins PVDD and pin AVDD.
SA58672_4
Product data sheet
Rev. 04 — 8 June 2009
© NXP B.V. 2009. All rights reserved.
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