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TPA3121D2 Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TPA3121D2
Description  15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
Download  32 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3121D2 Fiches technique(HTML) 4 Page - Texas Instruments

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TPA3121D2
SLOS537B – MAY 2008 – REVISED JANUARY 2014
www.ti.com
DC CHARACTERISTICS
TA = 25°C, VCC = 24 V, RL =8Ω (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Class-D output offset voltage
| VOS |
(measured differentially in BTL
VI = 0 V, AV = 36 dB
7.5
50
mV
mode as shown in Figure 36)
V(BYPASS)
Bypass output voltage
No load
AVCC/8
V
ICC(q)
Quiescent supply current
SD = 2 V, MUTE = 0 V, no load
16
30
mA
ICC(q)
Quiescent supply current in
MUTE = 0.8 V, no load
16
mA
mute mode
ICC(q)
Quiescent supply current in
SD = 0.8 V, no load
0.39
1
mA
shutdown mode
rDS(on)
Drain-source on-state
450
210
m
resistance
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
VI = 1 Vrms
-75
dB
AC CHARACTERISTICS
TA = 25°C, VCC = 24 V, RL = 8Ω (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC = 24, Vripple = 200 mVPP
100 Hz
–48
ksvr
Supply ripple rejection
dB
Gain = 20 dB
1 kHz
–52
Output power at 1% THD+N
VCC = 24 V, f = 1 kHz
8
PO
W
Output power at 10% THD+N
VCC = 24 V, f = 1 kHz
10
Total harmonic distortion +
f = 1 kHz, PO = 5 W
0.04%
THD+N
noise
125
μV
20 Hz to 22 kHz, A-weighted filter,
Vn
Output integrated noise floor
Gain = 20 dB
–78
dBV
Crosstalk
PO = 1 W, f = 1 kHz; gain = 20 dB
–70
dB
Max output at THD+N < 1%, f = 1 kHz,
SNR
Signal-to-noise ratio
92
dB
gain = 20 dB
Thermal trip point
150
°C
Thermal hysteresis
30
°C
fOSC
Oscillator frequency
250
300
350
kHz
Δt mute
Mute delay
Time from mute input switches high until
120
msec
outputs muted
Δt unmute
Unmute delay
Time from mute input switches low until
120
msec
outputs unmuted
4
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