SLOS559 – JUNE 2008
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AC Characteristics (BTL)
PVDD_X = 18 V, BTL mode, R
L
= 8
Ω,
R
OC
= 22 kΩ, C
BST
= 33-nF, audio frequency = 1 kHz, AES17 filter, F
PWM
= 384 kHz,
T
A
= 25°C (unless otherwise noted). All performance is I naccordance with recommended operating conditions, unless
otherwise specified.
PARAMETER
TEST CONDITIONS
PVDD = 18 V, 10% THD, 1-kHz input
signal
P
O
Power output per channel
PVDD = 18 V, 7% THD, 1-kHz input signal
PVDD = 12 V, 10% THD, 1-kHz input
signal
PVDD = 12 V, 7% THD, 1-kHz input signal
PVDD = 18 V, P
O
= 10 W (half-power)
THD+N
V
n
Total harmonic distortion + noise
Output integrated noise
Crosstalk
SNR
P
D
(1)
(2)
Signal-to-noise ratio
(1)
MIN
TYP
20.0
18.6
9
8.3
0.1%
0.08%
0.05%
50
–73
101
0.6
MAX
UNIT
W
PVDD = 12 V, P
O
= 4.5 W (half-power)
1W
A-weighted
P
O
= 1 W, f = 1 kHz
A-weighted, f = 1 kHz, maximum power at
THD < 1%
P
O
= 0 W, 4 channels switching
(2)
µV
dB
dB
W
Power dissipation due to idle losses (I
PVDD_X
)
SNR is calculated relative to 0-dBFS input level.
Actual system idle losses are affected by core losses of output inductors.
10
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