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參數(shù)資料
| 型號(hào)： | TPA3125D2N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 音頻／視頻放大 |
| 英文描述： | 36 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP20 |
| 封裝： | ROHS COMPLIANT, PLASTIC, DIP-20 |
| 文件頁(yè)數(shù)： | 21/26頁(yè) |
| 文件大?。?/td> | 467K |
| 代理商： | TPA3125D2N |
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DC CHARACTERISTICS
AC CHARACTERISTICS
SLOS611 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
TA = 25°C, VCC = 24 V, RL = 8 (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 33)
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
210
450
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
–80
dB
TA = 25°C, VCC = 24 V, RL = 8 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC = 24, Vripple = 0.2 VPP, Gain = 20 dB,
kSVR
Supply ripple rejection
–52
dB
freq = 1 kHz
Output power at 1% THD+N
VCC = 24 V, f = 1 kHz; single-ended output
8
Output power at 10% THD+N
VCC = 24 V, f = 1 kHz; single-ended output
10
Output power at 1% THD+N
VCC = 12 V, f = 1 kHz; bridge-tied output
7
Output power at 10% THD+N
VCC = 12 V, f = 1 kHz; bridge-tied output
9
PO
W
VCC = 24 V, f = 1 kHz; bridge-tied output
Output power at 1% THD+N
(output thermally limited to 20W unless
30
heatsink is used)
VCC = 24 V, f = 1 kHz; bridge-tied output
Output power at 10% THD+N
(output thermally limited to 20W unless
36
heatsink is used)
Total harmonic distortion +
f = 1 kHz, PO = 5 W; single-ended output
0.04%
THD+N
noise
Total harmonic distortion +
THD+N
f = 1 kHz, PO = 10 W; bridge-tied output
0.04%
noise
125
V RMS
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
Mute delay
Time from mute input switches high until
30
s
outputs muted
Unmute delay
Time from mute input switches low until
120
ms
outputs unmuted
Start-up time
Bypass capacitor on pin 6 = 1
F
500
ms
4
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPA3125D2
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