SLES263 – NOVEMBER 2010
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AUDIO CHARACTERISTICS (BTL)
Audio performance is recorded as a chipset consisting of a TAS5518 PWM processor (modulation index limited to 97.7%)
and a TAS5631B power stage. PCB and system configurations are in accordance with recommended guidelines. Audio
frequency = 1 kHz, PVDD_X = 50 V, GVDD_X = 12 V, R
L
= 4
Ω,
f
S
= 384 kHz, R
OC
= 22 kΩ, T
C
= 75°C;
output filter: L
DEM
= 7
mH,
C
DEM
= 680 nF, MODE = 000, unless otherwise noted.
PARAMETER
TEST CONDITIONS
R
L
= 4
Ω,
10% THD+N, clipped input signal
R
L
= 6
Ω,
10% THD+N, clipped input signal
P
O
Power output per channel
R
L
= 8
Ω,
10% THD+N, clipped input signal
R
L
= 4
Ω,
1% THD+N, unclipped input signal
R
L
= 6
Ω,
1% THD+N, unclipped input signal
R
L
= 8
Ω,
1% THD+N, unclipped input signal
THD+N
V
n
|V
OS
|
SNR
DNR
P
idle
(1)
(2)
Total harmonic distortion + noise
Output integrated noise
Output offset voltage
Signal-to-noise ratio
(1)
Dynamic range
Power dissipation due to idle losses
(I
PVDD_X
)
1W
A-weighted, TAS5518 modulator
No signal
A-weighted, TAS5518 modulator
A-weighted, input level –60 dBFS using TAS5518
modulator
P
O
= 0, four channels switching
(2)
MIN
TYP MAX UNIT
300
210
160
240
160
125
0.03%
180
20
103
103
3.9
50
mV
mV
dB
dB
W
W
SNR is calculated relative to 1% THD-N output level.
Actual system idle losses also are affected by core losses of output inductors.
AUDIO SPECIFICATION (Single-Ended Output)
Audio performance is recorded as a chipset consisting of a TAS5086 PWM processor (modulation index limited to 97.7%)
and a TAS5631B power stage. PCB and system configurations are in accordance with recommended guidelines. Audio
frequency = 1 kHz, PVDD_X = 50 V, GVDD_X = 12 V, R
L
= 2
Ω,
f
S
= 384 kHz, R
OC
= 22 kΩ, T
C
= 75°C;
output filter: L
DEM
= 7
mH,
C
DEM
= 470 nF, MODE = 100, unless otherwise noted.
PARAMETER
TEST CONDITIONS
R
L
= 2
Ω,
10%, THD+N, clipped input signal
R
L
= 3
Ω,
10%, THD+N, clipped input signal
P
O
Power output per channel
R
L
= 4
Ω,
10%, THD+N, clipped input signal
R
L
= 2
Ω,
1% THD+N, unclipped input signal
R
L
= 3
Ω,
1% THD+N, unclipped input signal
R
L
= 4
Ω,
1% THD+N, unclipped input signal
THD+N
V
n
SNR
DNR
P
idle
(1)
(2)
Total harmonic distortion + noise
Output integrated noise
Signal-to-noise ratio
Dynamic range
Power dissipation due to idle losses (I
PVDD_X
)
(1)
MIN
TYP MAX
145
100
75
110
75
55
0.04%
140
100
100
3
UNIT
W
1W
A-weighted, TAS5086 modulator
A-weighted, TAS5086 modulator
A-weighted, input level –60 dBFS using TAS5086
modulator
P
O
= 0, 4 channels switching
(2)
mV
dB
dB
W
SNR is calculated relative to 1% THD-N output level.
Actual system idle losses are affected by core losses of output inductors.
8
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