參數(shù)資料
型號(hào)： TPA2012D2YZH
廠商： Texas Instruments, Inc.
英文描述： 2.1 W/CH STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
中文描述： 2.1瓦/甲烷立體聲無(wú)濾波器D類音頻功率放大器
文件頁(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 722K
代理商： TPA2012D2YZH
www.ti.com
ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C (unless otherwise noted)
OPERATING CHARACTERISTICS
T
A
= 25
°
C, R
L
= 8
(unless otherwise noted)
TPA2012D2
SLOS438C–DECEMBER 2004–REVISED MARCH 2007
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Inputs ac grounded, A
V
= 6 dB,
V
DD
= 2.5 to 5.5 V
V
DD
= 2.5 to 5.5 V
|V
OO
|
Output offset voltage (measured differentially)
5
25
mV
PSRR
Power supply rejection ratio
–75
–55
dB
V
icm
Common-mode input voltage
0.5
V
DD
–0.8
V
Inputs shorted together,
V
DD
= 2.5 to 5.5 V
V
DD
= 5.5 V, V
I
= V
DD
V
DD
= 5.5 V, V
I
= 0 V
V
DD
= 5.5 V, No load or output filter
V
DD
= 3.6 V, No load or output filter
V
DD
= 2.5 V, No load or output filter
Shutdown mode
CMRR
Common-mode rejection ration
–69
–50
dB
|I
IH
|
|I
IL
|
High-level input current
50
μ
A
μ
A
Low-level input current
5
6
9
5
7.5
mA
I
DD
Supply current
4
6
1.5
μ
A
V
DD
= 5.5 V
V
DD
= 3.6 V
V
DD
= 2.5 V
V
(SDR, SDL)
= 0.35 V
V
DD
= 2.5 V to 5.5 V
G0, G1 = 0.35 V
500
r
DS(on)
Static drain-source on-state resistance
570
m
700
Output impedance in shutdown mode
2
k
kHz
f
(sw)
Switching frequency
250
300
350
5.5
6
6.5
G0 = V
DD
, G1 = 0.35 V
G0 = 0.35 V, G1 = V
DD
G0, G1 = V
DD
11.5
12
12.5
Closed-loop voltage gain
dB
17.5
18
18.5
23.5
24
24.5
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
DD
= 5.0 V, f = 1 kHz, THD = 10%
V
DD
= 3.6 V, f = 1 kHz, THD = 10%
V
DD
= 5.0 V, f = 1 kHz, THD = 10%
1.4
R
L
= 8
P
O
Output power (per channel)
0.72
W
R
L
= 4
P
O
= 1 W, V
DD
= 5 V, A
V
= 6 dB,
P
O
= 0.5 W, V
DD
= 5 V, A
V
= 6 dB,
f = 1 kHz
2.1
f = 1 kHz
0.14%
THD+N
Total harmonic distortion plus noise
f = 1 kHz
0.11%
Channel crosstalk
–85
dB
V
DD
= 5 V, A
V
= 6 dB,
V
DD
= 3.6 V, A
V
= 6 dB,
V
DD
= 3.6 V, V
IC
= 1 V
pp
,
Av = 6 dB
f = 217 Hz
–77
k
SVR
Supply ripple rejection ratio
dB
f = 217 Hz
–73
CMRR
Common mode rejection ratio
f = 217 Hz
–69
dB
28.1
Av = 12 dB
17.3
Input impedance
k
Av = 18 dB
9.8
Av = 24 dB
5.2
Start-up time from shutdown
V
DD
= 3.6 V
3.5
ms
No weighting
35
V
= 3.6 V, f = 20 to 20 kHz,
Inputs are ac grounded, A
V
= 6 dB
V
n
Output voltage noise
μ
V
A weighting
27
3
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