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| TPA3121D2_15 Datasheet, PDF (4/32 Pages) Texas Instruments – 15-W STEREO CLASS-D AUDIO POWER AMPLIFIER | |||
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TPA3121D2
SLOS537B â MAY 2008 â REVISED JANUARY 2014
DC CHARACTERISTICS
TA = 25°C, VCC = 24 V, RL =8⦠(unless otherwise noted)
PARAMETER
TEST CONDITIONS
| VOS |
Class-D output offset voltage
(measured differentially in BTL VI = 0 V, AV = 36 dB
mode as shown in Figure 36)
V(BYPASS)
ICC(q)
ICC(q)
Bypass output voltage
Quiescent supply current
Quiescent supply current in
mute mode
No load
SD = 2 V, MUTE = 0 V, no load
MUTE = 0.8 V, no load
ICC(q)
Quiescent supply current in
shutdown mode
SD = 0.8 V, no load
rDS(on)
Drain-source on-state
resistance
G
Gain
GAIN1 = 0.8 V
GAIN = 2 V
GAIN0 = 0.8 V
GAIN0 = 2 V
GAIN0 = 0.8 V
GAIN0 = 2 V
Mute attenuation
VI = 1 Vrms
AC CHARACTERISTICS
TA = 25°C, VCC = 24 V, RL = 8⦠(unless otherwise noted)
PARAMETER
TEST CONDITIONS
ksvr
Supply ripple rejection
VCC = 24, Vripple = 200 mVPP
Gain = 20 dB
100 Hz
1 kHz
PO
THD+N
Output power at 1% THD+N
Output power at 10% THD+N
Total harmonic distortion +
noise
VCC = 24 V, f = 1 kHz
VCC = 24 V, f = 1 kHz
f = 1 kHz, PO = 5 W
Vn
Output integrated noise floor
20 Hz to 22 kHz, A-weighted filter,
Gain = 20 dB
SNR
fOSC
Ît mute
Crosstalk
Signal-to-noise ratio
Thermal trip point
Thermal hysteresis
Oscillator frequency
Mute delay
Ît unmute Unmute delay
PO = 1 W, f = 1 kHz; gain = 20 dB
Max output at THD+N < 1%, f = 1 kHz,
gain = 20 dB
Time from mute input switches high until
outputs muted
Time from mute input switches low until
outputs unmuted
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MIN
TYP
MAX UNIT
7.5
50 mV
AVCC/8
16
16
V
30 mA
mA
0.39
1 mA
210
450
mâ¦
18
20
22
24
26
28
dB
30
32
34
34
36
38
-75
dB
MIN
TYP
â48
â52
8
10
0.04%
125
â78
â70
92
150
30
250
300
120
120
MAX
UNIT
dB
W
μV
dBV
dB
dB
°C
°C
350 kHz
msec
msec
4
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