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RECOMMENDED OPERATING CONDITIONS
AUDIO SPECIFICATIONS (BTL)
AUDIO SPECIFICATIONS (Single-Ended Output)
SLES126B – DECEMBER 2004 – REVISED MAY 2005
MIN
TYP
MAX
UNIT
PVDD_X
Half-bridge supply
DC supply voltage
0
32
34
V
Supply for logic regulators and gate-drive
GVDD_X
DC supply voltage
10.8
12
13.2
V
circuitry
VDD
Digital regulator input
DC supply voltage
10.8
12
13.2
V
RL (BTL)
3
4
Output filter: L = 10
H, C = 470 nF.
RL (SE)
Load impedance
Output AD modulation, switching
2
3
frequency > 350 kHz
RL (PBTL)
1.5
2
LOutput (BTL)
5
10
Minimum output inductance under
LOutput (SE)
Output-filter inductance
5
10
H
short-circuit condition
LOutput (PBTL)
5
10
FPWM
PWM frame rate
192
384
432
kHz
TJ
Junction temperature
0
125
°C
PVDD_X = 32 V, GVDD = VDD = 12 V, BTL mode, R
L = 4 , audio frequency = 1 kHz, AES17 filter, FPWM = 384 kHz, case
temperature = 75°C, unless otherwise noted. Audio performance is recorded as a chipset, using TAS5508 PWM processor
with an effective modulation index limit of 96.1%. All performance is in accordance with recommended operating conditions
unless otherwise specified.
TAS5142
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
RL = 4 , 10% THD, clipped input
100
signal
RL = 6 , 10% THD, clipped input
80
signal
RL = 8 , 10% THD, clipped input
65
W
signal
PO
Power output per channel, DKD package
RL = 4 , 0 dBFS, unclipped input
80
signal
RL = 6 , 0 dBFS, unclipped input
60
signal
RL = 8 , 0 dBFS, unclipped input
50
signal
0 dBFS
0.3%
THD+N
Total harmonic distortion + noise
1 W
0.1%
Vn
Output integrated noise
A-weighted
140
V
SNR
Signal-to-noise ratio (1)
A-weighted
102
dB
A-weighted, input level = –60 dBFS
102
using TAS5508 modulator
DNR
Dynamic range
dB
A-weighted, input level = –60 dBFS
110
using TAS5518 modulator
Pidle
Power dissipation due to idle losses (IPVDD_X)
PO = 0 W, 4 channels switching(2)
2
W
(1)
SNR is calculated relative to 0-dBFS input level.
(2)
Actual system idle losses are affected by core losses of output inductors.
PVDD_X = 32 V, GVDD = VDD = 12 V, SE mode, R
L = 4 , audio frequency = 1 kHz, AES17 filter, FPWM = 384 kHz, case
temperature = 75°C, unless otherwise noted. Audio performance is recorded as a chipset, using TAS5086 PWM processor
with an effective modulation index limit of 96.1%. All performance is in accordance with recommended operating conditions
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