Datasheet

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RECOMMENDED OPERATING CONDITIONS
AUDIO SPECIFICATIONS (BTL)
AUDIO SPECIFICATIONS (Single-Ended Output)
TAS5142
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
R
L
(BTL) 3 4
Output filter: L = 10 µ H, C = 470 nF.
R
L
(SE) Load impedance Output AD modulation, switching 2 3 Ω
frequency > 350 kHz
R
L
(PBTL) 1.5 2
L
Output
(BTL) 5 10
Minimum output inductance under
L
Output
(SE) Output-filter inductance 5 10 µ H
short-circuit condition
L
Output
(PBTL) 5 10
F
PWM
PWM frame rate 192 384 432 kHz
T
J
Junction temperature 0 125 °C
PVDD_X = 32 V, GVDD = VDD = 12 V, BTL mode, R
L
= 4 Ω , audio frequency = 1 kHz, AES17 filter, F
PWM
= 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
R
L
= 4 Ω , 10% THD, clipped input
100
signal
R
L
= 6 Ω , 10% THD, clipped input
80
signal
R
L
= 8 Ω , 10% THD, clipped input
65 W
signal
P
O
Power output per channel, DKD package
R
L
= 4 Ω , 0 dBFS, unclipped input
80
signal
R
L
= 6 Ω , 0 dBFS, unclipped input
60
signal
R
L
= 8 Ω , 0 dBFS, unclipped input
50
signal
0 dBFS 0.3%
THD+N Total harmonic distortion + noise
1 W 0.1%
V
n
Output integrated noise A-weighted 140 µ 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
P
idle
Power dissipation due to idle losses (IPVDD_X) P
O
= 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 Ω , audio frequency = 1 kHz, AES17 filter, F
PWM
= 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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