Datasheet

TPA3123D2
SLOS541C –JULY 2007–REVISED AUGUST 2010 www.ti.com
DC CHARACTERISTICS
T
A
= 25°C, V
CC
= 24 V, R
L
= 4 Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Class-D output offset voltage
| V
OS
| (measured differentially in BTL mode as shown in V
I
= 0 V, A
V
= 36 dB 7.5 50 mV
Figure 30)
V
(BYPASS)
AVCC/
Bypass output voltage No load V
8
I
CC(q)
SD = 2 V, MUTE = 0 V, No
Quiescent supply current 23 37 mA
load
I
CC(q)
Quiescent supply current in mute mode MUTE = 0.8 V, No load 23 mA
I
CC(q)
Quiescent supply current in shutdown mode SD = 0.8 V , No load 0.39 1 mA
r
DS(on)
Drain-source on-state resistance 200 mΩ
GAIN0 = 0.8 V 18 20 22
GAIN1 = 0.8 V
GAIN0 = 2 V 24 26 28
G Gain dB
GAIN0 = 0.8 V 30 32 34
GAIN = 2 V
GAIN0 = 2 V 34 36 38
Mute Attenuation V
I
= 1 Vrms –82 dB
AC CHARACTERISTICS
T
A
= 25°C, V
CC
= 24 V, R
L
= 4Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
CC
= 24, V
ripple
= 200 mV
PP
100 Hz –48
ksvr Supply ripple rejection dB
Gain = 20 dB
1 kHz –52
V
CC
= 24 V, R
L
= 4 Ω, f = 1 kHz 16
Output power at 1% THD+N
V
CC
= 24 V, R
L
= 8 Ω, f = 1 kHz 8
P
O
W
V
CC
= 24 V, R
L
= 4 Ω, f = 1 kHz 20
Output power at 10% THD+N
V
CC
= 24 V, R
L
= 8 Ω, f = 1 kHz 10
R
L
= 4 Ω, f = 1 kHz, P
O
= 10 W 0.08%
THD+N Total harmonic distortion + noise
R
L
= 8 Ω, f = 1 kHz, P
O
= 5 W 0.08%
85 mV
V
n
Output integrated noise floor 20 Hz to 22 kHz, A-weighted filter, Gain = 20 dB
–80 dBV
Crosstalk P
O
= 1 W, f = 1 kHz; Gain = 20 dB –60 dB
Max output at THD+N < 1%, f = 1 kHz,
SNR Signal-to-noise ratio 99 dB
Gain = 20 dB
Thermal trip point 150 °C
Thermal hysteresis 30 °C
f
OSC
Oscillator frequency 230 250 270 kHz
time from mute input switches high until outputs
mute delay 120 msec
muted
Δt
time from mute input switches low until outputs
unmute delay 120 msec
unmuted
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